NEHA Registered Environmental Health Specialist/Registered Sanitarian (REHS/RS) Practice Exam – All Questions

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Construction noise is tolerated better when people understand it’s temporary and part of progressA given individual will most easily tolerate noise when:Plain sedimentation: natural gravity settling in water bodies without chemical aidThe quiescent settling of water in reservoirs or lakes without the aid of chemicals is known as what?Understanding how microorganisms break down organic matter in wastewater treatmentIn wastewater treatment, which process uses microorganisms to break down organic matter?Which building material is safest for exposure to radioactive minerals, and why wood tops the list?From the standpoint of exposure to radioactive minerals, which building material would probably be the most "safe"?

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Showers are mandatory at hazardous waste clean-up sites for operations lasting longer than what duration?
Which organization is responsible for public health in the United States, including food safety?
The primary method of eliminating house flies is?
Which of the following is (are) fundamental to the control of inorganic chemicals in drinking water?
Which regulation requires the development and maintenance of an exposure control plan?
Which agency developed guidelines to assess the environmental impact of housing and urban development?
An infected organism that does not show symptoms during the spread of an illness is known as a:
What should a program plan for activities list as criteria?
What is the minimum wash time required for a single-tank conveyor dishwashing machine?
What essential action should be taken after servicing a septic tank?
Many states require the refrigeration of shucked shellfish at or below ______ but above 32 degrees F:
How many ergs of air represent one roentgen?
What is crucial for effective cockroach control?
How much earth should be placed on refuse at the end of the day?
The appointment and maintenance of an Institutional Biosafety Committee (IBC) is a requirement of which organization?
Relief from hay fever may be obtained by:
How can the rabies virus be transmitted?
Low-pressure, vacuum and cluster systems may be used?
An example of what involves closing down an establishment without first giving a required statutory notice?
Sylvatic plague is defined as an infection in which type of animal?
Which type of rock is classified as metamorphic?
Which of the following is typically used at a residential sewage treatment system with a surface discharge?
Lead poisoning is most commonly associated with children living in homes built before which year?
What is the purpose of a septic tank in wastewater management?
After a landfill site is closed, what is the minimum depth of compacted soil that should cover it?
Which of the following entities is primarily responsible for establishing water quality standards?
Which type of radiation has the ability to penetrate skin and tissue?
What is the preferred method for disposing of domestic wastewater?
What is a common indicator of a potential tick problem in an environment?
Which contaminant level must be reported to the public if exceeded?
What is a major effect of stratospheric ozone layer depletion?
What is the advantage of compressing or shredding bulky objects before landfilling them?
The consumer product most significant in terms of radiation exposure is:
Which substance has been known to cause crippling skeletal damage to cattle?
What determines the pitch of a sound?
In the context of groundwater monitoring, what is often tested for effectiveness?
To prevent chimney backdrafts, how many inches must the chimney be constructed above the highest point of the roof?
Diatomaceous earth filters should be augmented by what?
The one of the following diseases in which rats don't act as the intermediate hosts is?
What is a significant environmental health risk associated with cross-connections in water systems?
Which organization is usually involved in dealing with major disasters?
A "vision" in strategic planning could be defined as:
Which of the following is not a recommendation for topography and site survey?
When examining road cuts, stream embankments, and/or building excavations, the information obtained about soils is:
What does porosity measure in relation to rocks and water?
What is the primary concern with using wetlands for landfilling?
Which of the following is not considered a common refrigerant?
What etiologic agent for malaria is most fatal to man?
The Overseas Development Council’s Physical Quality of Life Index includes which of the following assessments?
What type of analysis is crucial for a comprehensive solid waste study?
At what temperature and for how long does a sweetened milk product need to be pasteurized?
For every 1,000 new people, a community will generally require all of the following except?
What type of systems are most suitable for the destruction of organic compounds?
Activated carbon is used to:
What is the primary cause of a short incubation period in foodborne illnesses?
What is a key factor in the strength of a household hazardous waste management program?
Items such as tennis balls, golf balls, gloves, and auto tires that come into contact with poison ivy, oak, and sumac may spread the poison as well as physical contact with the plants.
It is estimated that the number of Americans who are exposed daily to noise that has the potential to damage their hearing is:
Are sources of x-rays that operate at a voltage above 10 kilovolts less hazardous than sources under 10 kV?
In a test conducted in North Carolina, how far did sewage organisms travel in sandy soil?
Which of the following is NOT commonly used to disinfect water?
Which of the following is the most critical step needed before detailed information is collected?
Which pathogen is NOT responsible for urine being non-sterile?
Which characteristic of PCBs contributes to their status as an environmental and health hazard?
Regulation of drinking water additives is the responsibility of?
In public health planning, what is a critical step in assessing the potential impact of a project?
If time only is used as a public health control, what is the maximum period of time recommended by the FDA for time/temperature control for safety food to be held?
What is the estimated duration for the effects of greenhouse gases already in the atmosphere after emission reduction?
Which organization regulates the control of bloodborne pathogens?
What is the recommended maximum level of NTU for swimming pool water clarity?
What does plan implementation require?
How does the half-life of a radionuclide relate to its hazard potential?
Leachate containing primarily low molecular weight organic compounds are best treated by which method?
Which method is typically used to control rodent populations in urban areas?
In what direction should the operation of a sanitary landfill occur?
The poison found in poison ivy, oak, and sumac is extremely volatile. What is the correct answer?
Scabies is an infectious disease of the skin caused by which organism?
What is an important consideration when designing a landfill?
Which of the following is considered a secondary pollutant?
In terms of health effects, which UV type is most harmful to humans?
Individuals react differently to noise depending on which factors?
A pool filtration system should filter the entire volume of water a minimum of every:
What disease is most likely transmitted to restaurant customers due to rats in the food prep area?
Which organisms are most resistant to unfavorable environmental conditions and indicate past or possibly intermittent pollution?
The air gap between the faucet and sink overflow rim should be how many times the diameter of the supply pipe?
Which authority issues a certificate of compliance when a system is properly installed?
Areas on the windward side of mountain ranges can expect less precipitation due to the forced rising, expansion, and cooling of moving air masses. This statement is:
The National Environmental Policy Act aims to ______.
Which soil type has the greatest percentage of porosity?
What is a typical pre-treatment process for surface water before it is used as drinking supply?
Which type of waste management is intended to reduce emissions from landfill operations?
What fundamental step is involved in managing organic chemicals in drinking water?
A public health official has the legal authority to take action to protect community health. This role is commonly referred to as:
The rate at which atoms of radioactive sources disintegrate is measured in which unit?
What is a primary benefit of strategic planning for organizations?
Which nutrient is commonly associated with the process of eutrophication?
Which term is used to describe the exposure of large populations to ionizing radiation?
What purpose do local sewage and waste ordinances serve?
What is the major source of sulfur dioxides in the atmosphere?
How does population growth impact sewage treatment requirements?
Incinerators are rated based on what measurement?
Which one of the following is not a natural source of radiation exposure?
The term "rem" does not take into consideration the biological effect of different kinds of radiation from the same dose in rads. What is the correct answer?
How long can sunlamps radiate UV rays before auto-shutting off?
What is true regarding the disposal of equipment containing PCBs?
What type of materials are effective in reducing noise transmission?
How much sewage do residential cesspool and septic tank soil absorption systems discharge into the ground daily?
Which of the following must be determined to establish the operational depth of a sanitary landfill?
The size of a septic tank should be increased by what percentage if it services a garbage disposal?
Can a thin sheet of paper stop a beta particle?
What is the main environmental concern associated with high motor vehicle traffic?
What is the pH of a solution with a hydrogen ion concentration of 1 x 10^-8 moles per liter?
Is funding for the collection, storage, and disposal of household hazardous waste always provided by the individuals who generate the waste?
Which of the following is an example of a factor that affects sound propagation?
Endemic typhus is primarily transmitted by which vector?
Prior to 2008, when was the last time new nuclear reactors were ordered by US utility companies?
Which organization routinely samples air, water, and food supplies for radionuclides?
The US DOT emergency response guidebook can be used to do which of the following?
Which method is commonly used to assess noise exposure levels in the workplace?
The ______ in many cities has been leveling off, but increasing in the suburbs.
Where was the "Ozone Hole" first noticed?
A significant public concern that influenced the establishment of NEPA was?
Which of the following is an important component of a sanitary survey for water systems?
What conditions would result in the worst case of pipe damage due to corrosion?
What is the primary purpose of proper household hazardous waste management?
Which of the following is included in the list of toxicity priority pollutants?
Subdivision plans that involve individual wells and sewage disposal systems must:
Which of the following best describes PCBs?
Which material is unsuitable for the disposal of sewage by subsurface means?
What is the goal for effective management of hazardous waste?
If hard water is softened by the ion exchange method, which one of the following will increase?
At a pH of 7.2, what is the molecular state of hypochlorous acid after chlorination of pool waters?
What factors contributed to the significant increase in life expectancy from 1900 to 1974?
Which condition may help minimize leachate problems in landfills?
Homes containing garbage disposals should have a septic tank capacity increased by what percentage to accommodate increased organic loading?
What plays a significant role in the strength of a household hazardous waste management program?
What can result from the bioaccumulation of PCBs in aquatic food webs?
Field observations are not always reported in total because?
What is a potential risk caused by improper chemical use in pool water?
The grinding of garbage is an acceptable method of?
Are long-term effects of radiation on an individual predictable?
What animal is recognized as the primary reservoir for the newly discovered Hantavirus?
At what gestational week is a fetus's hearing ability well-developed?
What method is used to reduce the temperature of gases leaving a furnace?
What temperature should hot water be at when disinfecting rubber valves and other parts of milking equipment?
The Emergency Planning and Community-Right-to-Know Act was prompted by the accident at:
What is the key to an effective, long-term rodent control program?
What is the safe cooking temperature for poultry products?
Which conditions indicate organic stream pollution?
The use of methyl bromide is mainly associated with which application?
Does the nature of all radiation differ only in frequency and wavelength?
Which soil condition is most favorable for the removal of viruses?
Shock loading refers to:
Which one of the following is least likely to be a viable response to stop global warming?
What is a potential cause of septic-tank failure?
Which environmental concern is associated with human activities like deforestation?
According to the Freedom of Information Act, which information is not publicly available?
The greatest exposure to human-made ionizing radiation for most individuals is through:
Which geophysical method is NOT used to identify and investigate ground water pollution?
Common refrigerants include which of the following?
Which cells can replace themselves or recover to some extent from radiation exposure if the dose is not excessive?
What safety requirement ensures that pool drains do not create dangerous suction effects?
Regulations for automobile emission standards began with vehicles manufactured in which year?
What does the presence of excessive chlorine in drinking water not effectively do?
Which of the following best defines effective porosity or specific yield?
What chemical is used to dechlorinate water samples that have been chlorinated?
How is the term contamination defined in connection with a communicable disease?
What is the consequence of using low-quality materials in wastewater treatment systems?
According to Food Additive Regulations, how is a pesticide added to processed food categorized?
What is the primary product formed when chlorine is added to water?
What is one of the most effective ways to improve health standards in Third World countries?
Natural disaster victims should be provided with how much water per day?
A standard stating "the total bacteria count should not exceed one hundred per utensil surface" is an example of what type of objective?
Sandwich and salad mixtures should be placed in shallow pans at a depth not greater than ______ to accelerate the rapid cooling of the food:
What is the minimum distance pool inlets should be located below the water line?
Which of the following is NOT a factor that influences chlorine disinfection efficacy?
Interior food service facility wall surfaces should not be made of which material?
Which air pollution component can lead to respiratory problems in humans?
What factors does the proper disinfection of water using chlorine depend on?
According to "Universal Precautions", what is considered infectious?
When is it necessary for a sanitarian to obtain a search warrant to enter a restaurant kitchen?
Which statement about asbestos exposure is false?
The permeability of soil is directly related to what characteristic of the soil?
What is required for inspections of nonpublic areas?
What type of well is considered least likely to become contaminated?
In large swimming pools, how far apart should inlets be located if the outlets are more than 5 feet from the end wall?
What is the normal home range of the Norway rat?
The Consumer Product Safety Commission requires refuse bins to withstand a hanging weight of how many pounds?
Which of the following is not a type of hazardous waste incinerator?
The US site considered for the nation's first permanent repository for nuclear waste is located in:
Which phrase most accurately describes the term endemic?
To create a solution of 100 mg per liter available chlorine, how much of 5.25 percent bleach should be mixed with one gallon of water?
What is the ideal pH range for swimming pools?
Which Act authorized the Environmental Protection Agency to collaborate with state and local governments on anti-noise programs?
The most characteristic symptom of individuals occupationally exposed to PCBs is:
Which raises the pH of pool water?
A water sample containing 5,000 fecal coliform colonies per 100 ml falls into which environmental impact category?
What is a key requirement for a properly designed incinerator to effectively burn combustible refuse?
Is a sampling train used to measure emissions from locomotives?
Pediculosis refers to an infestation of which of the following?
What does a SWOT analysis focus on?
Diatomaceous earth filters should be supplemented by what system?
What is one of the primary measures in integrated pest management?
The proper method of obtaining a sample of tap water for bacteriological analysis involves:
Hazardous wastes generated by vehicle maintenance shops include
What is one purpose of public information and community action?
The addition of sodium bicarbonate will
Long term effects of lead poisoning include:
Which of the following has not been linked to slowing or halting respiratory tract cilia movement?
What do the orange pages of the emergency response guidebook provide?
A dragline at a landfill site can be utilized for which of the following purposes?
How is the energy of ionizing radiation measured?
The total number of inspections should be divided by which parameter for effective reporting?
What is a crucial factor in preventing foodborne illness during food preparation?
Which animal is known to carry the disease lymphocytic choriomeningitis?
Which of the following is NOT a form of alkalinity?
What aspect of community health does regulatory responsibility cover?
Some common pathogenic organisms found in wastewater can survive harsh temperature extremes for more than how long?
What is the first type of hearing sensitivity to become damaged due to excessive noise exposure?
What standard do health departments commonly use to evaluate the cleanliness of food establishments?
What attracts wasps?
The emergency plan at a nuclear electric power plant must include a means for notification of the public living within how many miles of the plant in a 15-minute period?
What is the major source of lead exposure among adults?
Should biological effects govern the required standards of radiological protection?
What is the estimated half-life of lead in bones?
Which federal agency is primarily responsible for ensuring the safety of food products in the United States?
Soil moisture of approximately __ % of saturation is optimal for the survival of pathogens:
What type of soil texture typically provides the best drainage for absorption fields?
Another name for Epsom salt is:
What does poor soil permeability most commonly lead to in wastewater treatment?
What is the recommended internal cooking temperature for ground beef?
What does the term "endemic" refer to in epidemiology?
What does mottled brown and red soil indicate?
What major benefit is derived from assessing air quality in urban areas?
Environmental Impact Statements are required by which federal act?
Objectionable tastes and odors in public water supplies are primarily due to the presence of?
Those who work on uncontrolled hazardous waste sites are required to receive a minimum of how many hours of training?
Which type of radiation is generally less harmful to human health?
Which one of the following is considered by many to be the most insidious type of pollution?
Which term is used for the variety of processes by which water returns to the earth's surface?
What is the EPA's stream water quality rate for fecal coliform?
Who is responsible for providing a medical surveillance program to workers at hazardous waste sites?
High-density compaction of solid wastes is typically achieved by compression to a density of more than what value?
What is the term for the interval between exposure to an infectious agent and the appearance of the first symptom?
What is the first step required before converting an "open dump" into a sanitary landfill?
What is used to measure concentrations of pollutants in a given air quality model?
According to the National Environmental Policy Act (NEPA) of 1969, which responsibility does the Federal Government have?
How far do most ragweed pollen grains typically settle to the ground after being airborne?
The regulatory level for total cresol under the RCRA Toxicity Characteristic rule is
Funding for the collection, storage, and disposal of household hazardous waste always comes directly from the individuals who generate the waste.
In which region of the atmosphere does the temperature slowly rise with increases in altitude?
Laboratories working with infectious agents in well-controlled settings typically have what kind of impact on the community?
What is the smallest diameter hole through which an average house mouse can pass?
What is a radioisotope?
What factor does NOT affect the average amount of solid waste generated from a specific area?
All are anti-coagulant type rodenticides except?
What is the primary purpose of adding chlorine to pool water?
In terms of radiation safety, which standard is abbreviated as MPD?
How does the acidity-alkalinity balance in pool water affect water quality?
Which is the standard measure for water turbidity?
How often should biological safety cabinets be performance tested?
Sources of dioxin include:
The causative agent Naegleria fowleri has been linked to which of the following diseases?
What is the usual mode of infection from Salmonella?
Which statement about ozone as a disinfectant is false?
Who establishes tolerance levels of pesticides?
Water containing nitrates generally indicates
Which blood-feeding insect is known to affect outdoor enthusiasts and has larvae that develop in fast-moving water?
A major concern associated with Chernobyl style nuclear reactors is that:
What is the next step when an order has been ignored?
Which of the following is a common symptom of foodborne illness?
What process is typically used to remove hardness from water?
A major worry associated with prolonged, low-level PCB exposure is:
What describes the relationship between local and state governments regarding environmental health?
Which term is used to indicate exposure of large populations to low levels of radiation?
A chemical used to adjust pool alkalinity is:
What is the most common form of cancer in women under age 30?
Will a concentration of x-ray machines in one building affect scatter radiation?
True or False: Everyone is immune to effects from natural background radiation.
Which group is at increased risk for listeriosis?
What is the maximum acceptable turbidity of water treated through slow sand filtration?
What is a major problem associated with selecting a sunscreen based solely on SPF?
Which type of waste is most closely associated with injury risks for waste collection workers?
Where is the majority of fresh water found?
The Montreal Protocol categorizes which substances into two classes based on their ozone-depleting potential?
When performing complete asbestos removal, which act's provisions must be strictly adhered to?
Which type of bacteria is commonly used as an indicator organism for water quality testing?
The formula (Volume of Pool / Pump Flow Rate (GPM) x 60 min) = turnover rate, will tell us:
Should household hazardous waste disposal bids be evaluated solely based on price?
Where should a permanent facility for collecting and storing household waste be located?
Why should hazardous wastes not be placed in an ordinary sanitary landfill?
The term containment in a laboratory context describes what?
A primary pollutant is one that is formed in the atmosphere as a result of chemical reactions. Is this statement true or false?
What term describes the measure of the probability and severity of adverse effects under specific conditions?
Which element is often monitored in drinking water to assess the contamination from agricultural runoff?
The amount of sound energy a material can absorb depends on what?
All of the following have been associated with methyl mercury poisoning except:
In the United States, the Ringlemann smoke chart consists of how many rectangular charts?
What are the main challenges associated with hazardous waste disposal?
Which method would be the least effective at controlling condensation in food preparation areas?
Heating of air, gas, or gas mixture up to 9032 degrees F for the thermal destruction of hazardous wastes describes a process called:
Listeriosis is commonly associated with:
A vaccinated pet exposed to a rabid animal should be confined for how long or destroyed?
Aeration in water treatment involves which of the following?
Which of the following systems is sometimes used where soil is unsuitable?
Isotopes of the same element have what in common?
Which waste material is NOT classified as California list waste that is banned from land disposal?
What is the primary function of the Food Safety and Inspection Service (FSIS)?
Composting involves the controlled decay of organic matter derived from which of the following?
The random inspection approach fails to focus on what?
What must be done to effectively sanitize food contact surfaces?
At what concentration can hydrogen sulfide be fatal?
Which of the following is not an alternative name for the Norway rat (Rattus norvegicus)?
If permitted under existing laws, which action would effectively cease the operation of an establishment?
What may legal proceedings to enforce a law include?
Xeriscape landscaping involves what type of plant selection?
What is the unit of measurement most commonly used to measure loudness?
Which of the following materials is known to reflect sound?
The effective half-life of an injected radionuclide depends on which two factors?
Halon-1211 is used primarily in ______.
Performance of an authorized act in an unauthorized manner is called:
Which product would probably have the lowest reclamation value?
After a septic tank has been cleaned, why should it not be scrubbed and disinfected?
Where are the greatest temperature increases as a result of global warming most likely to occur?
It is estimated that what fraction of water and foodborne diseases are actually reported?
What principle guarantees an individual's right to be treated with decency and fairness by governmental officials?
Which of the following is essential for maintaining the safety of frozen food?
In which part of the Earth's atmosphere are photochemical oxidants produced?
According to the EPA, what percentage of the waste stream can be recovered economically?
What should food service workers do to prevent cross-contamination?
Which government level generally has the authority to regulate the construction of public facilities?
What type of water treatment method typically involves the use of alum?
Reducing which of the following can help mitigate acid rain?
Why should sewage sludge not be used as a soil builder or fertilizer supplement for crops if it has not been properly tested?
Where is the quality of milk reaching the ultimate consumer largely determined?
Which federal agency is responsible for regulating hazardous waste treatment, storage, and disposal (TSD) facilities?
Which of the following site features is often improved for public health reasons during the selection of a public building site?
What is one of the major risks when burning poison ivy, oak, or sumac?
Which one of the following radiations is most penetrating?
What does the Langelier index determine the stability point of?
What is a major weakness of using animal studies to determine safe levels of air pollutants?
What is a sign that a septic tank may need service or attention?
What is "Lasso" a trademark for?
When is an environmental impact statement required?
What is the foundational purpose of using subdivision regulations in planning?
What is a notable characteristic of PCBs?
Sewage treatment plants should be designed to accommodate which consideration?
A particle count of above what number is representative of an urban area?
How soon do symptoms from contact with poison ivy, oak, and sumac typically appear?
How often should water in wading pools be completely recirculated?
The effects of air pollution are influenced by:
When should X-rays be used according to health principles?
What is the most effective method to eliminate pigeons?
In an emergency situation, what is the correct order of importance for first responders?
What type of sound frequency is typically categorized above 20 kHz?
The major impact of global warming would most likely be in which area?
"Acid Rain" was first identified in:
A major process for the prevention of respiratory disease of susceptible persons is?
The infection reservoir for arthropod-borne viral encephalitis is generally accepted to be:
The chemical quality of a pool is generally measured by which 2 tests?
What type of disease is schistosomiasis classified as?
Is it true that most cells, tissues, and organs in the body are independent and the destruction of one will not affect the others?
What does the Toxic Substances Control Act (TSCA) of 1976 primarily regulate?
Which of the following is a guideline for preparing for mass gatherings?
In which atmospheric region do virtually all life activities occur?
Which statement about dioxin is considered misleading due to the testing done on specific animals?
What is the maximum accumulated time that time/temperature control for safety food can safely be exposed to the temperature danger zone?
Celery has shown to be acceptable when it is?
Which method is NOT effective for preventing the spread of bacteria in food service?
The basic principles of disease control include all of the following except:
True or False: A lower voltage x-ray machine is more hazardous than one operating at a higher voltage.
Which part of solid waste management often requires financial support from another part?
Which gas, commonly found in sewers, is not considered explosive?
If a health official fails to close a restaurant with imminent health dangers, what is this considered?
Which statement regarding surface and groundwater is true?
When the internal temperatures of perishable foods reach 40F, which pathogen's growth is inhibited?
Which treatment method is used to reduce certain heavy metals in treated drinking water?
Mussels from which locations can contain a chemical poison that is not destroyed during cooking?
Wastes generated by the construction industry include
What type of pollutant includes substances like acid rain contributing agents?
What is an epidemic?
In children, blood lead levels (BLLs) more than ____ are associated with decreased intellectual performance and other adverse health events.
What is the importance of having on-board holding tanks for watercraft?
"Earth Day" began in:
In pool maintenance, what is considered the ideal time frame for water filtration?
Which of the following is NOT a method of transmission for disease by flies?
Venturi scrubbers, spray nozzles and packed towers are examples of what type of waste treatment methods?
The Muerto Canyon virus primarily affects which organ in humans?
Why can administrative hearings be beneficial?
What is the primary design purpose of a Class II biological safety cabinet (BSC)?
The number one item listed under emergency equipment and supplies is:
A treatment for lead exposure that involves administering a drug that binds to lead and facilitates its excretion from the body is called:
What is the best means of inhibiting the growth of microorganisms in fresh meat?
What service provides information and advice on hazardous waste spills 24 hours a day?
What is the best preventive measure for poison ivy, poison oak, and poison sumac?
Which agency is primarily responsible for setting standards for air quality in the United States?
What is the primary reason for the decline in water tables in some groundwater dependent areas?
Which regulations must containers used in site clean-up operations comply with?
Which of the following is an essential element of a regional planning study and report?
The process of reducing disability or dependence resulting from a disease is referred to as:
What requirement was mandated by the 1984 amendment to RCRA for hazardous waste landfills?
Nosocomial infections are a recurring problem in which setting?
What is the most significant threat to the ozone layer?
How does precipitation help in cleansing pollutants in the atmosphere?
Under which department does the CFR Part 1910 of Title 29 "Bloodborne Pathogens" fall?
The major environmental concern associated with uranium ore milling is:
What level of short-term exposure to formaldehyde can cause serious health reactions?
Which condition could lead to the sudden release of lead stored in bones into the bloodstream?
What is the common method for sanitizing milking equipment to ensure safety?
Which disease is not typically transmitted by insects?
What is the most important step in wastewater operations?
A problem that utility companies may face, leading to the closure of nuclear power plants, is the lack of:
What is one of the main concerns associated with the operation of a landfill?
What is the most common method of applying wastewater to land?
What is the term for the amount of heat required to lower one pound of a product one degree Fahrenheit?
Which of the following types of radiation is not commonly recognized?
What are the three essentials for combustion in an incinerator?
Imhoff tanks used for sewage disposal are primarily dependent upon the action of:
What is the purpose of prechilling milk after it leaves the cow?
What is the most important factor leading to the abandonment of a site?
Is a QOL index useful in predicting future demands on water supplies in subdivisions?
The environmental impact of increased carbon dioxide is primarily attributed to what activity?
Beta particles can be a health hazard either as internal or external radiation due to ionization in tissues. Is this statement true or false?
In a rectangular furnace, how are the grates typically arranged?
What is the maximum reduction in future landfill volume that can be expected from resource recovery?
In a laboratory, what is the primary risk associated with mouth pipetting?
Which factor is most important in contributing to disease transmission of microbiological agents?
What does the term "half-value layer" (HVL) refer to in radiation terminology?
What health threat can swimmers face in inadequately treated pool water?
What chlorine concentration in drinking water would be considered excessive?
What type of factor is discussed in the context of household hazardous waste?
The major route of entry of inorganic mercury into humans is through:
What is a characteristic of a "Restricted Classification" pesticide?
The EPA requires that dioxin-bearing wastes be ______ destroyed or reduced before disposal in a secure hazardous waste landfill.
In domestic water well supplies, which two elements cause the majority of hardness?
Life expectancy serves as an indicator of what health-related factors?
It has been estimated that waterborne diseases account for how many illnesses annually worldwide?
Which method is preferable for controlling weeds and pests in a sustainable way?
What percentage of a typical American's lifetime exposure to ultraviolet radiation occurs before age 20?
General overall policy planning excludes which of the following components?
What constitutes a biohazard?
Which microbe is primarily responsible for skin infections in whirlpools?
A water leak no larger than 1/8 inch in diameter can result in a loss of how many gallons in 24 hours?
Under RCRA, the EPA standards must be followed by all persons who do what?
Radon in a home is detected through the measurement of which particles?
Which one of the following poses virtually no health threat in terms of inorganic mercury?
On average, how much air do humans breathe in a day?
Which of the following is an essential component of effective environmental health programs?
What is the minimum space emergency shelters should provide per person?
How should the drain line of an ice machine connect to the sewer system?
Which of the following does not appear to be associated with exposure to microwaves?
What environmental factor can significantly influence the health of aquatic ecosystems?
A major problem associated with cadmium poisoning is:
The preferred treatment for algae control is:
Which environmental factor contributes primarily to the incidence of smog formation?
Which organization developed guidelines to assist urban areas in assessing the impacts of development actions?
At what level of nitrogen dioxide concentration does it generally not pose a health problem?
What is the most effective measure for mosquito control?
Which method of backsiphonage prevention is considered least effective?
The principle of time, distance, and shielding in radiation safety is primarily meant for what purpose?
If a septic tank test shows negative for hydrogen sulfide (H2S) and no odors are present, can it be safely entered without a respirator?
Owners of tanning salons claim they offer a safe tan because they use which type of light?
Which agency regulates hazardous waste in the United States?
The greatest number of casualties as the result of air pollution occurred in:
What is the primary benefit of a footing drain?
What is the most practical method for removing nitrates from water?
What is the ideal floor covering for a kitchen environment?
Which of the following is NOT an option for hazardous waste minimization?
The precise levels at which specific air pollutants become a health hazard are relatively easy to establish by existing surveillance systems. Is this statement true or false?
What is the primary purpose of conducting a sanitary survey in drinking water management?
What is a significant health issue associated with occupational exposure to asbestos?
What is required to ensure the effectiveness of landfill covers?
Which one of the following would probably be most cost effective in the prevention of lead poisoning of children?
What must always be done with contaminated needles?
Mosquitoes are responsible for all except?
Which of the following shellfish are most likely to cause illness?
Studies suggest that swimmers overall have a higher illness rate than non-swimmers due to what factor?
Which one of the following is most hazardous to human health?
Which agency is primarily responsible for safeguarding public health in the United States?
What is required for wearing contact lenses in a potentially hazardous area?
What is a commonly known disinfectant used in pool maintenance?
Which of the following is a known source of PCB contamination in the environment?
Which cockroach is the most common pest found in restaurants?
Salvato recommends at least one water closet for each ____ beds in a hospital or nursing home.
A major goal of the Earth Summit was to:
Which of the following is a common limitation of using land disposal for waste management?
What are engineering controls in a workplace?
Which rock type is an example of an igneous formation?
Which pest is widely known to transmit endemic typhus?
The National Safety Council reported that solid waste collection workers have an injury frequency approximately how many times the national average for all industries?
What percentage of total pool water should gutters or skimmers ideally receive?
According to observations, which measures are more effective for controlling cholera and typhoid?
When the median coliform MPN of water does not exceed 700 per 100 ml, this area is designated as?
Which respiratory device provides the best protection?
In water treatment, why is aeration a significant process?
Perhaps the greatest problem that resulted from the testing of nuclear weapons prior to the Nuclear Test Ban Treaty was:
Which of the following is included as a major regulatory requirement in the Safe Drinking Water Act (SDWA)?
What is the primary source of funding for municipal capital improvement?
An operating free chlorine residual of ______ is usually required in practice.
Which gas is primarily dangerous due to prolonged exposure in poorly ventilated basements?
Which of the following is considered biological safety equipment?
The term "Federal agency" does not include which of the following?
What is the term for the horizontal part of the stairs that one steps on?
Continuous exposure to high-level noise is less harmful than what type of exposure?
What is the ideal temperature for pasteurization of milk with an increased fat content?
Do the terms "washout" and "rainout" refer to a cleansing process of pollutants in the atmosphere?
The percentage of reported food and waterborne diseases is estimated to be?
What percentage of total pool water should ideally be directed to the gutters or skimmers due to the presence of organisms and materials?
What is commonly added to a pool to reduce chlorine odor?
Which type of cancer is considered a classic example of X-ray induced malignancy?
Which amendment of the US Constitution protects a nonpublic area from unreasonable searches and seizures?
Minamata Disease is associated with:
What type of waste requires a charging hopper, gas cooling, and particulate removal for disposal?
The regulatory level for benzene under the RCRA Toxicity Characteristic rule is?
The concentration resulting from a continuous emission of a pollutant is directly proportional to wind speed. This statement is:
Compactibility of soil in landfills primarily depends on which factor?
What is one method to reduce the level of fluorides in drinking water?
Regarding municipal solid waste management, what is the purpose of a waste hierarchy?
What is the preferred method for controlling sewage from watercraft?
What is the median lethal dose of radiation associated with a 50% mortality rate in one month?
What process follows the biological breakdown of organic matter in sewage treatment?
Which of the following agents is a common precursor to acid rain?
What is the leading environmental health problem affecting children in America?
The normal change in temperature with altitude is noted as what?
What primary atmospheric condition affects the concentration and distribution of air pollutants?
What is the main purpose of HACCP in food safety?
What is the most prevalent arthropod-borne disease transmitted to humans in the US today?
The major target for damage associated with ultraviolet radiation is:
An employer is held liable for the torts of its employee committed within the scope of their employment. This is referred to as:
The safe distance between a well and a waste disposal system depends on which factors?
Which gas is primarily responsible for the odor associated with rotten eggs?
What principle is the Green Lights program primarily focused on?
What is an essential requirement for septic tank systems serving private homes?
What is a recommended action following an inspection and written report before leaving the site?
Which residual test for chlorine is considered least desirable?
A county or regional landfill should provide enough area for what period of operation?
Stack samples must be collected at what condition relative to the flow of gases through the stack?
Inhalation of which substance may lead to chronic airway resistance?
In the United States, what is the status of dumping garbage and other refuse at sea?
What does the Safe New Alternatives Policy program (SNAP) do?
Which statement regarding noise is true?
The legal precedents that form the basis of US air quality control regulations currently in effect began with the:
Approximately how many Americans have experienced full or partial hearing loss due to excessive noise exposure?
Milk is considered Ultra-High Temperature pasteurized if it reaches which temperature?
When should a poison-bait application program for rats be started at open dumps?
What is a concern regarding all hazardous waste landfill liners?
The gases frequently found in water that encourage corrosion are
When should a warrant for a routine inspection of a private dwelling be obtained?
What effect does the reduction in mortality from a disease have on overall life expectancy?
What is an essential maintenance practice for avoiding septic tank system failures?
Acid condensates, dust, soot, and smoke are categorized as what type of air pollutants?
Which of the following is considered an unacceptable use of radiation?
Do chlorofluorocarbons (CFCs) increase the amount of ozone in the atmosphere?
Which disinfecting compound can be safely used in full strength?
What is the primary concern regarding leachate in landfill management?
Which one of the following has been implicated in many rush-hour traffic accidents?
Which of the following is probably least susceptible to microwave induced injury?
The maximum number of pool users per 100 square feet of pool surface is typically
In the APHA method of measuring housing quality, which of the following would be considered a minor deficiency if found inadequate?
Food inspection programs of the future will focus increasingly on which of the following?
What does the Montreal Protocol aim to control?
The presence of which microorganism in water indicates past or intermittent pollution?
Which gas is not considered malodorous?
Is disease considered the antithesis of health, defined as "a state of physical, mental and social well-being and ability to function, and not merely the absence of illness or infirmity?"
The increase in carbon dioxide concentration in the atmosphere is primarily due to what factors?
A landfill site should not?
Which of the following is an example of a single dose rodenticide?
Which of the following pest control methods is deemed legal?
What is the primary function of filtration in therapy units?
What is the main purpose of a footing drain in a building?
Which technique is essential for preventing cross-contamination in a kitchen?
A jet pump can lift water a maximum of how many feet?
Which statement about sanitation and pest control is correct?
What is the primary source of air pollution in the United States?
A deterioration in the ozone layer of the stratosphere can lead to an increase in ultraviolet radiation reaching the Earth. Is this statement true or false?
What pH level can cause eye irritation in swimming pool water?
How can food poisoning from Staphylococcus aureus be prevented?
Which type of prevention focuses on preventing the progression of a disease?
Which term describes an increased concentration of pollutants due to continuous emission?
Which type of soil is most suitable for subsurface absorption of wastewater?
Which agency is responsible for protecting our waterways from contamination?
Which federal law regulates underground storage tanks for hazardous substances?
Should a regulatory agency be consulted when conducting a suitability audit of a waste disposal company?
What percentage of electrical energy generated in the US is approximately produced by nuclear power plants?
Some of the main sources of pollen are trees in the summer, grasses in the spring, and weeds in the winter.
The most common type of noise measurement device used for initial surveys is the:
Which organism is primarily responsible for carrying Lyme disease?
What factor most significantly influences the quality of local water supplies?
An ordinary chest x-ray produces an exposure of about 0.1 rad; a very heavy diagnostic series produces about how many rads?
Which of the following chemicals is used to measure water quality?
Which health effects are most closely associated with air pollution?
The test that indicates the amount of extraneous material in milk but does not show dissolved material is called what?
When selecting a location for a sanitary landfill, which statement is correct?
At which concentrations can methane in the presence of air become explosive?
What primarily causes variations in infrared absorption across different climatic regions?
Which of the following practices is crucial for the effective management of solid waste?
Which organization has developed a national performance standard for environmental health?
Which principle(s) is(are) effective for external radiation protection?
Which of the following compounds would not contribute to water hardness?
Which method is NOT effective for controlling bats in structures?
What is the purpose of conducting air monitoring at hazardous waste sites?
What percentage of their total time do most urban dwellers spend indoors?
When is the fetal tissue most vulnerable to the harmful effects of ionizing radiation?
Which of the following conditions has not been associated with asbestos exposure?
What fundamental needs for a quality environment are emphasized by public awareness?
Which method is commonly used to protect against ionizing radiation in work environments?
Which of the following is a significant factor in hazardous waste management compliance?
What is considered to be the most devastating factor to biodiversity?
Which type of standard is often regarded as more challenging to enforce legally?
In sandy clay soil, what is the maximum height of unsupported sides or banks allowed for a person to work in a trench or pit?
What is the immediate priority for first responders during an emergency?
Why are fluorocarbons (FCs) widely used?
Which of the following are examples of groundwater systems?
Which of the following is a common symptom of pesticide exposure?
How does the acidity-alkalinity balance affect pool water?
Which process is critical for managing the environmental impact of solid wastes?
Unpasteurized eggs NOT intended for immediate service should be cooked to?
Which disease can cockroaches spread?
Why are some foods classified as time/temperature control for safety?
Beta radiation can be commonly eliminated by which materials?
What is the primary effect of chronic exposure to noise pollution?
Is it believed that the ingestion of one virus CFU can cause infection in humans?
What process can remove over 90% of sodium arsenate from water?
Which gas poses the greatest challenge for elimination of its use?
What happens to x-ray beams or fluoroscopes in many cases?
Which industry is historically linked to early occupational exposure to a toxic mineral?
What does the establishment number on a pesticide container indicate?
What phenomenon is a direct result of gases trapped in the Earth's atmosphere?
Nearly 25% of global carbon dioxide emissions are attributed to which of the following?
What is a common method for measuring noise levels in the environment?
Which group of organisms are prime sources of Giardia lamblia cysts?
If the radioactivity of a material is not known, what can be said about the determination of its half-life?
Which of the following sources can produce dioxin?
What is the maximum allowable MPN of fecal coliform in oysters sampled at the source?
Following floods or other natural disasters, public concern for which vaccination often arises?
When a business authority refuses consent to an inspection, what is the most appropriate action to take?
A certified industry inspection is defined as what type of inspection?
Which of the following statements about composting is accurate?
What primarily powers a hydraulic ram used to elevate water?
Residents of which of the following cities would probably receive the most cosmic radiation?
What is the correct term for hay fever?
The effectiveness of an inspection program relies on what aspects of regulatory staff?
A filter of 2 mm of aluminum is effective in absorbing which type of radiation?
What aspect of CFCs is responsible for their widespread use?
The presence of coliform in water indicates:
What percentage of saturation is considered optimal for the survival of pathogens in soil?
What type of exposure level management is considered an administrative control?
The Department of Energy regulations require the solidification of high-level radioactive wastes within what timeframe of their production?
What type of soil is most desirable as a landfill cover?
Which group of bacteria typically contains most of the pathogenic bacteria?
To produce thermal effects, microwave energy is converted to what in the body or organism?
Why is monitoring air quality essential for public health?
What is a key characteristic of police power?
Dairy equipment can be disinfected with a chlorine solution of what concentration?
What type of pollutants can be effectively removed using ion exchange methods in drinking water treatment?
In business districts, refuse including garbage from hotels should be collected how often?
Which of the following is a source of radiation?
What is the minimum educational requirement for sanitarians and environmental health scientists?
What is the optimal pH range to minimize eye irritation while maintaining effective residual chlorine?
How much liquid bleach is needed to treat 1000 gallons of water for drinking?
What is the primary reason the pH of a pool should stay less than 8?
What characteristic of water is essential for safe drinking water supply?
The ability of soil to absorb and allow water and air to pass through is not related to which of the following?
Salty flavors in milk can be attributed to milk from cows infected with which condition?
Which of the following statements about noise is false?
Does the United States Environmental Protection Agency have sole responsibility for implementing "The Noise Control Act of 1971"?
What is the best sanitary landfill method for an area with rolling terrain?
Why should a faucet be situated well above the rim of a sink in a plumbing system?
Hemolytic Uremic Syndrome is caused by infection with:
Many defects in x-ray units are easy to find and need no instruments. Is this statement true or false?
What is considered the primary source of excessive noise in many communities?
What contaminant may accompany methane production if large amounts of sulfate are also present?
The typical limitation of use of the septic tank absorption field system is due to?
What should an inspector primarily rely on when documenting evidence during an investigation?
After a landfill is closed, how much soil should ideally be placed on top of the site?
Dealers involved in the interstate shipment of shellfish must comply with requirements set by which organization?
What is the primary difference between gamma rays, x-rays, and visible light?
How much higher is the incidence of tuberculosis among laboratory workers compared to the general population?
What does a high JTU indicate about a body of water?
How should clear water be disinfected using 5% household bleach?
What term best describes an outbreak affecting a larger geographic area than expected?
Which statement is true regarding the use of pesticides in cockroach control?
What is the optimal pH range for eye irritation control in pools?
Which chemical is commonly used for sanitizing food contact surfaces?
Which of the following is not a characteristic of hazardous waste according to the EPA?
Which illness is commonly transmitted by mosquitoes?
Which gas was not scheduled for phaseout by 1996 as noted in the Montreal Protocol?
Hearing loss that lasts a few hours following exposure to excessive noise is referred to as:
What must supplement routine inspections in food-service establishments to ensure sanitation?
Which organization regulates bloodborne pathogens?
What is typically the primary goal of solid waste management?
The main environmental concern with improperly functioning septic systems is?
What was perhaps the first indication of health problems associated with exposure to ionizing radiation?
To raise the pH of pool water, which substance should be added?
Which of the following represents a primary gain of moving from the city to a suburban area?
Which nation has the greatest annual rate of carbon dioxide production?
Comprehensive community planning includes which of the following steps?
Immune system interference from dioxin exposure has not been demonstrated in which of the following?
Which method of addressing an asbestos hazard is considered the most expensive?
Drinking water standards generally specify that a water is safe if testing reveals no more than
The most common type of injury in a home is:
What is the easiest and least expensive method to conserve water in households?
The primary use of a sand filter is to:
How might global warming affect crop yields in the long run?
How long can Ascaris ova survive in moist, warm soil?
Injury to plants due to ozone presents as which of the following symptoms?
Why is a water sample usually packed in ice for bacteriological analysis?
For a pesticide to be applied on raw agricultural food, the residue must be below what tolerance?
The amount of time required to produce permanent damage to hearing is cut in half with an increase in sound of:
Brine from water softening units as low as what percentage may inhibit bacterial action in septic tanks?
What is described as the doing of an authorized act in an unauthorized manner?
What typically determines the well location in a subdivision lot?
What is true regarding childhood exposure to electromagnetic fields (EMFs)?
The degree of eutrophication of a lake is indicated by what factors?
Wasps are usually attracted to:
What does the acronym USEPA stand for?
How many litters can a single pair of rats produce in a year?
The primary purpose of stack testing is to?
Which preventive measure is most critical in reducing noise pollution in work environments?
By nature, unpolluted rainfall:
What disease is caused by an infection with Escherichia coli 0157:H7?
What could be the most dramatic consequence of global warming?
To provide enough refuse for an incinerator to continuously operate, a refuse storage pit/bin must hold approximately how many days of refuse?
What are frequent causes of disease resulting from cross-connections?
A factor or agent which increases the risk of cancer is known as a?
What does the Federal Insecticide, Fungicide, and Rodenticide Act require for pesticide products?
Which statement is true regarding Escherichia coli 0157:H7?
What is the maximum size allowed for a stair riser?
What is the appropriate process for bottle washing in large plants?
What does the acronym HAZWOPER stand for?
What was the first medical use for mercury?
______ assists in economic growth by increasing personal income and retail sales.
When temporary shelter is necessary in an emergency, the first consideration in shelter selection should be
Which alternative system is often necessary in places with high-risk factors for wastewater treatment?
Which food item is most commonly associated with botulism?
What is the recommended approach for the handling of solid waste starting from its generation point?
If groundwater is contaminated, what is the most likely source of pollution?
The Safe Alternatives Policy program specifies what?
How many pints of water does a person need daily to maintain bodily functions?
What is the best option for sanitizing food contact equipment?
What does RCRA stand for?
What is required regarding Hepatitis B vaccinations for employees in contamination risk jobs?
Swimming pool water clarity is measured in terms of
Which sampling device is best suited for collecting undisturbed soil samples?
The best control of swimmer's itch at a bathing beach is to
Which of the following describes a measure of exposure related to both the number of people exposed and the radiation dose received?
What event significantly reduced environmental exposure to lead?
The top of the absorption field gravel should be covered with what type of material?
What is a common use for lasers outside of medical applications?
Most ultraviolet radiation in sunlight is absorbed by which layer?
What is not included in the process of comprehensive community planning?
How frequently should a pool filtration system filter the entire volume of water?
In terms of safety protocols, what must workers at hazardous waste sites be informed about?
An establishment known to have imminent health hazards is not closed by the inspecting regulatory authority. This best exemplifies:
In dental x-rays, is it necessary to establish the correct exposure time for kilovoltage, milliamperage, and source-to-skin distance?
What is the most effective method of maintaining pool water quality?
Major effects on humans are caused by Los Angeles and London type smog, along with which two pollutants?
Microbial pollution travels only a short distance through which material?
Which one of the following metals is most fatal to fish when it becomes dissolved in acid waters?
What is the minimum required amount of clean outside air per minute per occupant in office space where smoking is not prohibited?
Which pesticide is derived from plants?
True or False: Radiation can only come from artificial sources.
It is estimated that at any given time, there is/are how many times more water stored underground than in all the surface streams and lakes?
When a health violation is classified as a misdemeanor, it can be more readily resolved by?
Which factor is NOT relevant when determining a safe distance between a well and a sewage disposal system?
What can stop beta particles?
Which chemical is most widely used to destroy microorganisms in water?
What is the main focus of an environmental review process?
Which pH could cause the least eye irritation?
What are the reasons for nosocomial infections in hospitals and nursing homes?
How do environmental health technicians' assignments differ from those of environmental health scientists or sanitarians?
What type of contaminants might be found in unchlorinated water supplies?
Of the following, which is classified as a compound?
Which of the following factors would LEAST contribute to the emergence of a new infectious disease?
Which is the smallest practical planning unit in regional planning?
Which of the following is not a recognized way to address an asbestos hazard?
Vector-borne encephalitidies can be transmitted directly from person to person.
In which area is saltwater intrusion into depleted aquifers becoming a significant issue?
The sensitivity of an ecosystem to acid precipitation is largely determined by the area's:
The yellow pages of the emergency response guidebook lists which of the following?
What does the abbreviation "rem" stand for?
Which method is known to allow for significant volume reduction of municipal solid wastes?
What should the objective(s) in pest control primarily include?
The majority of sulfur dioxide originates from:
Which of the following are not typically members of the infection control committee?
What is the primary purpose of the medical surveillance program in a written safety and health program?
Milk is often contaminated with sediment due to which main factor?
In case of disasters, the speed with which action may be implemented is dependent upon:
All meat and poultry plants must develop and implement a system of preventative controls known as:
At what concentration is hydrogen sulfide considered fatal?
What does glazing, silvering, or bronzing on the underside of a leaf indicate?
What should be the priority at a waste disposal facility to ensure safety and compliance?
What is the function of a footing drain?
What is the primary function of the Occupational Safety and Health Administration (OSHA)?
Is it true that lindane and malathion are excellent liquid insecticides for bedbugs because they do not stain?
The disease that is commonly associated with stone age spearhead markers and sand blast operators is:
What is a requirement for storing shucked shellfish?
Aerobic bacteria require all of the following nutrients except?
What is the required distance between the end of the water supply pipe and the sink?
What does sludge and scum accumulation in a septic tank indicate?
What organic compound classification refers to substances that do not break down easily in the environment?
Which of the following factors contributes to water hardness?
What is a common aim of solid waste management strategies?
How often should water quality testing be conducted in a public water system?
What compound has been known to cause crippling skeletal damage to cattle through contaminated vegetation?
According to the APHA-PHS Recommended Housing Maintenance and Occupancy Ordinance, who is responsible for the storage and disposal of all rubbish?
How do flies typically spread disease?
Which chemical is commonly used for pool disinfection?
What materials reflect microwaves?
Which is not a measure of water turbidity?
In emergencies, which method can be used to disinfect small quantities of water?
What is defined as actions that do not significantly affect the human environment?
According to studies, swimmers experience higher rates of illness due to which of the following?
What process reduces the final volume of waste materials?
One of the first actions an individual should take upon hearing an order for the evacuation of homes and businesses is to turn off the
Which equipment utilizes particle size selective inlets to separate particulates?
The septic tank functions as a
Which of the following is NOT a characteristic of groundwater?
A gravity flow absorption field must have materials not exceeding which maximum length?
To obtain reproducible results with a soil percolation test, it is very important to:
What is the effect of radiation absorbed by the patient when using filters?
Perhaps our single most significant source of radiation exposure is:
Which type of filter is recommended for use in small communities and rural areas?
In order to implement and enforce federal Clean Air Act requirements, states must:
An example of a surface water supply would be which of the following?
Under negligence law, what duty does a sanitarian owe to the public?
The Monitored Retrievable Storage (MRS) concept deals with which aspect?
Which act provided the federal government authority to address interstate air pollution problems?
What is the best control measure for formaldehyde air pollution in the home?
Maximum sensitivity to sound for humans is in the range of:
Which statement about inlet and outlet levels in distribution boxes is true?
Which is a correct practice regarding the storage of pesticides?
Hazardous wastes may be in a ______ form.
What is a common treatment method used to disinfect wastewater before it is discharged?
What is an essential consideration when selecting a site for a landfill?
What is a significant consequence of pesticide misuse?
Which type of substance does the Toxic Substances Control Act aim to manage?
The changing role of environmental health scientists has primarily been influenced by?
Is it believed that the hazards of low-level radiation may be worse than previously predicted?
Which property of PCBs contributes to their volatization into the atmosphere?
Which of the following is not a form of direct pest control?
What is the minimum height that a chimney should be above the highest structure of a home?
Fluoroscopy exams should ideally be conducted before which other imaging procedure?
Where in the US have the highest PCB concentrations been documented?
Which one of the following is least likely to be occupationally exposed to mercury vapors?
Which radiation exposure is considered a naturally occurring source?
What is the minimum amount of initial training required for those involved in hazardous waste operations at permitted TSD facilities?
Which subsurface formation allows groundwater contamination to travel the farthest?
Key components of the HAZWOPER program exclude
What is the role of chlorine in pool water sterilization?
A CT scanner is a combination of which two machines?
How frequently should water in wading pools be completely recirculated?
What practice is essential for preventing cross-contamination in food service environments?
In order to simplify cleanliness, window sills should be sloped toward the room and down at an angle of ______ degrees:
By the age of 65, what fraction of Americans are expected to experience hearing loss that affects communication?
True or false: The recommended depth of septic tanks and the ratio of width to length are very similar among most health departments.
Is it necessary to expose the gonads to cause genetic effects from ionizing radiation?
PCBs have been used in which systems or devices?
How often are X-ray units generally due for reinspection?
The first major recorded episode of air pollution that produced human casualties occurred in:
The reason acid rainfall is a politically-charged issue is:
From a legal standpoint, which standard is easier to enforce?
A hammering type noise often heard in a plumbing system is usually due to?
Shredded tires can be used as what type of resource?
Which of the following contributes to the effectiveness of water clarity improvement?
Backsiphonage is likely to result if:
What public health factor is of primary importance in determining the sanitary quality of recreational waters?
What is a false statement concerning sewage and disease hazards?
Volume reduction can be achieved by?
When was the first federal attempt to regulate pollutant emissions in the United States enacted?
The primary health problems of developing countries are?
Of the following, the most likely to succumb to cadmium poisoning are:
Which factor contributes least to landfill site selection?
Is household hazardous waste exempt from DOT regulations when shipped to a disposal facility?
What can excessive chlorine levels in pool water cause?
Which of the following can lead to cloudy water in spas?
The major damage that results from exposure to organic mercury is to the:
What is the estimated annual cost of foodborne illnesses in the United States?
The factor used to determine the bromine residual with the chlorine test kit (DPD) is:
Which agency is primarily responsible for overseeing biosafety in laboratory settings?
The major source of mercury emissions into the atmosphere is from:
What is the primary requirement in designing a food service facility?
The difference between a disaster and terrorism is best described as
Is a water system serving one apartment building with three apartments, housing a total of six residents considered a Public Water Supply (PWS)?
The term "radioactivity" was "coined" by which of the following individuals?
What contaminant has been associated with learning and cognitive disorders in children who drink contaminated water?
Trihalomethanes are synthetic organic chemicals primarily created
Which substances are not feasible for neutralization and detoxification with most organophosphate and carbamate insecticides?
Which of the following is not included in hazardous waste regulations?
Perhaps the most difficult of the pollutants to control is:
How often should public pool water quality be monitored?
Which disease is transmitted via tick bites?
The detention time for wastewater in a septic tank is recommended to be how long?
"R" is the symbol used for which term?
What are the two most common methods of sanitary landfill operation?
If the Green Lights program achieves its goals, which outcome is expected?
What is the pitch classification of sounds with a frequency of 30 hertz (Hz)?
The presumptive evidence of the presence of coliform in the MPN test is:
What is the main function of a sound barrier in noise control?
UVA exposure has been linked to all of the following effects except:
All of the following describe objectives used in environmental quality planning except?
Any time a MCL is exceeded, what must the NTNCWS do?
What is the classification of radiation that can cause ionization in biological tissues?
What is one of the most common reasons for the contamination of wells drilled through rock, clay, or hardpan?
What does "MPD" represent in radiation terminology?
Which pest is associated with a home sanitation issue regarding rodents?
Which phenomenon directly contributes to greenhouse gas accumulation?
Where does beef usually spoil first?
What should the grate of the main drain's area be compared to the area of the discharge pipe?
The main purpose of using baling in waste management is?
In preparing a legal action, one of the first steps a sanitarian should do is to?
What animal has recently been associated with the largest number of rabies cases?
Ozone is effective against
Which cycle describes the continuous movement of water on, above, and below the surface of the Earth?
Which is a typical characteristic of hazardous waste?
The best method to eliminate swimmer's itch is to:
What does "genetic radiation" refer to?
Which regulation is typically associated with workplace noise exposure guidelines?
When treating water with chlorine in emergency situations, the chlorine dosage should be adjusted how when water is turbid or colored?
During an emergency, the drinking water source should be:
Bacteria can travel in the digestive system of a housefly for how many weeks?
What is the best way to control deep fires in a sanitary landfill?
Are bacteria and spores considered natural sources of air pollution?
Hardness in drinking water is desirable at levels of
The energy of ionizing radiation is measured in which of the following?
What might happen if a septic tank is pumped during a wet period?
A well casing should be equipped with a vent and installed using which of the following methods?
What process is primarily responsible for the breakdown of organic materials in a landfill?
Which event caused significant economic losses due to a PCB leak from an electrical transformer?
How many days will it take to thaw a 16-pound turkey at 40°F?
Air pollution is the presence of ______ in the outside air in amounts that are injurious or detrimental to humans, animals, plants, or property.
When it is not possible to collect and examine a large number of samples for bacteria examinations, an indication of the sanitary condition of the milk can be obtained by:
What is a potential hazard associated with neutron radiation?
Which pollutant is considered most hazardous to individuals with pre-existing heart conditions?
Which of the following gases is not considered a major atmospheric gas?
Which of the following best describes a biosafety cabinet?
Which of the following is most easily identified by laboratory analysis in water contaminated by feces?
Quality control of milk includes which of the following components?
Is it true or false that exposure to all ionizing radiation is controlled solely by the use of lead shields?
Which area of the United States is projected to be most heavily affected by stricter air quality regulations?
Pasteurized milk quality is indicated by?
What is the fatal dose range of barium that may harm the nervous system and heart?
How can sources of pollutants be classified?
What is the desirable alkalinity level of water?
Which agency is primarily responsible for ensuring the safety of the nation's public water supply?
Medical uses of radiation can present a hazard through what?
Which of the following is considered biological safety equipment?
The CDC advocates a multitier approach for environmental management of lead threats. This approach has which of the following steps?
What hazard is associated with the size reduction method for solid waste?
What aspect is essential for integrated pest management?
Which of the following is an appropriate action for a witness to take when faced with an ambiguous question during a trial?
Which organization is primarily responsible for radiation regulation in the United States?
What is one advantage of using cyanuric acid in pools?
An effective pest management program focuses on which of the following?
During nuclear emergencies, which agency provides technical support?
Plants employing trickling filters, activated sludge, and spray irrigation present a possible health hazard to their employees due to
Are neutrons considered charged high-energy particles?
Which population group has raised the greatest concerns regarding exposure to asbestos fibers?
What is considered a primary concern for a successful environmental control service?
Which term describes the end results that are attainable within a program?
Trickling filters can remove 90 to 95 percent of what contaminants found in soil, water, and wastewater?
Which time of day is UV radiation exposure typically highest?
Muerto Canyon virus (MCV) is primarily carried by which animal?
Which of the following is not related to echinococcosis?
What biological effects can neutrons have?
What is a significant characteristic of rats concerning their senses?
Septic systems are most effective in which type of soil?
What is the purpose of a septic tank in the sewage treatment process?
A potential source of mercury exposure that could remain for years is from:
Each water quality class has what type of standard established?
What is the greatest potential means of reducing water demand?
What has contributed to the loss of effectiveness of malaria prevention programs in many countries?
What concentration of pollen grains per cubic meter of air is considered unlikely to produce allergic reactions?
What is considered the primary cause of disease resulting from general environmental exposure?
Catalytic converters work to reduce all of the following except:
Which statement is true regarding background radiation?
Which disease is not typically associated with mosquitoes as vectors?
Which of the following is not a commonly accepted method or device to prevent backsiphonage?
A vehicle built on a chassis and having a body of not more than 8-feet wide and 32-feet long designed for travel, recreation, and vacation use is
Which of the following is NOT suggested as a reason for excess exposure to X-rays for Americans?
What factor is most likely to cause chronic water shortages?
What kind of radiation exposure is usually cumulative?
Protective equipment such as gloves for workers in contamination risk areas must be?
The term 'cooties' commonly refers to which type of infestation?
A yellow to brownish black stain observed in a sediment test is an indication of what?
Which of the following is a factor influencing the effectiveness of incineration?
Which one of the following is not an anticipated benefit of regularly using a sunscreen of SPF 15 from infancy through age 18?
When disinfecting equipment with hot water, what should the water temperature and chlorine concentration be?
The major constituent of the photochemical oxidants is:
Which of the following diseases is transmitted through water contact?
What is the first step in a rat control program?
What kind of application is generally restricted to trained professionals?
Who investigated several proposals to establish a Quality of Life index?
The Medical Waste Tracking Act of 1988 required which agency to establish a demonstration program for tracking medical waste?
The term "rad" means what?
In a trial, what is expected of a technical person when called as a witness?
Wastewater from a water closet is categorized as:
Turbidity in water can result in which of the following issues?
Black flies are known to be disease vectors for which condition?
Which of the following factors contributes to hearing loss?
Which types of exposures should be considered when assessing radiation hazard?
What is the primary route through which asbestos enters the human body?
What is the primary method for achieving permanent results in rodent control?
The goal of the National Environmental Policy Act is to encourage harmony between:
Hydropneumatic or pressure-tank water systems are primarily suitable for what purpose?
What is the main concern regarding children and lead poisoning?
What is a common reason for the contamination of wells drilled through rock or clay?
When the whole body is irradiated, what area(s) is (are) considered the most radiosensitive?
The housefly consumes only liquids and must transform other substances to liquid before digestion. Is this statement true or false?
The minimal recommended air circulation rate for residential buildings is ____ fpm.
What is the primary mode of transmission for viral hepatitis B?
What is the primary concern regarding exposure to low-level radiation?
At what relative humidity level do excessive condensation, corrosion, and mildew typically occur?
Long-term wind data at a specific location is typically represented in what graphical form?
What is the permissible 8-hour threshold limit value for H2S?
Quantitative risk assessments usually measure human exposure through all of the following except:
Approved emergency response plans at nuclear power plant sites must be tested at least every?
When is the optimal time to apply herbicides for effectiveness?
Revenue bonds used for municipal capital improvement projects are typically paid by whom?
What is the primary function of a sand filter in water treatment?
The major controversy regarding microwave exposure injury is related to which aspect?
Mycotoxins are poisonous chemicals produced by which of the following?
Which of the following effects are not typically associated with the use of CAT scanners?
Are generic effects from radiation exposure usually immediately evident?
Which of the following areas is the least radiosensitive?
What is the most comprehensive method for controlling noise?
A negative pressure fit test for a protective mask is conducted by which method?
What is the maximum lift a centrifugal pump can handle effectively?
Halon-1301 is primarily used in what type of system?
Which of the following is NOT one of the four major causes of death among Americans?
What type of contamination is most often associated with raw poultry?
If 10 decibels is 10 times more intense than one decibel, how many times more intense is 20 decibels than one decibel?
What is the most effective practice for preventing trichinosis in people?
The end of a waste pipe should terminate at least ____ above the rim of a sink or receptacle directly connected to the drainage system.
In unsewered areas, the responsibility for water and sewer for new subdivisions is assigned to the ____.
What is the minimum temperature required for the second step of the combustion process in an incinerator?
On what basis should an inspector decide to use embargo, seizure, or condemnation?
What is a major problem faced by public health professionals when setting exposure limits to TCCD?
What is an essential consideration for waterborne disease control measures?
In the quality of life index, which of the following is NOT included in the economic environment?
Which organism is not known as an iron bacteria?
What action should be taken after a project becomes an ongoing program?
An example of an anticoagulant rodenticide is:
When controlling houseflies, roaches, and rats, what should the primary emphasis be on?
The suitability of soil for the subsurface disposal of sewage and other wastewater can be determined by a study of soil characteristics and the?
Equipment can be disinfected by being in contact with a chlorine solution for at least what duration?
The final rinse water temperature for a heat sanitizing machine dishwasher should be:
The dose or energy absorbed by an irradiated object depends on which of the following settings?
The louder the sound, the greater the:
The wastewater generated from washing out refuse bins and containers must adhere to which requirement?
Which of the following pests is primarily associated with food contamination in stored products?
A mature ragweed plant can produce up to how many pollen grains in one season?
What is produced when chlorine is added to water, primarily?
Which setting most frequently raises concerns about noise pollution?
The primary responsibility of food service management is?
HAZWOPER requirements apply to which of the following?
Which of the following is included in hazardous wastes?
What is the maximum bottom slope allowed for multiple-use pools with a depth less than 5.5 feet?
Who should prepare the plans for an area to be sewered?
Under what conditions should a clean bench be considered for use?
A potential public health problem associated with reprocessing nuclear fission material is:
At what decibel level is hearing damage likely to begin during prolonged exposure?
What is the first step in assessing the safety of a potential water system?
Mobile homes have been in general production since what year?
At what decibel level can prolonged exposure start to cause hearing damage?
Which two states were involved in the initial identification of Escherichia coli 0157:H7 as a pathogen?
The treatment system of a pool is typically recommended to be installed in which of the following flow arrangements?
Which of the following is NOT a definitive characteristic of reliability in data collection?
Which air pollutant is typically found in the highest concentrations in urban environments?
Which method is NOT effective in controlling landfill fires?
What type of sunscreens are considered to be the best?
Which of the following is considered a self-imposed health risk factor?
Sludge accumulation in a tank serving a normal home has been estimated at
When implementing hazardous waste minimization strategies, what is the most effective approach?
Where is Escherichia coli 0157:H7 primarily found?
In which areas has photochemical smog been reported?
Gamma rays come from the nucleus of an atom; x-rays come from the electrons around the nucleus. Is this statement true or false?
What type of filter is recommended for use in small communities and rural places?
Which statement concerning ozone is incorrect?
After collection, which is the correct order of steps involved in resource recovery?
Yellow jackets usually build their nests below the ground.
Centrifugal pumps vary based on the design of what component?
Standards must be scientifically supported, understandable, measurable, and?
The defense in depth concept that is used in constructing nuclear plants is characterized by what?
What substances are greatly reduced by lime coagulation, mixed media filtration, and activated carbon filtration?
What defines the distance a sound wave travels in one cycle?
Deaths of newborns caused by milk-induced diarrhea has been mainly attributed to which bacteria?
Algae development will cause all conditions except?
The first emission standards for automobiles primarily addressed the emission of which substance?
Which of the following septic-tank additives is not recommended?
The first step in implementing a biosafety program begins with what process?
Which statement is true regarding coliform organisms in drinking water?
Which one of the following crops would probably be least affected by air pollution?
Which statement regarding identical sound levels and their effect on overall sound level is true?
The high moisture content of combustion vent gases creates what issue?
The minimum recommended depth of water under a 1 meter board (1 meter high) is
What is a common effect of noise pollution on human health?
What typically determines the amount of debt a municipality can incur?
Rocky Mountain spotted fever is primarily spread by which vector?
The Emergency Planning and Community Right-to-Know-Act requires the disclosure of all the following except for which type of chemicals?
Loss of hearing that distorts or prevents low frequency sounds from being heard is categorized as:
What substance is formed when vent gases combine with high moisture inside a chimney?
Mining uranium is associated with which risk related to ionizing radiation?
A S trap is not considered legal in most state plumbing codes due to which of the following factors?
Which pollutants are examples of short-range primary pollutants?
The ability of the soil to absorb and allow water and air to pass through is called?
Under what circumstances is urine usually sterile?
Which compound would not contribute to water hardness?
Which material is mostly organic and often found in wetland areas?
What is the normal economical hauling distance to a refuse disposal site?
Which one of the following areas of the United States would be most sensitive to acid precipitation?
Which of the following diseases is caused by mites?
What is the process called when water that has fallen on land returns to the oceans?
Which type of waste would typically require special handling due to its hazardous nature?
Which component of clean, dry air has the smallest volume?
National Ambient Air Quality Standards do not apply to which of the following?
What is the most effective method for running a percolation test?
What should be prioritized before using chemical means for pest control?
Which level of government is best suited to handle the costs associated with community functions due to political boundaries?
What kind of ozone is particularly harmful to human health and the environment?
What is a correct statement regarding septic tanks?
Perhaps the most "infamous" incidence of radiation-induced illness involved:
Which organism would probably survive in a hot tub?
Which of the following best describes the consequences of exposure to genetic radiation?
When identifying hazards, what is primarily assessed to prevent employee risk?
What factor can lead to foodborne illness related to listeriosis?
The field distribution piping should be surrounded with ______ and at least 2 inches deep under the pipe.
The most satisfactory basis for measuring quantities of solid waste is by which method?
Which organisms play a lesser role in reducing sewage to "soil," liquids, and gases?
What is the primary goal of the Council on Environmental Quality?
The primary route of entry of PCBs into humans is:
What is the function of daily cover in a landfill?
The chemical used as a measure of the oxidant level of the atmosphere at any given time is:
What percentage of mobile homes are typically 65 years old or older?
What is the term for a comprehensive inspection of an establishment when it is first brought under departmental control?
What is a common method to evaluate pest populations before treatment?
Which food does not require refrigeration at 41F (5C)?
The evacuation and survival of individuals in an emergency or natural disaster depends on what factor?
In legal terminology, what is the power of condemnation also known as?
Which option is not advisable for a refuse storage area?
What tool is commonly used to measure sound levels in the environment?
A state radiation protection program may involve control of which of the following?
Are good housing and sanitation considered more effective than immunization for controlling certain diseases?
What is a general assumption when using surface waters for drinking supplies?
Oysters, soft-shell and hard-shell clams, mussels, lobsters, crabs, and shrimp belong to which group?
What is Weil's disease commonly known as?
Which of the following recognizes environmental quality and community needs?
Which of the following methods is not commonly used for landfill leachate treatment?
A relatively porous landfill earth cover allows for which of the following?
Which particulate air pollutant poses the most significant health risk to humans?
How long does it take for lice to starve in infested items when not in use?
In which situation are alternative small wastewater treatment systems considered unnecessary?
Which type of noise pollution is the most disturbing for human communities?
Proper facility lighting is essential for which aspect?
Which factor significantly increases risk when exposed to ultraviolet radiation?
Which one of the following was not initially associated with PCBs?
The biological effects of radiation on all living organisms are termed what?
Added moisture used in maceration has what effect on the handling and haul costs of solid waste?
What is the highest risk of humans acquiring the Herpesvirus simiae (B-virus)?
Hazardous waste is governed by which legislative act?
What is perhaps the most important aspect of implementing programs in biosafety?
The ideal location for a transfer station within a collection service area should be?
In emergency radiation exposure, what is a responsibility of the state?
What type of energy do microwave ovens with magnetron tubes generate?
What effect do acidic conditions have on the growth of methane-producing bacteria?
What type of air pollution is known to cause loss of chlorophyll in plants?
In the context of radiation exposure, what type of energy conversion occurs with microwave energy?
The most prudent way to safeguard public health concerning ionizing radiation is to:
Which composting method requires the least amount of land space?
Which of the following is less likely to occur in areas with effective water treatment policies?
One of the ways to recognize a well designed and properly operated pool is when you find the water at the time of inspection to be
The dose-response relationship of a toxic substance depends on all of the following except the:
Which route of entry is most effective for pesticide absorption in small children?
What characteristic of chlorofluorocarbons initially attracted industry to their use?
What disease should a healthy milk herd be free from?
Employers must develop a program to inform which groups about potential exposure during hazardous waste operations?
What is the desirable retention time for presettling reservoirs to eliminate turbidity before treatment?
What is the minimum detention time recommended for septic tanks?
How long can some pathogenic organisms survive in heat to freezing moist soil?
How often should commercial septic tanks be inspected for cleaning?
The primary purpose of the Hazard Analysis and Critical Control Point (HACCP) system is to:
What is the most hazardous category of nuclear emergency?
Muriatic acid is a weak solution of:
How is giardiasis USUALLY transmitted to others?
What thermochemical process converts complete organic solids in the absence of added oxygen?
Which one of the following is true?
What type of exposure is primarily a risk for acquiring the B-virus?
Which chemical has been deemed most effective for controlling ragweed?
The major concern related to ultraviolet radiation within humans is primarily with:
Why is it important to control weeds in the growing season?
Lakes that are clean, high in dissolved oxygen, deep, and receiving few nutrients are classified as?
What does an environmental impact statement provide?
Which factor is most critical in protecting groundwater from contamination?
Which disease is primarily transmitted by blackflies?
Under which conditions should a pesticide operator wear a respirator?
Which agency is tasked with evaluating environmental quality in relation to national policies?
Which factor significantly influences the design of a community’s waste disposal system?
Can particulates larger than 10 microns penetrate easily into the respiratory tract?
In urban areas, what is a common source of non-point noise pollution?
Landfill sites should be located at least how far from streams, lakes or other surface bodies of water?
Is exposure to radiation categorized as acceptable in all medical applications?
What is the primary risk associated with fleas as parasites of rodents?
Which would not be considered an appropriate use for a completed landfill?
What conditions seem to facilitate the proliferation of dust mites?
A comprehensive water supply study must include what essential component?
Which of the following is NOT a tool for a planning board's enforcement?
Which of the following products is not a traditional formaldehyde air pollution source?
______ involves the chemistry, physics, and dynamics of the atmosphere and its direct effects on earth's surface.
A primary pollutant is defined as:
What is the optimal filtration rate for a diatomite filter?
Which of the following is NOT a function of pool filters?
Which of the following is a common vector for the transmission of foodborne diseases?
The federal-state program designed to ensure a safe and clean milk supply is known as what?
Which two insect parasites of rodents transmit disease to humans?
A joist is used:
What type of racks should be used in refrigerators to allow circulation of cold air?
What factors influence the proper disinfection of water using chlorine?
The majority of damage from X-rays during fetal development is primarily to which system?
Occupational risk of lead poisoning is most significant among which professionals?
What is considered the most significant long-term effect of dioxin exposure?
The presence of bacteria responsible for typhoid fever in a public water supply could be traced to?
To make raw milk safe for drinking in an emergency, how should it be treated?
Do both female and male mosquitoes feed exclusively on blood?
The Council on Environmental Quality was established by which title?
Do actual amounts of radiation exposure received vary with altitude, background, and medical practices?
Eastern equine encephalitis is classified as what type of disease?
What is the half-life of Carbon 14?
Which of the following would be classified as a non-transient, non-community water system (NTNCWS)?
In sandy soil, how far can sewage organisms typically travel?
What is the first product of the decomposition of organic matter that indicates "fresh pollution"?
How is a young lake typically classified?
Shucked shellfish must be stored at what temperature or less?
Which category accounts for the majority of the world's water use?
Malignant melanoma is primarily related to which condition?
What does the term "sanitation" primarily refer to in the context of environmental health?
What does a high MPN (Most Probable Number) indicate in water testing?
What temperature should the final rinse water achieve for effective sanitizing in a heat sanitizing warewashing machine?
Exposure to even moderate amounts of ultraviolet radiation can be dangerous for which of the following individuals?
According to the Resource Conservation and Recovery Act (RCRA), how must hazardous household waste be disposed?
What must be done to minimize risks associated with hazardous waste site operations?
A hydraulic ram is used to elevate water. What powers hydraulic rams?
The written safety and health program must incorporate which of the following components?
Which of the following substances is NOT covered by the Montreal Protocol?
What is the function of a biosafety cabinet in a laboratory setting?
According to general consensus, which chemical contaminant is considered the most widespread?
Which of the following waste management practices is designed to minimize waste generation?
What is a potential environmental concern associated with landfilling?
Which type of data is essential for using an air quality model?
How long does it take to kill Clostridium botulinum spores at 230°F?
Is it unnecessary for a dental unit to have filters?
What is a key maintenance requirement for a pipeline milker?
What may result from laboratory activities that lead to personnel exposure to aerosols?
What is the most common method of applying wastewater to land?
Which international agreement marked a significant step towards protecting the ozone layer?
Hot water for sanitizing assembled equipment should not be cooler than what temperature at the end of the system?
How does the depletion of the ozone layer affect humans?
What is the best approach to take for a pigeon control program aimed at eliminating nesting places?
How frequently should residential septic tanks be inspected?
What is a dimensionless unit used to express physical intensity or sound pressure levels called?
Universal precautions refer to what practice?
Which substance is commonly used as a coagulant in water treatment?
Which of the following is NOT considered a mode of transmission?
There is no need for vaccination after flooding and other natural disasters concerning which disease?
Noise levels in a community are generally linked to which of the following factors?
In the bacteriological analysis of water, a positive completed test is definite proof that the sample of water:
What is the minimum period of time that the FDA recommends employees wash their hands and arms up to the elbow?
According to an analysis by Dever, what percentage of deaths due to accidents is attributed to environmental factors?
Which of the following is NOT a category of hazard control?
What is essential for the operation of all public pools?
Which of the following is true about ionizing radiation?
What is the amount of dissolved oxygen required in aerobic bacterial decomposition called?
True or false: Ascaris ova can survive long periods in dry environments.
According to the Council on Environmental Quality, who is required to submit an Environmental Quality Report to Congress?
Which is not considered a primary source for Giardia lamblia cysts?
According to the Federal Drug Administration, milk is considered pasteurized if it reaches what temperature?
Which factor is considered to have the most impact on a child's reading skills?
How can the condition of a wastewater system be effectively monitored?
The approved method of disposing of PCBs is:
The poison of poison ivy, oak, and sumac is an oleoresin. In which part of the plant is this oleoresin NOT found?
Why is it necessary to follow explicit procedures in an environmental health investigation ordinance?
High levels of particulate air pollution are associated with all of the following except:
What can sewer gas contain?
Which gas is primarily produced from vehicle emissions and contributes to urban smog?
The term "rem" is short for what?
The final product in biochemical oxidation of ammonia yields:
Which of the following is not typically associated with the problems of septic systems?
The only criteria gas that is colored is:
Why is it important for a business that generates hazardous waste to deal only with licensed disposal companies that have a good compliance history?
Which of the following statements is true regarding dioxins?
What is the role of skimmers in pool maintenance?
Is it true that the longer the wavelength, the lower the frequency and energy?
Inspection report forms are primarily used to achieve what?
What is the primary source of lead poisoning today?
What is a potential health concern associated with high concentrations of nitrates in drinking water?
The assessment of stakeholders' values, interests, and expectations is used primarily for what purpose?
According to the EPA, which of the following is NOT considered solid waste?
Vehicleborne, vectorborne or airborne are all examples of:
Which of the following is a key reason for performing a physical examination on food handlers?
What is the recommended backwash rate for high rate sand filters?
What factor affects the disinfecting ability of chlorine the most?
Hazardous wastes include:
Which of the following is not classified as a type of hazardous waste incinerator?
What is considered a primary method in evaluating water quality in lakes and reservoirs?
To disinfect a well, one should mix and pour directly into the well:
What type of inspections are conducted annually to assess compliance with laws and regulations?
Which factor contributes the most to an increase in neighborhood noise levels?
What is the primary function of a storm sewer?
Which gas is primarily responsible for ozone layer depletion?
Microbial pollution travels only a short distance through
Which process is essential for removing nearly all bacteria and viruses from wastewater treatment?
Which statement is true regarding transportation as a source of air pollution?
Who prepared a circular to assess "the probable impact of the proposed action on the environment"?
Escherichia coli 0157:H7 has become notable for which concerning reason?
When considering pest control, what is essential to examine before chemical applications?
The government organization that usually deals with major disasters is the
What was the average life expectancy between 26 B.C. and 395 A.D.?
How many gallons of water per day could be saved by installing water-saving plumbing devices in homes with 2-3 people?
What does "ground radiation" refer to?
What is one of the most effective means of controlling bat populations?
What do the four biosafety containment levels consist of?
What is the significance of dissolved oxygen levels in wastewater?
Which of the following does not describe the term "frequency"?
What is the most suitable method for the disposal of dead animals?
A GAP analysis evaluates what type of organizational state?
What process describes groundwater moving up through a plant's root system and exiting from the leaves?
Which pathogen is commonly associated with undercooked beef?
The primary purpose of a sanitary landfill is to?
Which statement about sound composition is accurate?
What water constituent is associated with staining plumbing and clothing dark brown or black?
By definition under RCRA hazardous wastes are ______ wastes.
What type of pollution would street dust be classified as?
Which form of chlorine is typically used for emergency disinfection of small water volumes?
Alpha particles possess which type of electric charge?
The effectiveness of disinfection in wastewater treatment depends on what factors?
Is genetic harm caused by radiation considered cumulative?
What is a common consequence of exposure to high levels of noise?
Land disposal by hazardous waste regulation includes:
Which component is essential for financing municipal capital improvements?
Which of the following is an unacceptable operating practice at a sanitary landfill?
Psittacosis/Ornithosis is primarily spread by which type of animal?
What can lead to a reduction in the quality of available groundwater?
What aspect is not covered by the Amendments to the Safe Drinking Water Act?
Which one of the following has not been shown to be associated with PCBs?
What is a primary characteristic of volcanic rocks?
Environmental health regulatory staff must be which of the following first and foremost?
When a body of water becomes acidified, the first aquatic species to disappear are generally:
What is the principal toxicity concern from substance exposure in day care settings?
Are radioactive substances used in medicine always sealed?
What impact might global warming have on rainfall patterns?
E. coli 0157:H7 is often spread by which of the following methods?
What aspect of waste management must be monitored to ensure compliance with federal regulations?
How is tularemia primarily transmitted to humans?
Large doses of radiation applied locally, as in therapy, pose which type of risk?
Which of the following gases directly enters biological processes?
Ultraviolet radiation is primarily emitted by what source?
Shredding solid waste typically reduces the volume to about what percentage of the original bulk?
What is a common issue associated with the malfunction of fluoroscopy equipment?
Which chemical is often monitored in swimming pools to ensure safety?
Backflow of nonpotable materials into a potable water system may occur due to which of the following?
Which particles have little penetrating power and are a risk only through internal exposure?
Which of the following is not a sign of bad fish?
Food that is greater than what thickness, if frozen or partially thawed, should not be cooked?
Comprehensive planning includes which of the following factors?
Which of the following diseases can be transmitted by birds?
Which of the following is not a characteristic of hazardous waste?
Which disease is transmitted through a tick bite?
What reference would you use to determine if an infectious waste that contains viable organisms is included?
Which of the following is a common symptom of foodborne illness?
What is the appropriate action for large items that are not recyclable?
In unsewered areas, who is responsible for the water and sewer systems for new subdivisions?
Which of the following options correctly describes the disposal of oil?
What is the primary purpose of comprehensive local and regional planning?
What is the recommended minimum amount of light in foot candles for food work surfaces?
What is the term for the killing of an infectious agent outside the body by chemical or physical means?
Which one of the following is least likely to occur in the US?
What is the main concern addressed by controlling backflow in potable water systems?
What is the primary method of financing municipal capital improvements?
What is the MOST common cause of bacterial meningitis in children under five years of age?
What compound is the principal scale former?
Chemical coagulation, flocculation, sedimentation, and filtration primarily remove which of the following?
When assessing the safety of a drinking water supply, which criterion is most crucial?
What is a common result of footer failures?
What is the primary regulatory body overseeing pesticide use in the United States?
For which application is lead-based paint still acceptable?
What is a good reason to paint 6-inch wide white lines along walls in a warehouse?
Indications of stream pollution may include which condition?
Which statement about routine dental X-rays for children is false?
What factor contributed to lower fallout levels from the Chernobyl disaster than expected?
Which one of the following, given present conditions, would probably produce the best results in terms of alleviating health damage from childhood exposure to lead?
Which of the following measures can reduce the impact of highway noise?
Which type of radiation is most commonly associated with medical imaging?
What does the National Sanitation Foundation (NSF) focus on in its standards?
The main risk associated with poorly maintained public pools is
Contamination in a block of ice can be identified by what characteristic in the geometric center?
The most common problem associated with the disposal of hazardous waste is:
Who is authorized to conduct air monitoring at uncontrolled hazardous waste sites?
Which process is commonly used to promote the removal of pathogens from wastewater?
Setting levels of pollutants that are intended to safeguard human health yet allow a margin of safety to protect more vulnerable segments of the population are called:
A common method to assess indoor air quality is through measurements of which type of pollutants?
In 1990, lead levels exceeded 10ug/dL in US children aged 6 and under by ____.
What is the most important step in the use of pesticides?
Which of the following is a common challenge in solid waste management?
Which material is commonly used as a target material to produce x-rays and has a high melting point and a high atomic number?
The recommended backfill depth over the absorption field is?
Additional fuel is required to incinerate refuse that contains what percentage of moisture?
What is a characteristic of all mobile home occupants?
The major cause of lead poisoning in children is primarily due to which of the following?
What type of water makes it difficult to produce suds or rinse laundry?
What is desalination?
Which of the following is not classified as a criteria pollutant?
What is the most often observed birth defect resulting from fetal exposure to X-rays?
Why is strong emphasis placed on the control of shellfish?
Nephelometric Turbidity Units (NTU) are most commonly used to measure what?
The National Pollutant Discharge Elimination System (NPDES) prohibits the discharge of pollutants into U.S. waters unless a permit is issued by
Many of the problems associated with migrant labor camps are related to
What is the recommended slope for floors in food processing plants toward drains?
What are modern incinerator furnace walls typically lined with?
The biosafety containment level appropriate for agents with moderate potential hazard is which level?
Fungal spores, bacterial and animal dander are examples of which type of pollutants?
What organization regulates the siting of nuclear facilities?
What is the recommended backfill depth over an absorption field?
The primary purpose of disinfection in water treatment is to:
At what temperature should milk be heated to ensure its safety in emergencies?
Which one of the following is the greatest genetic concern in terms of exposure to ionizing radiation?
Which disease is not related to rodents in its transmission to humans?
What is the primary way to express the strength of wastewater?
What condition can potentially lead to eye irritation in pool water?
What is the required depth of earth for the final surface of a sanitary landfill?
Another name for a mature or balanced lake is?
What type of air pollution causes bleaching of leaves in plants?
In a dry food storage room, the artificial lighting should provide a minimum of?
What factor contributed to the formation of the NEPA?
The most common source of exposure to cadmium is through:
Which health risk is associated with lead exposure in children?
What portal of entry should a field sanitarian protect to avoid contracting Lyme disease?
In swimming pool operations, what is essential for maintaining water quality?
The speed with which emergency action can be taken is largely dependent on?
What role does public awareness play in environmental health efforts?
Where should resource recovery and reduction of solid wastes ideally begin?
What are objectives considered in relation to goals?
When should bat-proofing be performed to ensure bats are not disturbed?
When developing a preliminary report, which step is least likely to be included?
Which statement about the use of septic-tank cleaners is true?
Using wastewater for irrigation of consumable plant products may present a health hazard if the water contains?
The length of exposure during radiation procedures can be affected by what variable?
Which of the following is not a type of hazardous waste incinerator?
What source do over 95% of farm families rely on for their drinking water?
How must the fresh water supply line to the pool be configured?
In an industrial environment, what provides a key part of sanitation in food processing?
The roentgen measures ionization in air caused by exposure to which of the following?
What key design factor should be considered for public pools?
Which one of the following statements is true?
Which method can be adjusted to control the furnace temperature and burning rates of an incinerator?
Mobilization of metals in acid water becomes a direct threat to human health when:
Which of the following is NOT a method for disease prevention?
Toxicity is determined by a laboratory procedure called the?
Which of the following is a symptom of pesticide exposure?
What type of tax is used to repay general obligation bonds for municipal capital improvements?
What happens to practically all foods, whether canned, pickled, cured, or dried?
Outbreaks of ______ traced to contaminated shellfish between 1900 and 1925 led to the PHS Certification of dealers involved in interstate shipment?
Which agency oversees the Emergency Planning and Community Right-to-Know Act?
What skin disease is caused by the burrowing of a mite into the skin?
What are the federal air quality standards for sulfur oxides in parts per million?
Lead poisoning is most acute for which age group?
Radiation can scatter and bounce off of which surfaces?
What is a significant concern when selecting a site for a landfill?
In an emergency, how many gallons of water should each person have per day?
Which of the following is NOT a requirement for the proper removal and disposal of asbestos?
What is an indication of a septic tank in need of cleaning?
Swimming pool water clarity is measured in terms of NTU or Nephelometric Turbidity Units. It is recommended that a level of 0.5 NTU:
Which chemical is commonly used in swimming pools to control pH levels?
What is the minimum number of men needed to supervise a landfill site, based on a rate of waste dumped per day?
Where is a termite shield typically placed?
DDT usage is banned in all countries with exceptions noted in which regions?
What should be the ideal air gap size for compliance with plumbing codes?
To protect against salmonella growth in potentially hazardous food, what is the recommended storage temperature?
A problem associated with the passage of federal air control standards was:
How long does it typically take for oysters to purge contaminating viruses and bacteria in purified seawater?
What does the stability of the atmosphere refer to?
If an employer moves employees who have reached the upper permissible level of exposure to a hazardous environment, what type of hazard control is being utilized?
Which statement about air quality standards is true?
What is the Ringlemann chart method primarily used for?
What are masonry reservoirs used in rural water supplies commonly called?
The most common occupational exposure to mercury is through:
What is the minimum distance required between the field or tiles in a treatment absorption field arrangement?
Which of the following rocks does not belong to the sedimentary classification?
What temperature range is considered satisfactory for the storage of refrigerated foods?
What does the frequency of waste collection depend on?
Which method is satisfactory for disinfecting water that is not grossly polluted?
Which chemical used for water disinfection does not leave a residual?
The average number of inspections per workday is calculated by which of the following?
Which health issue may arise from environmental exposure to asbestos?
The amount of color in water should be less than which of the following?
What major health issue is associated with uranium mining?
Which agency is typically responsible for enforcing environmental regulations?
Air pollutants may be in the form of microorganisms. This statement is:
What are the primary contaminants found in swimming pools?
What is the most effective preventive measure against poison ivy, poison oak, and poison sumac?
Which type of noise is most often regarded as annoying by residents in the community?
Which of the following is not an advantage of the land disposal of digested sewage (sludge)?
Which of the following statements about x-ray units is accurate?
What can be formed as a result of the sun's action on nitrogen oxides and hydrocarbons?
Chlorination of untreated wastewater is typically NOT effective for which of the following?
On-the-job education should start with planned, routine, intensive in-service training of?
What regulatory action is often taken to manage and mitigate PCB contamination?
What is the primary impact of prolonged exposure to high sound intensity?
Is everyone subject to natural background radiation?
What key elements must be included in an emergency response plan for uncontrolled hazardous waste sites?
The placement of the distribution box is critical for what reason?
What does the term "cumulative impact" refer to in environmental planning?
Common causes of failure of septic tank seepage field systems include improper sizing, nonsuitable soil, nonservicing, and
What is defined as an illness due to a specific infectious agent or its toxic product transmitted from a reservoir to a susceptible host?
On what basis are planning and zoning regulations primarily established?
What is the molecular state of hypochlorous acid critically affected by pH levels?
Which method is used for testing residual chlorine while minimizing interference?
As of 1975, the diseases which caused 2/3's of the deaths in the US included all but which of the following?
The primary focus of environmental health specialists in community planning is to?
What do minimum APHA-PHS standards for housing include?
Which substance should never be added to septic tanks?
If a septic tank has a garbage disposal unit, how much should the size of the tank be increased?
When should bat-proofing not be conducted to avoid trapping baby bats?
The study of the occurrence, frequency, and distribution of diseases is referred to as what?
What type of infection is listeriosis?
What is the most common contributing factor to foodborne illness?
Hormone or growth regulators, also known as systematic herbicides, are typically absorbed through which part of the plant?
The NODAK system is primarily designed to?
Which type of inspection is typically conducted prior to legal action?
The weight of temporary storage containers should not exceed which limit for convenience?
Which of the following is not considered a satisfactory solution to the problem of chemical contamination in well systems?
Which of the following is the most effective technique for ceasing operation of a noncomplying establishment?
At what dBA level should sound be considered unsafe for workers over prolonged exposure?
Should any person bitten by a bat receive antirabies therapy unless the bat is caught and found to be negative for the rabies virus?
One of the most important aspects involved in restoring a child who has been exposed to lead to good health is:
Nutrients associated with eutrophication include all of the following except?
The Consumer Product Safety Commission requires refuse bins to withstand a horizontal force of how many pounds?
Why should both county and regional-wide planning be considered for a sanitary landfill site?
Which type of pollution primarily affects visibility in urban areas?
What type of injury from microwave exposure is the best understood?
Which of the following is a primary byproduct of the biodegradation process in wastewater treatment?
What is one common type of ionizing radiation?
What is the maximum temperature a freezer unit for frozen food should maintain?
A secchi disk is used to determine:
Which one of the following is not considered a part of particulate radiation?
Which statement is true regarding garbage stands?
Who discovered X-rays?
Which of the following diseases is not transmitted by insects?
Which of the following best describes the role of erosion control in watershed management?
Which of the following hazards is evaluated by screening for Clostridium perfringes in water testing?
Which of the following is not commonly used to disinfect water?
What are the peak breeding seasons for rats in temperate zones?
What is typically included in the plans for an area to be sewered?
What products are created from the melting out of fats in garbage reduction?
Loam is composed of which of the following?
If 5000 persons were exposed to a background radiation of 0.1 rem per year, what would this represent in person-rem exposure?
What is a common requirement for landfills to reduce environmental impact?
Human disease from aerosols of wastewater is primarily related to which treatment processes?
Which unit measures the amount of light scattered by particles suspended in a water sample?
Campylobacter may be safely used in the laboratory at which biosafety level?
The most accurate estimates of sewage flow are derived from:
What is the FDA action level for aflatoxins in milk?
If a series of three consecutive water samples from one supply all showed the presence of E. coli, what is the most logical interpretation?
The most serious impact of lead in the bloodstream affects which type of tissue?
Backsiphonage may be prevented by all of the following methods except?
Which of the following is not an organophosphate pesticide?
For how long can bacteria be carried in the digestive system of a housefly?
Which of the following is not ordinarily used as a rodenticide?
What is one of the main benefits of establishing a solid waste transfer station?
Airborne exposure to asbestos fibers is most frequently linked to which of the following?
How should chlorine levels be maintained in swimming pool water?
Which component typically contributes the most to the costs associated with solid waste management?
The goal of environmental health programs should be?
Which of the following statements is true regarding bats?
Which areas are considered higher risk for radon exposure?
Which two factors are commonly used to determine soil permeability for wastewater absorption?
The housing code is best described as ____.
What would be a characteristic of total suspended particles?
The first Federal standards for occupational exposure to noise were issued by:
Is it true that the disease caused by Legionella pneumophila originated in the toilet tanks of older hotels?
Which of the following is not a system used for treatment and disposal of animal wastes?
What must be known before investigating a suitable site for a facility?
What size particles can reach the lowest parts of the lungs?
What must be done with decontamination solvents at hazardous waste sites?
What type of decomposition occurs in an established sanitary landfill?
Leaching from a garbage dump has been found to pollute wells located how far away?
In the event of a toxic spill, what is the first thing to be done?
What is the appropriate response to the potential infectious status of all patients regarding HIV?
Currently, which of the following is the largest source of methane emissions?
What significant disease do bats pose a threat to humans by carrying?
What is primarily used to determine the pitch of a sound?
The insect infestation on humans known as pediculosis is caused by which of the following?
Which sequence accurately describes the three zones of stream pollution?
What is considered to be the best single strength measure of wastewater polluted water containing degradable waste?
Stream pollution can often be indicated by which of the following?
What is the source of scombroid poisoning?
The measure that is used to determine the loudness of a sound is:
What approach should be taken for effective weed management?
According to USEPA standards, what is the required pH range for secondary treatment effluent?
Which of the following is not a primary consideration when locating a groundwater supply?
At what age does a female rat become sexually mature?
Which of the following are not major sources of sulfur dioxide pollution?
The pollutant that would most likely cause the most damage to the nervous system would be:
The type of filter that is recommended for small communities and rural places is which of the following?
Sodium fluoroacetate, also known as "1080," is the most effective fast-acting rodenticide available for use throughout the United States.
Which one of the following is a characteristic of high level nuclear wastes?
A local sewage and waste ordinance is part of which framework?
In which direction should the operation of a sanitary landfill be aligned?
What is necessary for a pure tone to be produced?
Why is burning off poisonous plants not advisable?
Which statement is true regarding the primary Drinking Water Standards?
The ratio of the energy passing through a wall, floor, or ceiling to the energy striking it is known as what?
How long should lice-infested items be stored to cause the lice to die of starvation?
Which state is frequently associated with lead poisoning due to the leaching of lead from solder into home-brewed liquor?
Which material constitutes the largest component of domestic solid waste by weight?
What is a common preventive measure against communicable diseases?
The best method to reduce diving accidents is to:
According to the APHA appraisal method, what is the minimum required sleeping area per person?
What does the term ‘malfeasance’ refer to in the context of environmental health?
What kind of pollutants does the Ringlemann chart specifically evaluate?
For effective septic tank operation, how often should cleaning be performed?
What classification of virus is primarily associated with aerosols in laboratory settings?
What is one disadvantage of improper stair riser height?
Which food type has the highest acceptable plate count of E. coli?
Is Onchocerciasis a common illness found in many developed countries?
Household hazardous waste is regulated like any other hazardous waste.
How should decontamination equipment used at a hazardous waste site be managed?
If a soil is saturated for extended periods, what is likely indicated by its coloration?
The release of genetically engineered materials to the environment is regulated by which agencies?
How long may coliform bacteria survive on soil surfaces?
What is a key environmental issue associated with the persistence of PCBs in ecosystems?
In which type of area do most cases of groundwater pollution occur?
If the fat content of milk increases by ten percent or more, the pasteurizer temperature must be increased by how much?
What is the correct sequence for washing dishes?
What indicates that a septic tank is in need of cleaning?
How are animals primarily affected by air pollutants?
Which of the following is classified as "black water"?
What is one function that filters perform in relation to radiation?
The limitation of the lift capability of a centrifugal pump is based on which factor?
What is the primary reason for regulating food establishments?
The addition of sodium bicarbonate is usually used to
At what concentration can hydrogen sulfide be fatal upon exposure?
What is the process called that involves the movement of water vapor into the atmosphere?
To assess the resources on a section of property, one should consult a person knowledgeable in which areas?
A watertight tank designed to slow down the movement of raw sewage and wastes is known as a?
Which of the following is not considered an advantage of using shredded solid waste in a landfill?
What type of herbicide are soil sterilants classified as?
Sewer gas may contain which of the following components?
What is the term for the failure to perform an official duty without sufficient excuse?
Slight, irreversible hearing loss may result for many people, from daily exposure over an 8 hour period of time to sound averaging:
When two pollutants are combined and their effects are greater than the sum of the individual effects, this is called what?
Which general human health problem has been definitively linked to exposure to dioxin?
What is a common characteristic of hazardous wastes?
What is required for an approved public swimming pool's disinfection system?
What is the main purpose of a sewage treatment plant?
An agency's general administrative plan provides the basis for?
Eradication of mosquitoes and ticks would have no effect on the epidemic of which disease?
What two factors are used to determine groundwater contamination potential from septic tanks?
A "chigger" is the larval stage of which type of organism?
Which is a recognized potential risk associated with global warming?
Does comprehensive community planning look at the total region?
When is an HACCP plan not required?
How many extra gallons of water will be required for every 1,000 new people in a community?
Which of the following statements is true regarding an inspection efficiency rating?
Which of the following best defines 'public health'?
Which step is NOT part of controlling corrosion in piping?
If properly installed, which type of flooring is considered one of the best for kitchens, dairies, and bakeries?
Which organism is most resistant to unfavorable environmental conditions and indicates past pollution?
What percentage of bacteria can primary sedimentation remove from soil, water, and wastewater?
Which is not considered a single dose rodenticide?
The wastewater from a toilet or latrine flushing is referred to as
What is the consequence of not ensuring proper equipment sanitation in food processing?
The Greenhouse Effect is intensified by increases in all the following gases except?
The prime feeding time of the Anopheles mosquito is usually around midday.
What is a significant environmental concern regarding PCBs?
What is the recommended maximum temperature for refrigerated storage of perishables?
Which agency's regulations are NOT mentioned in the compliance requirements for hazardous waste sites?
Is it true that more information is known about the effects of trace amounts of chemical carcinogens than radiation effects?
Which method is preferred for controlling sewage from watercraft?
Which of the following does not seem to be a long-term effect of childhood lead exposure?
What are the major potential entry sources of radon in a home?
Why are anticoagulant type rodenticides coated with paraffin?
Which variety of rat is most common in urban environments in the US?
Chronic low-level exposure to lead in children can lead to which of the following consequences?
What pH and temperature do oysters grow best at?
What is the major constituent of the atmosphere today?
Common deficiencies in fluoroscopy units include which of the following?
What is the risk associated with excessive exposure to poor air quality?
Which of the following is not a factor for the satisfactory operation of a septic tank/sand filter system?
What are microscopic photosynthetic plants without roots, stems, or leaves associated with water problems such as taste, odor, and filter clogging?
An action authorized by law to restrict or prevent the movement of goods for the protection of public health, safety, and welfare is called?
Which factor generally does NOT vary directly with the quantity of water used for domestic purposes?
What is a common feature of systems aimed at protecting groundwater?
An "environmental assessment" developed under NEPA is best described as?
In strategic planning, what does the term "vision" represent?
The sources of water supply are divided into which of the following major classifications?
Which of these pollutants is known for its impact on respiratory health?
Infectious Hepatitis A (HAV) is caused by which type of microorganism?
What is an important aspect of formaldehyde contamination control?
To ensure custard-filled pies are safe, to what temperature should they be cooked?
What is an essential benefit of following due process during an environmental health investigation?
Which contaminant in water is associated with methemoglobinemia?
What is the most important rule of food storage?
The presence of which element in water treatment plant effluent serves as a measure of filtration efficiency?
Which of the following is a characteristic of noise pollution?
What is the major problem associated with the desalination of water?
Which information should NOT be included in an environmental impact statement?
Which one of the following gases is potentially the most important in terms of global warming?
Is it true that a serial distribution system is considered to have disadvantages compared to distribution boxes?
Which fissionable fuel is used in all US nuclear reactors?
The amount of radiation damage in human exposure to ionizing radiation is measured in terms of:
Workers involved in waste operations at hazardous waste TSD facilities must receive at least how many hours of training before working?
What does a properly managed waste collection service aim to achieve?
What is the primary purpose of conducting reinspections?
What percentage of available chlorine is gas chlorine considered to be?
What is the purpose of a plastic ground cover in a crawl space?
What is a major obstacle to compliance with the Asbestos Hazard Emergency Response Act?
Which pollutant is associated with the phenomenon known as "photochemical smog"?
Which of the following is NOT a factor considered by the WHO health goal?
The flushometer valve is typically protected by which of the following?
Which bacteria can survive extended storage in Cheddar cheese?
What depths are typically used in the valley or ravine landfill method for "lifts"?
What is the term for the reduction of disability or dependence resulting from a disease?
Which of the following is crucial for successful septic system operation?
Improperly located wells can lead to outbreaks of which of the following illnesses?
Which statement about poliomyelitis is not true?
Which regulatory body is primarily responsible for establishing noise control measures in the workplace?
The Clean Air Act Amendments of 1990 did all of the following except:
How often should a food handler be required to undergo a physical exam to mitigate contamination risks?
If an adequate, well-sourced water supply is unavailable at a reasonable cost, what should be the next step for the site?
The primary reason for fish disappearing from bodies of water becoming acidified is:
The ban on chlorofluorocarbons was not specifically aimed at which of the following groups?
Which of the following wells is considered the most dependable source of water and is less likely to become contaminated?
What is essential for retaining competent personnel in environmental control services?
Which of the following is the least appropriate option for minimizing hazardous waste?
What is essential for the control of infectious, intestinal diseases in humans?
Which pesticide is legally allowed for use by the public in the United States?
What is the proposed benefit of a biosafety manual?
The traditional absorption field should be laid in trenches not more than how deep below the ground surface?
Which of the following statements is true regarding solid waste management?
What indicates an increase of dissolved solids due to evaporation in whirlpools and spas?
How are total suspended particles typically measured?
How much sewage do residential cesspool and septic tank soil absorption systems discharge into the ground each year?
Which of the following can negatively impact the performance of a septic tank?
A physical cross-connection is defined as:
Which one of the following is true?
What type of particles are scrubbers typically used to remove?
In valleys and ravines, which method of landfilling is deemed best?
Approximately what percentage of the original volume remains after incineration?
Does adding yeast to a new septic tank speed up digestion by a factor of 2.7?
Refuse collection frequency largely depends on the maturation time of fly eggs through larval stages. Under optimum summer temperatures, this maturation time is:
What is the effect of higher concentrations of pollutants in wastewater on public health?
The main focus of the Federal Resource Conservation and Recovery Act of 1976 (RCRA) is on which type of waste?
What is considered one of the greatest environmental issues of the late 20th century?
Why are footers important in construction?
Is marsh miasma an alternative name for the disease known as Legionella?
Ozone reduces the useful life of all of the following except?
What is the historical significance of the Montreal Protocol?
What is the recommended distance from the bottom of the trench to the groundwater table or rock?
All of the following are characteristics of an ideal shielding material for lead paint surfaces except ____.
What is the most common form of malaria?
In which decade were PCBs first synthesized?
Which of the following is an explosive component of sewer gas?
Which of the following substances is commonly used to control the growth of algae and protozoa in water?
Which of the following methods is commonly used for measuring air quality?
Should the operation of a dental unit consider radiation safety practices?
What is the primary organism identified in the fecal coliform test?
During radium therapy, medical personnel can become unnecessarily exposed while handling which item?
Revenue bonds are typically repaid by which of the following?
What happens to frequency and energy as the wavelength decreases?
Grease traps are installed for the purpose of minimizing grease in the sewer system. What is true about their effectiveness?
If temporary shelter is necessary in an emergency, what should shelter selection consider?
Which of the following is the least effective method for cadmium removal from drinking water?
What is the leading cause of mortality related to asbestos exposure?
Which of the following is NOT a requirement for hazardous waste operations?
What is the term for a statistical estimate of an oral dose of a chemical that produces a lethal effect on half of an animal population?
How is the relationship between photosynthetic rate in green plants and atmospheric carbon dioxide best described?
How many half-lives are needed to reduce the radioactivity of a radionuclide to about 1% of its original measurement?
In assessing radiation hazard, should the sum total of all exposures be considered?
A mold control program should include all of the following factors except:
Which factor significantly contributes to environmental health issues related to fossil fuels?
What is the primary purpose of implementing natural and source-reduction measures for pest control?
Pasteurization of milk products does not eliminate which of the following?
Which method is not practical for the removal of cadmium?
Effective water quality monitoring includes testing for which of the following?
Where should air pollution control be prioritized?
Individuals assigned to regulatory programs should be?
CAT scanners are primarily used to locate which of the following?
The green pages of the emergency response guidebook list which of the following?
Which of the following is not commonly associated with the term frequency?
What is the role of management in the follow-up after an environmental health inspection?
The most practical way to control hay fever is to:
Methyl bromide is primarily used as a?
Which rodenticide is also known to act as an emetic?
What is the primary characteristic that makes an isotope radioactive?
Which of the following is critical for the effectiveness of a biosafety program?
If a laboratory reports a positive coliform test on pasteurized milk, what does this indicate?
Which statement is most correct regarding facultative bacteria?
What is essential for ensuring safe recreational facilities?
If a stream's water is at 20 degrees C and has nine mg/L of oxygen, what can be inferred?
Are lead shielding devices necessary for chest or upright x-rays?
What term is used to describe toxins that attack nerves?
The only country in the world to compensate victims of air pollution is:
Communities aiming to maintain their character without overtaxing members should consider which strategies?
Letter and report writing are effective means of informing whom about a facility's problems?
What problem can arise from using inadequately processed sewage sludge?
Concerns regarding increased carbon dioxide levels primarily impact what issue?
In recent years, the largest number of rabies cases were associated with:
Which is not an essential factor in the combustion phase of an incinerator?
What is a major consequence of improper sealing of a well casing?
What is a common method for protecting against UV radiation?
The ASHRAE recommended minimal thermal standard for dwelling is ____ F at 40% humidity and an air circulation rate of 45 fpm.
Is it estimated that less than 62% of water and foodborne diseases are not reported?
Microbial pollution travels only a short distance through which of the following?
What is formed when chlorine is added to water?
Which of the following types of equipment is specifically designed to protect laboratory personnel?
Which city has a reported water concentration of asbestos ranging from 10-100 million fibers per liter?
What aspects of radiation exposure recovery are specific to certain cell types?
Which population is more susceptible to respiratory diseases?
Vegetative forms of Clostridium botulinum spores are killed in:
Are rats one of the animals most likely to carry rabies?
What is the difference between misfeasance and nonfeasance as per health standards?
Which of these methods is often used to reduce the volume of waste in landfills?
What is the most effective method to prevent subdivision complications?
In child day care centers, what is the most frequent route of disease transmission?
Which aspect is included in a sanitary survey of groundwater supplies?
Which of the following duties of state and local health agencies is intended to ensure that the public's health and welfare are protected?
What is necessary for effective public health planning?
What process describes heating air, gas, or gas mixtures to 9032F (5000C) for hazardous waste destruction?
Which of the following is NOT a common use of radiation?
An adult rat requires approximately how much food per day?
The volume of the dose from a properly sized dosing tank should be equal to?
When equipment or clothing is sent for cleaning from a hazardous waste site, what must be communicated to the off-site facility?
What factors influence the quality of surface water?
Does the prevention of deaths from a particular disease increase overall life expectancy in direct proportion to its decreased mortality?
Which type of pollutant is most associated with a heightened risk of death and disease?
The exposure of excreta or sewage on the ground surface is associated with disease transmission via which method?
The most likely cause of photochemical smog is due to:
The one of the following diseases which is caused by a virus is?
Most pesticide deaths in children and adults in the US are due to?
What compound is produced when hydrocarbons are burned?
What denotes a septic tank in need of repair related to effluent quality?
Radon cannot be reduced with which of the following devices?
Final disposal of sludge may include all of the following except:
The recommended maximum length for gravity flow absorption field system materials is how many feet?
What is required for the connection between the pool drain and the sanitary sewer?
How do sunlamps that radiate UV rays ensure user safety?
What type of absorption systems may be used in areas of unsuitable soil?
Direct filtration can produce good quality water at a lower cost if the water being treated is?
Individuals particularly susceptible to the toxic effects of cadmium are those who are deficient in:
When assessing risk in biosafety, which is the first action taken?
What is the FDA action level for aflatoxins in milk shipped in interstate commerce?
Factors that could determine the effect of radiation on the body include which of the following?
What is the term used to describe the manner in which water moves and changes form?
Parts of the country that fail to bring their pollution levels into compliance with National Ambient Air Quality Standards are called:
What personal protective equipment is recommended for pesticide application?
Which one of the following statements is false regarding microwaves?
Which of the following actions fosters better waste management practices?
Turbulence is known for being what in relation to air pollution dispersion?
The intensity of a sound wave is defined as what?
Which of the following is not a measure to protect the safety of uranium miners?
All of the following are considered ionizing radiation except:
Which gas is a known contributor to indoor air pollution?
To reduce lead in the solid waste stream, which source should a solid waste manager target as a major contributor?
When is the best time to conduct bat-proofing when bats are hibernating?
Facultative bacteria can
Methylene Blue Active Substance (MBAS) is used to identify the presence of what?
What is the purpose of using chemical disinfectants in water treatment?
Vector-borne encephalitidies have replaced malaria as the major mosquito-borne disease in North America.
What was the clinic utilization rate for diarrhea among migrant farm workers without access to water and sanitation facilities?
Which one of the following statements about cadmium is false?
What can high turbidity levels lead to in drinking water systems?
What percentage of the total cost of solid waste management is typically associated with collection cost?
What is the stance of the World Health Organization regarding the current necessity of DDT for public health?
The conversion of seawater or brackish water to fresh water is known as?
When considering water storage requirements, which of the following is not considered a recommended practice?
Asbestosis is caused by fine silicate fibers retained in the?
Asbestos is uniquely known to cause which of the following diseases?
When attempting to establish economical hauling, what factor is most important?
Historically, what was the main reason for adequate water treatment in the United States?
How often should refuse be compacted during the average work day?
Which document is required to assess the environmental impact of public projects?
Which of the following is not known as a harmful effect of lead in the human body?
Which bacterial group indicates fecal contamination or sewage pollution?
Which of the following is the more common and least expensive method of backflow control?
What is it called when stormwater and domestic sewage enter the same sewer?
Which of the following best describes the need for competent program direction?
What is the term for protecting personnel and the laboratory environment from infectious agents?
In community evaluation, which of the following is NOT typically included?
After flooding and other natural disasters, vaccination is needed for
Which type of waste requires special handling due to its hazardous nature?
Why is the use of a cesspool prohibited?
Which factor increases the chance of pollution travel?
When mixing acid and water, which procedure is correct?
What does an integrated pest management program aim to minimize?
What type of radiation hazard is primarily linked to ingestion or inhalation?
Granular activated carbon (GAC) filters are used to
Is it true or false that ozone can be formed by the action of sunlight on nitrogen oxides and hydrocarbons?
What role does consultation play in developing biosafety programs?
How are survey meters typically measured?
What was the primary focus of the Montreal Protocol?
Which method for eliminating pests does not focus on chemicals but on environmental conditions?
Domestic wastewater which passes through a sewer system to a POTW is not considered to be a:
After the absorption field has failed, which action will NOT help in repairing the field?
After milk is pasteurized, it should be rapidly cooled to below what temperature?
What is generally the cause of groundwater degradation supplied by human-generated pollutants?
Which filtration method is typically used for its efficiency in small rural water systems?
The first state to implement a motor vehicle inspection and maintenance program was:
The EPA requires that toxic waste incinerators achieve a destruction and removal rate of ______ before the material is landfilled.
Which condition is conducive to the successful operation of a septic system?
What is the Greenhouse Effect a result of?
What is the primary health risk associated with organophosphate pesticides?
Adequate highways, land-use controls, and park facilities are usually designed within the context of a ______ plan.
An arthropod-borne disease is spread by which of the following?
What health issue can exposure to formaldehyde cause?
Which substances are categorized as hazardous wastes?
What is the mosquito genus responsible for the transmission of malaria?
When do OSHA regulations, other than HAZWOPER, apply to emergency response and hazardous waste operations?
Which of the following foods is NOT at high risk for transmitting listeriosis?
Which of the following is a main precursor of acid rain?
Why are environmental impact assessments critical in urban planning?
What percentage of medical and dental X-rays do federal officials estimate to be unnecessary?
The majority of nitrogen oxide originates from:
What does the Maximum Contaminant Level (MCL) represent?
Which pollutant is a significant byproduct of fossil fuel combustion?
Are dry cotton ear plugs equally effective against noise control compared to fitted ear plugs and earmuffs?
According to the World Health Organization, approximately what percentage of the world's population breathes air that contains health-threatening levels of particulate?
Which of the following would not be considered domestic sewage?
Basal and squamous cell carcinomas are most commonly associated with exposure to which of the following?
Excreta typically is defined as containing which of the following?
Which chemical is commonly used to improve water clarity?
In microbiology, the second word of the scientific name Clostridium perfringens indicates the:
Which soil is most suitable for cover material at a landfill site?
What does the term “toxicity” refer to in relation to pesticides?
Before a drinking water sample is taken, how long should the sampling tap be flushed?
In the context of quality of life, which of the following refers to achieving a balance between economic factors and environmental well-being?
The level of atmospheric carbon dioxide can only stabilize if emissions are reduced to:
What factor primarily influences the effectiveness of wastewater treatment systems?
Which effect is generally better understood: the effects of radiation or the effects of trace chemical carcinogens?
Sensitivity to radiation is probably highest:
What is a measure of the rate at which clear water seeps out of a saturated test hole?
What is the primary vector for transmitting Rocky Mountain spotted fever?
What is the primary cause of death resulting from automobiles exhaust accumulation in garages?
Which of the following is NOT one of the four characteristics of hazardous wastes as defined by the EPA?
A major problem that is thwarting efforts to clean up the air is:
Which of the following microorganisms can cause foodborne intoxication?
Most cases of sick building syndrome can be traced to which of the following?
Which gases commonly found in water can encourage corrosion?
What is the measure of the amount of water held by a rock or soil in pores or voids, expressed as a percentage of total volume?
Rattus Rattus is also referred to as the:
What is the definition of re-refined oil?
Which meteorological elements have the most direct and significant effects on the distribution of air pollutants?
Which of the following is not classified as a man-made toxic substance?
Under what condition should food be stored in a refrigerator to prevent spoilage?
Standards for ionizing radiation exposure are designed to:
What type of hearing loss is a result of infections or trauma?
How should rubber valves and parts of milking equipment be cleaned?
Can the ingestion of a single virus particle cause infection in humans?
When conducting environmental health assessments, what type of data is essential?
Chaga's disease is also known as what?
Any excavation in clay, loam, silt, or sand deeper than how many feet should have side wall protection?
What is the preferred method for providing water and sewage services to a new subdivision?
True or false: Some animals can carry Giardia lamblia without showing signs of illness.
Which of the following is NOT a purpose of zoning regulations?
How does sedimentation affect water treatment processes?
The largest outbreak of cadmium poisoning thus far documented occurred in:
Residents of which of the following cities would probably receive the most exposure from naturally occurring radioactive minerals?
What term is used to refer to age-related hearing loss?
Which of the following has NOT been identified as a hazard from lead exposure?
Which component of a septic system is responsible for further treatment of effluent after leaving the tank?
The accumulation of a continuously emitted pollutant is inversely proportional to what factor?
What is ozone effective against in water treatment?
An Environmental Impact Statement (EIS) is required by which act when significant environmental impact is indicated?
What is the purpose of using a forward sweeping motion when collecting water samples from a stream or lake?
Why is the ozone layer considered essential for life on Earth?
What was the first national law in the United States designed to deal with noise?
What is "swimmers itch" also known as?
Aeration in water treatment is particularly beneficial for which substance?
The cause of "Mad Hatters' Disease" was traced to:
Which disease has been linked to swimming pool outbreaks?
Absorption of microwave energy by bodily tissues is largely associated with which factor?
How frequently should a septic tank in a private home typically be serviced?
Which of the following is not a method of cross-connection control?
What is the best assurance of satisfactory operation of a properly designed and constructed septic tank system?
Rattus norvegicus is commonly known by which of the following names?
If sufficient amounts of activated carbon in powdered form are used, what process removes almost all tastes and odors from water?
What is the main purpose of a decentralized wastewater treatment system?
What factor is critical in determining the lethality of radiation exposure?
What rodent sign most indicates a current infestation with rats?
In environmental planning of a rural subdivision, what basic information is crucial in determining the feasibility of individual water and sewage systems on each home site?
What is the minimum wash water temperature required in a hospital laundry?
Swimming pool water that is brownish black in color may be due to:
Which statement is correct regarding methane gas production?
Which of the following statements regarding ozone disinfection is NOT true?
Which of the following is NOT considered a primary pollutant?
Why is pyrethrum considered an important insecticide?
Which vector is commonly associated with the transmission of many diseases?
What term describes the process of a toxic substance being increasingly stored in body tissue?
The most common route of pesticide entry into the body is?
Which of the following should be part of a structured plan for inspection activities?
During which process are PCBs most likely to move through the food chain?
What is the key characteristic of enterotoxins?
For which condition has no definitive causative link with asbestos been established?
What is a common consequence of using contaminated water in food preparation?
What is the maximum allowable bather load for a pool that is 40 feet by 60 feet?
The tissues most often damaged as a result of inorganic mercury entering the body include all of the following except:
Stakeholder Focused Interactive Strategic planning aims to find what?
What is the approximate amount of residue left after incineration?
Which soil condition is most favorable for the removal of viruses?
It is recommended that a contaminated well be abandoned unless which condition is met?
A major problem associated with methyl mercury is its:
Which temperature range is considered the "danger zone" for bacterial growth in food?
Which term describes a high frequency of a disease in a specific geographic area?
A water or foodborne disease outbreak with a short incubation period is likely caused by which of the following?
Which of the following best describes civil sanctions?
Which method is typically NOT effective for controlling noise pollution?
Which one of the following is not a major source of human exposure to dioxin?
What is a primary consequence of rising sea levels?
Which of the following is NOT considered a basic principle of disease control?
Approximately how many loads per day requires one piece of refuse-compaction equipment at a landfill site?
Which of the following is not a natural topographic feature?
Which of the following diseases is commonly transmitted through the fecal/oral route?
What does the term 'rem' stand for?
What is perhaps the most important determinant of the cancer-causing potential of asbestos?
What can be recovered from refuse by burning it in a refractory lined incinerator?
Thermoduric bacteria grow best at a temperature range of:
The risk of developing an asbestos-related disease is most associated with which factor?
To enhance the accuracy of global warming predictions, what area requires more understanding?
Which of the following is a key goal of regional planning?
What contributes to the formation of the "hole in the sky" phenomenon?
Which responsibility ensures that public health and welfare are protected by health agencies?
Some studies indicate that swimmers have a higher over-all illness rate than non-swimmers:
The industries least likely to be a source of sulfur dioxide pollution are:
Why is it critical to read a pesticide label before use?
Which pest is known for being a mechanical vector of disease?
Which of the following aspects should be taken into consideration when managing household hazardous waste?
Which of the following is NOT a component of the Physical Quality of Life Index?
To mitigate health risks, which agency collaborates with local health departments?
What ensures that subdivision plans comply with environmental regulations?
What is the primary function of a home grinding system regarding garbage disposal?
What should not be done with food samples collected during a foodborne illness investigation?
Microwave ovens primarily operate using which type of energy?
What type of waste management process typically involves high temperatures for waste destruction?
What should be offered to ensure competent direction of a divisional program?
Open dumps should be considered as what?
What is the primary method for protecting individuals from radiation exposure?
Standards designed to promote human welfare by protecting agriculture crops, livestock, property and the environment in general are called:
What is the grate area requirement for the main drain to prevent dangerous suction effects?
Insecticides/pesticides may be stored in all ways except:
What should be the primary goal for hazardous waste management?
Which of the following is not commonly used as a fumigant?
Which of the following diseases is primarily caused by environmental factors?
The site control program at an uncontrolled hazardous waste site must include what element?
Which bacteria can survive cooking to appropriate levels?
What is the EPA's stream quality indicator for dissolved oxygen in stream water?
Which minerals and chemicals can cause problems in ice manufacturing?
How effective is antibiotic use in controlling disease compared to other measures?
The ideal temperature for storing most perishable foods is:
Which of the following factors helps to slow down biological activity and preserve food?
What are the three kinds of weeds generally recognized?
Which one of the following is not a potential impact of global warming?
What will cause taste and odor in water supplies?
Which type of evidence is generally considered most useful in legal settings?
Which method is commonly used to treat wastewater?
A project study is synonymous with which of the following?
Which state imposes a quarantine on mussels from May 1 to October 31?
The strategy most often used to solve sulfur dioxide emissions in close proximity to the plant that produces the emission is:
The speed of sound through a medium is dependent on which factors?
How much of a hydro pneumatic tank's volume typically consists of water?
Which of the following is NOT a condition that encourages weed growth?
According to the FDA, what is the maximum time that sunlamps radiating UV rays can operate before automatically shutting off?
Well-placed, existing solid waste collection areas are good choices for household hazardous waste collection sites.
The DPD test is commonly used for determination of:
What type of health risk is commonly associated with long-term dioxin exposure?
What type of activity report can serve most reporting needs for statistical purposes?
How are tuberculosis risks quantified in laboratory settings?
In the context of environmental health, which of the following terms best describes pollution control measures?
According to recent statistics, how does the cancer rate for inner-city residents compare to suburban residents?
What term is used for emissions that escape into the ambient air without being vented through a stack?
Who has the responsibility for internal housekeeping and monitoring all waste discharges in terms of types and quantities?
Soil containing loam will remove most of the phosphorus in sewage effluent. Is this statement True or False?
The generally prohibited swimming facility from a public health perspective is a
Which of the following is a characteristic of gravel?
Which one of the following sources of noise has been declining slightly in recent years?
What is loam primarily composed of?
Which of the following is a common deficiency regarding therapy units?
Which substance is least damaging to the stratospheric ozone layer?
Which of the following would most likely contain the highest proportion of PCBs?
Under typical operations, what primarily contributes to public exposure to ionizing radiation from nuclear power plants?
Which of the following is a key aspect of comprehensive planning?
Support of household hazardous waste management is an avenue for industries to paint themselves as community leaders and defenders of the environment.
What could result from insufficient breakdown of sludge in septic systems?
What is the term for a constant buzzing or ringing in the ears?
Which of the following can cause a color change in water often due to the decomposition of organic materials?
Which of the following would not be used as a coagulant?
A comprehensive solid waste study should include which of the following?
Which factor does NOT affect the reliability and interpretation of the soil percolation test?
Which disease is transmitted through birds and bird droppings?
The legal authority to conduct a routine environmental health inspection is granted by whom?
Which substance is known to be non-toxic to aquatic organisms and acts as a good viricide?
What is the primary reason for conducting a sanitary survey of a water system?
Which of the following is not part of the proper machine dishwashing procedure?
What is the best method for eliminating rats?
Do sound absorbing materials absorb low frequency sounds more effectively than high frequency sounds?
What do further increases in life expectancy depend on according to scientific consensus?
What property do x-rays, gamma rays, and visible light share?
For a safe living environment, housing codes aim to enforce standards that address ____.
Which of the following diseases is not typically transmitted by an insect?
For pools less than 30 feet wide with a surface area less than 1600 ft2, what is true regarding skimmers and gutters?
When mixing acid and water, what is the recommended procedure?
Feeding uncooked garbage to hogs can increase the risk of which of the following?
Which one of the following radiations is least penetrating?
What is considered the best approach for preventing respiratory diseases in vulnerable individuals?
Hazardous waste sites must be characterized prior to what event?
What does a wind rose illustrate?
How does a chimney's height affect its functionality?
What term describes the inherent capacity of a pesticide to produce injury or death?
What angle of slope requires a special engineering study according to environmental standards?
The best management for intensely radioactive isotopes that have very short half-lives is:
In an environmental control statistical report, what does "total man-days expended" refer to?
True or false: House mice are known carriers of Lymphocytic choriomeningitis.
What is the backwash rate for conventional, rapid, and high rate sand filters?
When aerobic synthesis occurs in a landfill, what stage of decomposition is the refuse expected to be in?
Which of the following is not included among the nine contaminant groups?
The gas causing the distinct "rotten egg" odor in many water sources is
What is essential to achieve reproducible results in a soil perc test?
Which of the following is vital for assessing a water supply source's safety?
What strategy is considered effective in addressing climate change?
What does exposure to formaldehyde primarily irritate?
Septage is best defined as?
Which rodent is considered the primary reservoir for hantavirus?
The type of sanitary landfill that should be developed on essentially flat land sited in dry areas is:
Lice are known to require what to survive?
Following a disaster, raw food should be:
From which type of rocks is an abundant supply of groundwater typically yielded?
What is a common health concern related to dioxins?
What should be done to prevent radon infiltration in buildings?
Which of the following is used to properly seal a drilled well to prevent contamination of the water supply?
In terms of septic system maintenance, what is usually recommended to reduce environmental impact?
Domestic community water system pumps should deliver average daily water demand to storage tanks within what time frame?
Which of the following diseases is uniquely categorized as unlike the others in terms of epidemiology?
Examples of thermal destruction processes in addition to incineration are
A soil which is mottled brown and red indicates what condition?
Man-made organic compounds that degrade very slowly are known as?
What is the primary cause of indoor air quality problems?
Which one of the following is most affected by acid rain?
Oysters grow best in water with a salinity of?
What is the proper procedure for dealing with broken glassware found in contamination risk areas?
In which situation would you most likely find PAM?
What type of radiation do lasers emit?
How far off the floor should dry stored goods be kept to prevent contamination?
Which material is commonly effective at eliminating beta radiation?
In distillation, what is the starting temperature for heating sea water to the boiling point?
Which concept emphasizes the long-term productivity of an area?
In terms of avoiding acid rainfall, in which of the areas would it be best to live?
What is the primary purpose of land-use controls in community planning?
What measurement is used to quantify the dose of radiation absorbed by people?
Under FIFRA, all pesticides must be classified by what manner?
What is the purpose of disinfection or chlorination of sewage effluent?
Where was the "hole in the sky" first discovered?
A stud is a unit of building construction that is intended as a:
Which of the following is least important when reducing sewage to gases?
Which of the following would not be as likely to be contracted bathing at a beach?
At what parts per million of sulfur oxide is community air quality classified as moderate?
Is radon an alpha emitter with daughter decay products that include alpha, beta, and gamma emitters?
Which of the following is considered a disadvantage of the shredded solid waste landfill method?
Which of the following is a common way to control pests in urban environments?
What hazard is primarily posed by an etiological agent?
What type of inversion develops during the night with clear skies and light winds?
When burned, which fuel source emits the highest amount of carbon dioxide?
Large items that are not salvaged should be?
Which method of mosquito control is not very effective for nuisance prevention?
Which combination represents commonly acceptable refuse disposal and treatment methods?
Which of the following is a method by which recreational waters may be contaminated?
What condition occurs when absorbed daytime heat is rapidly released into space, causing surface air temperature to drop below that of overlying air?
Why are fluorocarbons in the atmosphere a concern?
What is the federal agency that regulates food additives?
Which of the following is commonly considered when classifying waste as hazardous?
Is it true that PCB waste collected from households is exempt from disposal regulations?
What is the determining factor for the minimum number of water samples required for bacteriological analysis in public water supplies according to the Safe Drinking Water Act?
An administrative process of measuring and analyzing results in relation to specific goals, objectives, aims, or targets is?
What describes general obligation bonds in a municipality?
What is considered the primary source of public exposure related to nuclear power production?
Which environmental condition contributes to increased mosquito populations?

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