What is the purpose of conducting air monitoring at hazardous waste sites?

The purpose of conducting air monitoring at hazardous waste sites encompasses several essential functions that are critical to ensuring the health and safety of workers and the surrounding environment.

First, air monitoring aids in the selection of engineering controls. By measuring the concentration and types of airborne contaminants present at a site, decisions can be made regarding necessary engineering controls such as ventilation systems or barriers that can reduce exposure.

Secondly, it assists in determining work practices. Understanding the air quality and the amount of contaminants in the air informs site managers and safety personnel about safe operational procedures and methods to minimize worker exposure during the handling of hazardous materials.

Lastly, air monitoring is vital for the proper selection of personal protective equipment (PPE). The information gathered from air samples can help identify what types of PPE are necessary, ensuring that workers are equipped with the appropriate gear to protect their health from identified airborne hazards.

Therefore, conducting air monitoring is not only a singular function but a comprehensive approach that integrates engineering controls, work practices, and PPE selection, thereby addressing multiple facets of worker safety at hazardous waste sites. This holistic role is why the correct answer encompasses all of these components.