Which statement is true regarding transportation as a source of air pollution?

Transportation is indeed a significant source of air pollution, making the statement true. The transportation sector, which includes road traffic, air travel, shipping, and railways, emits various pollutants into the atmosphere. These pollutants include nitrogen oxides (NOx), particulate matter (PM), carbon monoxide (CO), and volatile organic compounds (VOCs), all of which can have harmful effects on air quality and public health.

The combustion of fossil fuels in vehicles produces these emissions, contributing not only to local air pollution but also to greenhouse gas emissions and climate change. Furthermore, transportation-related air pollution can lead to respiratory and cardiovascular diseases in humans, making it a crucial area of concern for environmental health specialists.

In summary, acknowledging transportation as a source of air pollution is important for developing strategies aimed at reducing emissions, enhancing air quality, and protecting public health.