In what way does traffic contribute to air pollution?

In what way does traffic contribute to air pollution?

• A. Traffic reduces levels of harmful gases
• B. Vehicles emit harmful exhaust gases
• C. Traffic has no correlation with air quality
• D. Traffic primarily benefits air quality

Answer: (B)

Vehicles emit harmful exhaust gases, which is a significant contributor to air pollution. When engines operate, they burn fossil fuels, leading to the release of various pollutants such as carbon monoxide, nitrogen oxides, volatile organic compounds, and particulate matter. These gases can lead to health problems in humans and contribute to environmental issues like smog and acid rain. The process of combustion in vehicles does not reduce harmful gases; rather, it actively produces them, exacerbating air quality issues, especially in urban areas with high traffic volumes. Additionally, traffic congestion can increase the amount of time vehicles spend idling, further increasing emissions. This relationship between traffic and air pollution is well-documented in studies of urban environments, where areas with heavy vehicle movement often have elevated levels of toxic compounds in the air compared to those with less traffic.

Vehicles emit harmful exhaust gases, which is a significant contributor to air pollution. When engines operate, they burn fossil fuels, leading to the release of various pollutants such as carbon monoxide, nitrogen oxides, volatile organic compounds, and particulate matter. These gases can lead to health problems in humans and contribute to environmental issues like smog and acid rain.

The process of combustion in vehicles does not reduce harmful gases; rather, it actively produces them, exacerbating air quality issues, especially in urban areas with high traffic volumes. Additionally, traffic congestion can increase the amount of time vehicles spend idling, further increasing emissions. This relationship between traffic and air pollution is well-documented in studies of urban environments, where areas with heavy vehicle movement often have elevated levels of toxic compounds in the air compared to those with less traffic.