What is the impact of CNG use on local air quality?

The use of Compressed Natural Gas (CNG) significantly improves local air quality by reducing emissions compared to traditional fossil fuels such as gasoline or diesel. CNG combustion produces lower levels of harmful pollutants, including nitrogen oxides (NOx), particulate matter (PM), and carbon dioxide (CO2). This reduction in emissions contributes to a healthier environment and can lead to better public health outcomes, especially in urban areas where air pollution is a major concern.

CNG vehicles typically generate fewer greenhouse gases, which helps mitigate climate change and improve air quality in the vicinity. This reduction is particularly notable in the case of heavy-duty vehicles, such as buses and trucks, which contribute substantially to air pollution when powered by conventional fuels. By transitioning to CNG, communities can see improved air quality, leading to fewer respiratory issues among the population and less environmental degradation.

The other options do not accurately represent the benefits of CNG usage in terms of air quality. Some suggest that CNG could potentially worsen air quality or have no impact, which is contrary to the substantial evidence highlighting the positive environmental benefits associated with it.