What other air pollutants are found in car exhaust?

Unfortunately, car exhaust contains three major air pollutants that are harmful to public health and the environment: carbon monoxide, nitrogen dioxide and particulate matter. Diesel engines tend to produce more particulate matter than regular gasoline vehicles.

Nitrogen dioxide contributes to the formation of ground-level ozone, a fourth major air pollutant that leads to smog.

Show All Answers

1. With modern emission technology and more fuel-efficient cars, why do I have to worry about a small matter like idling?
2. Every gallon of fuel burned produces about 20 pounds of carbon dioxide. How can one gallon of gas produce so much air pollution?
3. What other air pollutants are found in car exhaust?
4. How much fuel am I wasting by idling my vehicle?
5. What are the most common reasons for idling?
6. What steps can I take to minimize idling?
7. Is shutting off and restarting my vehicle hard on the engine?
8. What else should I know about idling?