In ozone near nonattainment areas, ozone levels have come close but have not violated the ozone standard set by the Environmental Protection Agency. In Flexible Attainment Regions, the communities have arranged to implement voluntary ozone-reducing measures to maintain compliance with the national ozone standard. Levels in ozone nonatttainment areas violate the standard. Motor vehicles release more than 50 percent of the hazardous air pollutants. Motor vehicles release up to 90 percent of the carbon monoxide found in urban air.
Automobiles are a major source of air pollution in most areas.
As our roads become more congested, our quality of life, the land we live on, and the air we breathe need to be protected. Everyone in the country has an important part to play. Discuss with your class some ways you, as individuals, can help reduce air pollution. Driving fewer miles will help reduce air pollution. Get regular engine tune-ups and car maintenance checks.