Sources of air pollution such as automobiles, motorcycles, trucks, off-road vehicles, boats and airplanes. See also: Stationary Sources. For more information, please go to our mobile sources portal page
California Air Resources Board ARB (California Environmental Protection Agency), glossary of air pollution terms, Sacramento, CA, USA 2013. http://www.arb.ca.gov/html/gloss.htm, (Air Pollut - Amer) {594}