air quality

Resources:

Environmental Protection Agency
Committed to protecting the natural environment.
http://www.epa.gov/

South Coast Air Quality Management District
Smog control agency for all or portions of Los Angeles, Orange, Riverside and San Bernardino Counties. Smog reports and pollution history, news, rules, regulations, programs for businesses.
http://www.aqmd.gov/

Bay Area Air Quality Management District
The BAAQMD (District) is the regional, government agency that regulates sources of air pollution within the nine San Francisco Bay Area Counties.
http://www.baaqmd.gov/