AIR QUALITY ADVISORIES

Please click on the air district you are interested in to view their webpage for any current air quality advisories.

California Air Districts	Counties Covered
Amador County APCD	Amador County
Antelope Valley AQMD	Eastern Los Angeles County
Bay Area AQMD	San Francisco Bay: Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, southwestern Solano, and southern Sonoma counties
Butte County AQMD	Butte County
Calaveras County APCD	Calaveras County
Colusa County APCD	Colusa County
Eastern Kern County APCD	Eastern Kern County
El Dorado County AQMD	El Dorado County
Feather River AQMD	Sutter and Yuba counties
Glenn County APCD	Glenn County
Great Basin Unified APCD	Alpine, Mono and Inyo counties
Imperial County APCD	Imperial County
Lake County AQMD	Lake County
Lassen County APCD	Lassen County
Mariposa County APCD	Mariposa County
Mendocino County AQMD	Mendocino County
Modoc County APCD	Modoc County
Mojave Desert AQMD	San Bernardino County’s High Desert and Riverside County’s Palo Verde Valley
Monterey Bay ARD	Monterey, San Benito, and Santa Cruz counties
North Coast Unified AQMD	Humboldt, Del Norte and Trinity counties
Northern Sierra AQMD	Nevada, Sierra and Plumas counties
Northern Sonoma County APCD	Northern Sonoma County
Placer County APCD	Placer County
Sacramento Metropolitan AQMD	Sacramento County
San Diego County APCD	San Diego County
San Joaquin Valley APCD	San Joaquin, Stanislaus, Merced, Madera, Fresno, Kings, Tulare and the San Joaquin Valley Air Basin portion of Kern counties
San Luis Obispo County APCD	San Luis Obispo County
Santa Barbara County APCD	Santa Barbara County
Shasta County AQMD	Shasta County
Siskiyou County APCD	Siskiyou County
South Coast AQMD	Large areas of Los Angeles, Orange County, Riverside and San Bernardino counties, including the Coachella Valley
Tehama County APCD	Tehama County
Tuolumne County APCD	Tuolumne County
Ventura County APCD	Ventura County
Yolo-Solano AQMD	Yolo County and the northeast portion of Solano County, including Vacaville, Dixon and Rio Vista