Air Resources Board California map with district    
California District and Ozone Monitoring Site Directory

The State is divided into Air Pollution Control Districts (APCD) and Air Quality Management Districts (AQMD), which are also called air districts.  These agencies are county or regional governing authorities that have primary responsibility for controlling air pollution from stationary sources.  The following is an alphabetical listing of

  Alphabetical Listing of "California Districts and Monitoring Sites"  
|A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Select the specific letter of the alphabet corresponding to the district of interest.  Or scroll down the screen to find the desired district or monitoring site.  To view summary data for a district, or monitoring site within a district, click on the corresponding name.
Districts   Monitoring Sites
Amador County APCD Jackson-Clinton Road
Antelope Valley APCD Lancaster-W Pondera Street
Bay Area AQMD Bethel Island Road
  Concord-2975 Treat Blvd
  Fairfield-Bay Area AQMD
  Fremont-Chapel Way
  Gilroy-9th Street
  Hayward-La Mesa
  Livermore-Old 1st Street
  Los Gatos
  Mountain View-Cuesta
  Napa-Jefferson Avenue
  Oakland-Alice Street
  Pittsburg-10th Street
  Redwood City
  Richmond-13th Street
  San Francisco-Arkansas Street
  San Jose-4th Street
  San Jose-935 Piedmont Road
  San Jose-W San Carlos Street
  San Leandro-County Hospital
  San Martin-Murphy Avenue
  San Pablo-El Portal
  San Rafael
  Santa Rosa-5th Street
  Sonoma-1st Street
  Vallejo-304 Tuolumne Street
Butte County AQMD Chico-Manzanita Avenue
Calaveras County APCD San Andreas-Gold Strike Road
Colusa County APCD Colusa-Fairgrounds
  Colusa-Sunrise Blvd
El Dorado County APCD Cool-Highway 193
  Placerville-Gold Nugget Way
  South Lake Tahoe-Sandy Way
Feather River AQMD Pleasant Grove-4 miles SW
  Sutter Buttes-S Butte
  Yuba City-Almond Street
Glenn County APCD Willows-E Laurel Street
Great Basin Unified APCD Bishop-Short Street
  Death Valley Natl Monument
  Mammoth Lakes-Gateway HC
Imperial County APCD Calexico-East
  Calexico-Ethel Street
  Calexico-Grant Street
  El Centro-9th Street
  Niland-English Road
  Westmorland-W 1st Street
Kern County APCD Boron-26965 Cote Street
  Mojave-923 Poole Street
  Tehachapi-Jameson Road
Lake County AQMD Lakeport-Lakeport Blvd
Mariposa County APCD Jerseydale - 6440 Jerseydale
  Yosemite National Park-Wawona Valle
  Yosemite Natl Park-Turtleback Dome
Mendocino County AQMD Ukiah-E Gobbi Street
  Willits-899 S Main Street
Mojave Desert AQMD Barstow
  Flash Mountain
  Hesperia-Olive Street
  Joshua Tree-National Monument
  Phelan-Beekley Road & Phelan Road
  Quartzite Mountain
  Shadow Mountain
  Trona-Athol and Telegraph
  Twentynine Palms-Adobe Road #2
  Victorville-Armagosa Road
Monterey Bay Unified APCD Carmel Valley-Ford Road
  Hollister-Fairview Road
  King City-750 Metz Road
  Monterey-Silver Cloud Court
  Pinnacles National Monument
  Salinas-Natividad Road #2
  Santa Cruz-2544 Soquel Avenue
  Santa Cruz-Bostwick Lane
  Scotts Valley-Scotts Valley Drive
  Scotts Valley-Vine Hill
  Watsonville-Airport Boulevard
North Coast Unified AQMD Gasquet-Airport
  Redwood Natl Park-Requa
Northern Sierra AQMD Grass Valley-Litton Building
  Quincy-N Church Street
  Truckee-Fire Station
  White Cloud Mountain
Northern Sonoma County APCD Healdsburg-Municipal Airport
Placer County APCD Auburn-Dewitt-C Avenue
  Colfax-City Hall
  Rocklin-Rocklin Road
  Roseville-N Sunrise Blvd
Sacramento Metro AQMD Elk Grove-Bruceville Road
  Folsom-City Corporation Yard
  Folsom-Natoma Street
  North Highlands-Blackfoot Way
  Sacramento-3801 Airport Road
  Sacramento-Del Paso Manor
  Sacramento-Earhart Drive
  Sacramento-T Street
San Diego County APCD Alpine-Victoria Drive
  Camp Pendleton
  Chula Vista
  Del Mar-Mira Costa College
  El Cajon-Redwood Avenue
  Escondido-E Valley Parkway
  Oceanside-Mission Avenue
  Otay Mesa-Paseo International
  San Diego-12th Avenue
  San Diego-Overland Avenue
San Joaquin Valley Unified APCD Arvin-Bear Mountain Blvd
  Bakersfield-5558 California Avenue
  Bakersfield-Golden State Highway
  Clovis-N Villa Avenue
  Crows Landing NAS-Fire Station
  Fresno-1st Street
  Fresno-Drummond Street
  Fresno-Sierra Skypark #2
  Hanford-S Irwin Street
  Madera-Health Dept #2
  Madera-Pump Yard
  Maricopa-Stanislaus Street
  Merced-S Coffee Avenue
  Modesto-14th Street
  Modesto-Rover 14th Street
  Oildale-3311 Manor Street
  Sequoia National Park-Lookout Point
  Sequoia Natl Park-Ash Mountain #1
  Sequoia Natl Park-Giant Forest
  Sequoia Natl Park-Lower Kaweah
  Shafter-Walker Street
  Shaver Lake - Perimeter Road
  Stockton-E Mariposa
  Stockton-Hazelton Street
  Tracy-24081 Patterson Pass Road
  Tracy-24371 Patterson Pass Road
  Turlock-S Minaret Street
  Visalia-N Church Street
  Wilsonia-Grant Grove
San Luis Obispo County APCD Atascadero-Lewis Avenue
  Grover City-Lesage Drive
  Morro Bay
  Nipomo-Guadalupe Road
  Nipomo-South Wilson Street
  Nipomo-Teft & Pomeroy Streets
  Paso Robles-Santa Fe Avenue
  San Luis Obispo-Marsh Street
Santa Barbara County APCD Battles-Betteravia Road
  Carpinteria-Gobernador Road
  El Capitan Beach
  Exxon Site 10-UCSB West Campus
  Gaviota-GTC Site A
  Gaviota-GTC Site B
  Gaviota-GTC Site C
  Jalama Beach
  Las Flores Canyon #1
  Lompoc-S H Street
  Paradise Road-Los Padres National F
  Point Conception-Lighthouse
  Santa Barbara-W Carillo Street
  Santa Maria-Broadway
  Santa Rosa Island
  Santa Ynez-Airport Road
  Vandenberg Air Force Base-Pt Arguel
  Vandenberg Air Force Base-STS Power
  Vandenberg Air Force Base-Watt Road
Shasta County AQMD Anderson-North Street
  Lassen Volcanic Natl Park-Manzanita
  Redding-Health Dept Roof
Siskiyou County APCD Yreka-Foothill Drive
South Coast AQMD Anaheim-Harbor Blvd
  Banning-South Hathaway Street
  Burbank-W Palm Avenue
  Costa Mesa-Mesa Verde Drive
  Diamond Bar-E Copley Drive
  El Toro
  Fontana-Arrow Highway
  Hemet-State Street
  Indio-Jackson Street
  La Habra
  Lake Elsinore-W Flint Street
  Lake Gregory
  Los Angeles-North Main Street
  Mount Baldy, Mount Baldy Road
  North Long Beach
  Palm Springs-Fire Station
  Pasadena-S Wilson Avenue
  Pico Rivera
  San Bernardino-4th Street
  Santa Clarita-County Fire Station
  West Los Angeles-VA Hospital
Tehama County APCD Red Bluff-Oak Street
  Red Bluff-Walnut Street
  Tuscan Butte
Tuolumne County APCD Five Mile Learning Center
  Sonora-Barretta Street
  Yosemite National Park-Camp Mather
Ventura County APCD El Rio-Rio Mesa School #2
  Ojai-1768 Maricopa Highway
  Ojai-Ojai Avenue
  Piru-2 miles SW
  Simi Valley-Cochran Street
  Thousand Oaks-Moorpark Road
  Ventura County-W Casitas Pass Road
  Ventura-Emma Wood State Beach
Yolo-Solano AQMD Davis-UCD Campus
  Vacaville-Elmira Road
  Woodland-Gibson Road
  Woodland-Sutter Street

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This page last revised on March 26, 1999

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