California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170323_ca_nv.jpg Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
 - https://files.airnowtech.org/airnow/today/cur_aqi_ca_nv.jpg Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
AQI Animation - https://files.airnowtech.org/airnow/today/anim_aqi_ca_nv.gif Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
 
AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
Action DayAction Day
 
State Air Quality Resources
Amador County Air Pollution Control District
American Lung Association (ALA) of California
Antelope Valley Air Quality Management District
BAAQMD Spare the Air 2002
Bay Area Air Quality Management District (BAAQMD)
Butte County Air Pollution Control District
California Air Resources Board (CARB)
California Environmental Protection Agency
California Environmental Protection Agency - Contact Us
Colusa County Air Pollution Control District
El Dorado County Air Quality Management District
Feather River Air Quality Management District
Glenn County Air Pollution Control District
Kern County Air Pollution Control District
Mendocino County Air Quality Management District
Mojave Desert Air Quality Management District
Monterey Bay Unified Air Pollution Control District
North Coast Unified Air Quality Management District
Northern Sierra Air Quality Management District
Placer County Air Pollution Control District
Sacramento Metro Air Quality Management District
Sacramento Metropolitan Air Quality Management District
San Diego County Air Pollution Control District
San Joaquin Valley Air Pollution Control District
San Luis Obispo County Air Pollution Control District
Santa Barbara County Air Pollution Control District
Shasta County Air Quality Management District
South Coast Air Quality Management District
Ventura County Air Pollution Control District
Yolo-Solano Air Quality Management District
Click on the city name for more detailed information.

printable summary
FORECAST CURRENT
AQI
Thu
Mar 23
Fri
Mar 24
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
29 
Bishop Paiute Tribe
aqi not available
aqi not available
29 
Chester
aqi not available
aqi not available
 
Chico
Good
Good
35 
Death Valley National Park
44 
aqi not available
43 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
60 
Greeley Hill
aqi not available
aqi not available
Gridley
Good
Good
19 
Imperial Valley
45 
61 
43 
Joshua Tree National Park
aqi not available
aqi not available
42 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
38 
aqi not available
37 
Laytonville
aqi not available
aqi not available
 
Leggett
aqi not available
aqi not available
 
Lone Pine Paiute-Shoshone Reservation
aqi not available
aqi not available
18 
Los Angeles Area
        Antelope Vly
37 
37 
34 
        Anza Vly
42 
46 
38 
        Banning
46 
46 
 
        Barstow
37 
46 
36 
        Big Bear Lake
46 
46 
 
        C San Bernardino M
46 
46 
 
        C San Bernardino-1
66 
63 
36 
        C San Bernardino-2
59 
59 
36 
        Capistrano Vly
42 
46 
 
        Central Coastal
42 
38 
 
        Central LA CO
46 
53 
38 
        Central Orange-1
42 
50 
 
        Central Orange-2
53 
46 
 
        Coachella Vly
50 
67 
 
        E San Bernardino
55 
55 
 
        E San Fernando Vly
42 
42 
 
        E San Gabriel V-1
57 
59 
 
        E San Gabriel V-2
53 
55 
 
        East Riverside CO
37 
37 
 
        Hemet/San Jacinto
55 
53 
38 
        Hesperia
46 
37 
41 
        Lake Elsinore
59 
61 
 
        Metro Riverside CO
70 
66 
 
        N Coastal Orange
42 
42 
 
        NW Coastal LA
42 
42 
38 
        NW San Bernardino
61 
63 
36 
        Norco/Corona
57 
66 
 
        North Orange CO
50 
50 
 
        Perris Vly
66 
61 
 
        Phelan
46 
46 
44 
        Pomona Walnut Vly
59 
59 
 
        S Central LA CO
38 
38 
 
        S San Gabriel Vly
38 
38 
 
        SW Coastal LA
46 
42 
 
        SW San Bernardino
55 
63 
36 
        Saddleback Vly
37 
37 
 
        San Gabriel Mts
50 
50 
37 
        Santa Clarita Vly
42 
46 
37 
        South Coastal LA
50 
46 
 
        Southeast LA CO
53 
55 
 
        Temecula Vly
50 
55 
38 
        Trona
37 
37 
37 
        Twentynine Palms
46 
46 
36 
        Victorville
37 
37 
38 
        W San Bernardino M
46 
50 
36 
        W San Fernando Vly
46 
46 
 
        W San Gabriel Vly
46 
53 
 
Mammoth Lakes
aqi not available
aqi not available
22 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
 
        Davenport
Good
Good
 
        Hollister
Good
Good
 
        King City
Good
Good
 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
34 
        Salinas
Good
Good
34 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
60 
Paradise
Good
Good
29 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
13 
Red Bluff
aqi not available
aqi not available
 
Redding
33 
aqi not available
39 
Sacramento Area
        Arden Arcade-Del Paso Manor
42 
33 
52 
        Auburn
21 
21 
26 
        Colfax
21 
21 
32 
        Cool
aqi not available
aqi not available
 
        Davis
29 
29 
31 
        Elk Grove
42 
33 
30 
        Folsom
42 
33 
28 
        Lincoln
21 
21 
26 
        Natomas
42 
33 
        North Highlands
42 
33 
24 
        Placerville
aqi not available
aqi not available
39 
        Rio Vista
29 
29 
13 
        Roseville-Rocklin
21 
21 
24 
        Sacramento
42 
33 
52 
        Sloughhouse
42 
33 
26 
        Vacaville
29 
29 
27 
        Woodland
29 
29 
27 
San Diego Area
        San Diego Coast
50 
aqi not available
38 
        San Diego Foothills
50 
aqi not available
38 
        San Diego Mesa and Inland Valley
50 
aqi not available
37 
San Francisco Area
        Concord
41 
40 
38 
        Fairfield
41 
40 
30 
        Fremont
35 
39 
36 
        Livermore
41 
40 
32 
        Napa
42 
42 
32 
        Oakland
42 
42 
35 
        Redwood City
35 
39 
36 
        San Francisco
42 
42 
36 
        San Jose
42 
41 
33 
        San Rafael
42 
42 
34 
        Santa Rosa
42 
42 
29 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
31 
Good
27 
        Fresno
28 
Good
30 
        Hanford
28 
Good
34 
        Madera
27 
Good
30 
        Merced
27 
Good
30 
        Modesto
26 
Good
29 
        Stockton
26 
Good
26 
        Visalia
29 
Good
33 
San Luis Obispo County
        Atascadero
36 
33 
36 
        Carrizo Plains
37 
36 
35 
        Morro Bay
39 
36 
34 
        Nipomo
59 
36 
35 
        Paso Robles
37 
36 
36 
        Red Hills
36 
35 
35 
        San Luis Obispo
38 
36 
37 
Santa Barbara County
        Carpinteria
Good
aqi not available
32 
        Gaviota Coast
Good
aqi not available
32 
        Goleta
Good
aqi not available
36 
        Lompoc
Good
aqi not available
36 
        Paradise Road
Good
aqi not available
33 
        Santa Barbara
Good
aqi not available
37 
        Santa Maria
Good
aqi not available
17 
        Santa Ynez
Good
aqi not available
33 
Santa Rosa Rancheria
aqi not available
aqi not available
31 
Sequoia/Kings Canyon National Parks
45 
aqi not available
38 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
Truckee
aqi not available
aqi not available
33 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
33 
Ventura County Area
        Ojai
40 
45 
39 
        Oxnard
40 
45 
37 
        Piru
40 
45 
40 
        Simi Valley
40 
45 
39 
        Thousand Oaks
40 
45 
40 
Western Nevada County
aqi not available
aqi not available
40 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
40 
aqi not available
38 
Yuba City/Marysville
Good
aqi not available
21 
Yucca Vly
37 
37 
 
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.