California
 
Data and Forecasts courtesy of:
 

 - 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 Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170922_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
Fri
Sep 22
Sat
Sep 23
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
Bishop Paiute Tribe
aqi not available
aqi not available
Chester
aqi not available
aqi not available
28 
Chico
Good
Good
35 
Death Valley National Park
aqi not available
aqi not available
36 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
20 
Imperial Valley
46
50
42 
Joshua Tree National Park
aqi not available
aqi not available
39 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
aqi not available
aqi not available
30 
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
21 
Los Angeles Area
        Antelope Vly
57
37
40 
        Anza Vly
38
37
55 
        Banning
55
42
49 
        Barstow
46
37
41 
        Big Bear Lake
53
46
 
        C San Bernardino M
59
67
39 
        C San Bernardino-1
50
46
59 
        C San Bernardino-2
50
53
59 
        Capistrano Vly
38
37
37 
        Central Coastal
42
46
37 
        Central LA CO
57
55
56 
        Central Orange-1
29
37
39 
        Central Orange-2
42
42
39 
        Coachella Vly
67
50
39 
        E San Bernardino
50
57
40 
        E San Fernando Vly
59
42
56 
        E San Gabriel V-1
55
46
32 
        E San Gabriel V-2
59
50
32 
        East Riverside CO
38
37
 
        Hemet/San Jacinto
46
37
55 
        Hesperia
38
37
43 
        Lake Elsinore
46
50
37 
        Metro Riverside CO
59
63
42 
        N Coastal Orange
42
46
40 
        NW Coastal LA
37
38
40 
        NW San Bernardino
59
50
59 
        Norco/Corona
50
50
42 
        North Orange CO
46
37
39 
        Perris Vly
53
46
55 
        Phelan
46
42
41 
        Pomona Walnut Vly
46
42
35 
        S Central LA CO
46
29
34 
        S San Gabriel Vly
29
37
 
        SW Coastal LA
42
38
40 
        SW San Bernardino
50
37
59 
        Saddleback Vly
29
37
39 
        San Gabriel Mts
50
38
38 
        Santa Clarita Vly
55
42
38 
        South Coastal LA
29
37
40 
        Southeast LA CO
42
57
39 
        Temecula Vly
46
38
55 
        Trona
37
37
38 
        Twentynine Palms
46
37
41 
        Victorville
38
37
32 
        W San Bernardino M
46
46
59 
        W San Fernando Vly
59
66
56 
        W San Gabriel Vly
38
46
52 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
33 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
24 
        Davenport
Good
Good
 
        Hollister
Good
Good
 
        King City
Good
Good
27 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
31 
        Salinas
Good
Good
31 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
26 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
21 
Paradise
Good
Good
35 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
19 
Quincy
aqi not available
aqi not available
13 
Red Bluff
aqi not available
aqi not available
 
Redding
50
aqi not available
72 
Sacramento Area
        Arden Arcade-Del Paso Manor
41
43
56 
        Auburn
41
42
31 
        Colfax
41
42
34 
        Cool
41
42
 
        Davis
39
40
25 
        Elk Grove
41
43
24 
        Folsom
41
43
27 
        Lincoln
41
42
25 
        Natomas
41
43
 
        North Highlands
41
43
25 
        Placerville
41
42
27 
        Rio Vista
39
40
62 
        Roseville-Rocklin
41
42
23 
        Sacramento
41
43
18 
        Sloughhouse
41
43
36 
        Vacaville
39
40
33 
        Woodland
39
40
39 
San Diego Area
        San Diego Coast
Moderate
aqi not available
36 
        San Diego Foothills
Good
aqi not available
37 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
32 
San Francisco Area
        Concord
42
43
30 
        Fairfield
42
43
28 
        Fremont
37
40
55 
        Livermore
42
43
27 
        Napa
42
46
36 
        Oakland
46
46
36 
        Redwood City
37
40
55 
        San Francisco
46
46
30 
        San Jose
40
43
38 
        San Rafael
42
46
24 
        Santa Rosa
42
46
28 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
46
Good
38 
        Fresno
42
Good
30 
        Hanford
38
Good
31 
        Madera
36
Good
29 
        Merced
32
Good
35 
        Modesto
33
Good
29 
        Stockton
32
Good
22 
        Visalia
45
Good
31 
San Luis Obispo County
        Atascadero
34
37
31 
        Carrizo Plains
37
43
33 
        Morro Bay
33
34
28 
        Nipomo
57
49
50 
        Paso Robles
38
42
31 
        Red Hills
37
45
27 
        San Luis Obispo
35
37
43 
Santa Barbara County
        Carpinteria
Good
aqi not available
27 
        Gaviota Coast
Good
aqi not available
31 
        Goleta
Good
aqi not available
31 
        Lompoc
Good
aqi not available
33 
        Paradise Road
Good
aqi not available
28 
        Santa Barbara
Good
aqi not available
31 
        Santa Maria
Good
aqi not available
29 
        Santa Ynez
Good
aqi not available
28 
Santa Rosa Rancheria
aqi not available
aqi not available
31 
Sequoia/Kings Canyon National Parks
aqi not available
aqi not available
44 
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
42 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
35 
Ventura County Area
        Ojai
40
45
38 
        Oxnard
45
45
36 
        Piru
45
50
43 
        Simi Valley
50
50
39 
        Thousand Oaks
45
45
38 
Western Nevada County
35
40
42 
Willows
Good
aqi not available
44 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
aqi not available
aqi not available
32 
Yuba City/Marysville
Good
aqi not available
27 
Yucca Vly
38
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.