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_20180223_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
Feb 23
Sat
Feb 24
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
41 
Bishop Paiute Tribe
aqi not available
aqi not available
22 
Chester
aqi not available
aqi not available
59 
Chico
Good
Good
27 
Death Valley National Park
34
33
42 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
23 
Great Basin Air District
aqi not available
aqi not available
41 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
32 
Imperial Valley
100
53
52 
Joshua Tree National Park
aqi not available
aqi not available
44 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
32
31
42 
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
11 
Los Angeles Area
        Antelope Vly
33
37
40 
        Anza Vly
42
46
44 
        Banning
46
38
43 
        Barstow
37
37
41 
        Big Bear Lake
37
28
 
        C San Bernardino M
33
33
44 
        C San Bernardino-1
53
50
43 
        C San Bernardino-2
53
46
43 
        Capistrano Vly
38
46
44 
        Central Coastal
33
46
44 
        Central LA CO
42
42
45 
        Central Orange-1
50
50
35 
        Central Orange-2
42
46
35 
        Coachella Vly
50
50
48 
        E San Bernardino
46
38
43 
        E San Fernando Vly
33
38
45 
        E San Gabriel V-1
46
42
45 
        E San Gabriel V-2
42
38
45 
        East Riverside CO
37
33
 
        Hemet/San Jacinto
28
37
44 
        Hesperia
33
33
41 
        Lake Elsinore
50
55
42 
        Metro Riverside CO
55
61
57 
        N Coastal Orange
29
42
33 
        NW Coastal LA
38
42
43 
        NW San Bernardino
50
50
34 
        Norco/Corona
42
50
38 
        North Orange CO
42
50
41 
        Perris Vly
46
53
44 
        Phelan
42
42
43 
        Pomona Walnut Vly
46
46
32 
        S Central LA CO
29
38
31 
        S San Gabriel Vly
33
38
 
        SW Coastal LA
38
50
43 
        SW San Bernardino
53
50
34 
        Saddleback Vly
33
42
44 
        San Gabriel Mts
38
33
44 
        Santa Clarita Vly
33
33
39 
        South Coastal LA
29
46
35 
        Southeast LA CO
50
55
35 
        Temecula Vly
42
50
44 
        Trona
33
33
44 
        Twentynine Palms
28
37
41 
        Victorville
37
33
43 
        W San Bernardino M
50
42
44 
        W San Fernando Vly
33
42
45 
        W San Gabriel Vly
42
46
44 
Mammoth Lakes
aqi not available
aqi not available
35 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
32 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
36 
        Davenport
Good
Good
 
        Hollister
Good
Good
34 
        King City
Good
Good
37 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
37 
        Salinas
Good
Good
37 
        San Lorenzo Valley
Moderate
Moderate
 
        Santa Cruz
Good
Good
36 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
14 
Paradise
Good
Good
40 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
66 
Quincy
aqi not available
aqi not available
 
Red Bluff
aqi not available
aqi not available
 
Redding
aqi not available
51
27 
Sacramento Area
        Arden Arcade-Del Paso Manor
53
80
31 
        Auburn
38
53
35 
        Colfax
38
53
45 
        Cool
aqi not available
aqi not available
 
        Davis
33
57
35 
        Elk Grove
53
80
32 
        Folsom
53
80
36 
        Lincoln
38
53
 
        Natomas
53
80
 
        North Highlands
53
80
29 
        Placerville
aqi not available
aqi not available
34 
        Rio Vista
33
57
13 
        Roseville-Rocklin
38
53
27 
        Sacramento
53
80
33 
        Sloughhouse
53
80
33 
        Vacaville
33
57
23 
        Woodland
33
57
37 
San Diego Area
        San Diego Coast
Good
Moderate
45 
        San Diego Foothills
Good
Good
44 
        San Diego Mesa and Inland Valley
Good
Moderate
43 
San Francisco Area
        Concord
38
35
31 
        Fairfield
38
35
37 
        Fremont
40
33
31 
        Livermore
38
35
23 
        Napa
42
53
48 
        Oakland
38
50
31 
        Redwood City
40
33
30 
        San Francisco
38
50
30 
        San Jose
36
34
34 
        San Rafael
42
53
43 
        Santa Rosa
42
53
33 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
46
42
39 
        Fresno
50
50
38 
        Hanford
44
46
34 
        Madera
46
46
33 
        Merced
46
42
32 
        Modesto
46
50
35 
        Stockton
46
42
31 
        Visalia
50
42
36 
San Luis Obispo County
        Atascadero
38
40
39 
        Carrizo Plains
37
36
36 
        Morro Bay
38
36
40 
        Nipomo
52
55
86 
        Paso Robles
39
40
40 
        Red Hills
37
37
38 
        San Luis Obispo
37
38
39 
Santa Barbara County
        Carpinteria
Good
Moderate
49 
        Gaviota Coast
Good
Good
43 
        Goleta
Good
Good
39 
        Lompoc
Good
Good
44 
        Paradise Road
Good
Good
41 
        Santa Barbara
Good
Good
43 
        Santa Maria
Good
Good
52 
        Santa Ynez
Good
Good
41 
Santa Rosa Rancheria
aqi not available
aqi not available
31 
Sequoia/Kings Canyon National Parks
38
39
32 
South Lake Tahoe
aqi not available
aqi not available
21 
Tahoe City area
aqi not available
aqi not available
Truckee
aqi not available
aqi not available
54 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
 
Ventura County Area
        Ojai
40
45
43 
        Oxnard
40
40
40 
        Piru
40
45
41 
        Simi Valley
40
45
40 
        Thousand Oaks
40
45
41 
Western Nevada County
37
37
35 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
31 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
36
36
38 
Yuba City/Marysville
Moderate
Moderate
42 
Yucca Vly
33
33
 
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.