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_20180220_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
Tue
Feb 20
Wed
Feb 21
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
40 
Bishop Paiute Tribe
aqi not available
aqi not available
19 
Chester
aqi not available
aqi not available
25 
Chico
Good
Good
32 
Death Valley National Park
34
36
39 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
17 
Great Basin Air District
aqi not available
aqi not available
40 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
62 
Imperial Valley
35
50
42 
Joshua Tree National Park
aqi not available
aqi not available
41 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
36
34
38 
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
10 
Los Angeles Area
        Antelope Vly
46
33
40 
        Anza Vly
33
50
43 
        Banning
29
46
43 
        Barstow
28
37
38 
        Big Bear Lake
28
37
 
        C San Bernardino M
46
37
36 
        C San Bernardino-1
46
53
41 
        C San Bernardino-2
46
55
41 
        Capistrano Vly
33
42
44 
        Central Coastal
46
46
44 
        Central LA CO
33
46
38 
        Central Orange-1
29
42
37 
        Central Orange-2
42
42
37 
        Coachella Vly
46
50
44 
        E San Bernardino
46
55
 
        E San Fernando Vly
29
50
38 
        E San Gabriel V-1
29
46
34 
        E San Gabriel V-2
46
46
34 
        East Riverside CO
28
29
 
        Hemet/San Jacinto
29
38
43 
        Hesperia
20
37
38 
        Lake Elsinore
38
50
43 
        Metro Riverside CO
55
61
41 
        N Coastal Orange
46
38
19 
        NW Coastal LA
33
38
41 
        NW San Bernardino
46
50
36 
        Norco/Corona
46
50
40 
        North Orange CO
38
38
37 
        Perris Vly
38
37
43 
        Phelan
29
38
41 
        Pomona Walnut Vly
37
50
31 
        S Central LA CO
25
50
33 
        S San Gabriel Vly
25
50
 
        SW Coastal LA
38
33
41 
        SW San Bernardino
21
59
36 
        Saddleback Vly
29
46
44 
        San Gabriel Mts
21
38
39 
        Santa Clarita Vly
46
38
39 
        South Coastal LA
29
42
31 
        Southeast LA CO
38
33
37 
        Temecula Vly
33
50
43 
        Trona
28
29
40 
        Twentynine Palms
37
37
38 
        Victorville
28
29
40 
        W San Bernardino M
29
37
36 
        W San Fernando Vly
29
46
38 
        W San Gabriel Vly
25
50
39 
Mammoth Lakes
aqi not available
aqi not available
14 
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
35 
        King City
Good
Good
37 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
38 
        Salinas
Good
Good
38 
        San Lorenzo Valley
Moderate
Moderate
 
        Santa Cruz
Good
Good
34 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
23 
Paradise
Good
Good
37 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
22 
Quincy
aqi not available
aqi not available
11 
Red Bluff
aqi not available
aqi not available
 
Redding
aqi not available
aqi not available
31 
Sacramento Area
        Arden Arcade-Del Paso Manor
80
89
31 
        Auburn
53
57
33 
        Colfax
53
57
34 
        Cool
aqi not available
aqi not available
 
        Davis
53
74
34 
        Elk Grove
80
89
32 
        Folsom
80
89
33 
        Lincoln
53
57
 
        Natomas
80
89
 
        North Highlands
80
89
31 
        Placerville
aqi not available
aqi not available
36 
        Rio Vista
53
74
19 
        Roseville-Rocklin
53
57
28 
        Sacramento
80
89
32 
        Sloughhouse
80
89
31 
        Vacaville
53
74
31 
        Woodland
53
74
34 
San Diego Area
        San Diego Coast
Good
Good
42 
        San Diego Foothills
Good
Good
43 
        San Diego Mesa and Inland Valley
Good
Good
44 
San Francisco Area
        Concord
50
42
30 
        Fairfield
50
42
34 
        Fremont
42
46
31 
        Livermore
50
42
31 
        Napa
57
61
30 
        Oakland
55
59
33 
        Redwood City
42
46
31 
        San Francisco
55
59
26 
        San Jose
46
50
35 
        San Rafael
57
61
31 
        Santa Rosa
57
61
34 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
50
57
42 
        Fresno
40
57
36 
        Hanford
46
46
36 
        Madera
33
50
36 
        Merced
33
57
33 
        Modesto
38
42
34 
        Stockton
34
46
31 
        Visalia
38
42
36 
San Luis Obispo County
        Atascadero
39
43
37 
        Carrizo Plains
35
36
36 
        Morro Bay
35
35
38 
        Nipomo
39
45
91 
        Paso Robles
39
43
40 
        Red Hills
36
37
34 
        San Luis Obispo
36
37
38 
Santa Barbara County
        Carpinteria
Good
Good
49 
        Gaviota Coast
Good
Good
41 
        Goleta
Good
Good
37 
        Lompoc
Good
Good
44 
        Paradise Road
Good
Good
40 
        Santa Barbara
Good
Good
42 
        Santa Maria
Good
Good
38 
        Santa Ynez
Good
Good
39 
Santa Rosa Rancheria
aqi not available
aqi not available
38 
Sequoia/Kings Canyon National Parks
40
39
39 
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
48 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
36 
Ventura County Area
        Ojai
50
50
42 
        Oxnard
40
40
42 
        Piru
40
40
40 
        Simi Valley
40
40
40 
        Thousand Oaks
40
40
39 
Western Nevada County
40
40
34 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
68 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
36
37
38 
Yuba City/Marysville
Good
Moderate
28 
Yucca Vly
20
29
 
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.