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_20180123_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
Jan 23
Wed
Jan 24
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
59 
Bishop Paiute Tribe
aqi not available
aqi not available
59 
Chester
aqi not available
aqi not available
38 
Chico
Good
Good
26 
Death Valley National Park
28
aqi not available
29 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
Great Basin Air District
aqi not available
aqi not available
32 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
33 
Imperial Valley
42
53
40 
Joshua Tree National Park
aqi not available
aqi not available
36 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
31
aqi not available
36 
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
 
Los Angeles Area
        Antelope Vly
29
33
35 
        Anza Vly
50
46
31 
        Banning
38
37
38 
        Barstow
37
37
12 
        Big Bear Lake
37
37
 
        C San Bernardino M
37
37
35 
        C San Bernardino-1
55
59
38 
        C San Bernardino-2
53
59
38 
        Capistrano Vly
53
42
28 
        Central Coastal
55
42
28 
        Central LA CO
29
57
66 
        Central Orange-1
55
42
34 
        Central Orange-2
50
46
34 
        Coachella Vly
55
46
38 
        E San Bernardino
33
50
31 
        E San Fernando Vly
25
50
43 
        E San Gabriel V-1
42
50
60 
        E San Gabriel V-2
38
42
60 
        East Riverside CO
37
38
 
        Hemet/San Jacinto
37
42
31 
        Hesperia
29
38
28 
        Lake Elsinore
57
57
13 
        Metro Riverside CO
57
61
35 
        N Coastal Orange
55
46
66 
        NW Coastal LA
33
57
66 
        NW San Bernardino
50
57
37 
        Norco/Corona
63
50
35 
        North Orange CO
55
42
34 
        Perris Vly
46
61
31 
        Phelan
42
50
36 
        Pomona Walnut Vly
50
42
16 
        S Central LA CO
29
50
11 
        S San Gabriel Vly
33
50
 
        SW Coastal LA
46
61
66 
        SW San Bernardino
59
59
37 
        Saddleback Vly
46
42
34 
        San Gabriel Mts
33
50
60 
        Santa Clarita Vly
38
46
33 
        South Coastal LA
38
61
66 
        Southeast LA CO
53
66
34 
        Temecula Vly
53
46
31 
        Trona
29
38
17 
        Twentynine Palms
37
37
12 
        Victorville
37
38
23 
        W San Bernardino M
38
50
37 
        W San Fernando Vly
29
50
43 
        W San Gabriel Vly
29
42
43 
Mammoth Lakes
aqi not available
aqi not available
32 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
15 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
23 
        Davenport
Good
Good
 
        Hollister
Good
Good
30 
        King City
Good
Good
14 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
        Salinas
Good
Good
30 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
10 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
12 
Paradise
Good
Good
27 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
37 
Quincy
aqi not available
aqi not available
23 
Red Bluff
aqi not available
aqi not available
 
Redding
50
aqi not available
71 
Sacramento Area
        Arden Arcade-Del Paso Manor
80
80
55 
        Auburn
55
53
17 
        Colfax
55
53
21 
        Cool
aqi not available
aqi not available
 
        Davis
61
72
20 
        Elk Grove
80
80
30 
        Folsom
80
80
15 
        Lincoln
55
53
 
        Natomas
80
80
 
        North Highlands
80
80
        Placerville
aqi not available
aqi not available
28 
        Rio Vista
61
72
        Roseville-Rocklin
55
53
12 
        Sacramento
80
80
22 
        Sloughhouse
80
80
27 
        Vacaville
61
72
15 
        Woodland
61
72
30 
San Diego Area
        San Diego Coast
Good
aqi not available
25 
        San Diego Foothills
Good
aqi not available
40 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
31 
San Francisco Area
        Concord
50
42
39 
        Fairfield
50
42
30 
        Fremont
42
34
55 
        Livermore
50
42
27 
        Napa
57
50
39 
        Oakland
61
46
53 
        Redwood City
42
34
55 
        San Francisco
61
46
43 
        San Jose
55
46
64 
        San Rafael
57
50
43 
        Santa Rosa
57
50
24 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
64
Moderate
62 
        Fresno
78
Moderate
60 
        Hanford
85
Moderate
15 
        Madera
62
Moderate
15 
        Merced
66
Moderate
59 
        Modesto
76
Moderate
48 
        Stockton
70
Moderate
52 
        Visalia
59
Moderate
61 
San Luis Obispo County
        Atascadero
36
33
24 
        Carrizo Plains
30
33
28 
        Morro Bay
33
34
30 
        Nipomo
43
41
51 
        Paso Robles
36
33
24 
        Red Hills
35
35
22 
        San Luis Obispo
35
35
43 
Santa Barbara County
        Carpinteria
Good
Good
32 
        Gaviota Coast
Good
Good
34 
        Goleta
Good
Good
29 
        Lompoc
Good
Good
66 
        Paradise Road
Good
Good
27 
        Santa Barbara
Good
Good
46 
        Santa Maria
Good
Good
18 
        Santa Ynez
Good
Good
14 
Santa Rosa Rancheria
aqi not available
aqi not available
30 
Sequoia/Kings Canyon National Parks
36
aqi not available
35 
South Lake Tahoe
aqi not available
aqi not available
19 
Tahoe City area
aqi not available
aqi not available
Truckee
aqi not available
aqi not available
56 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
23 
Ventura County Area
        Ojai
40
40
28 
        Oxnard
40
40
 
        Piru
40
40
40 
        Simi Valley
40
40
36 
        Thousand Oaks
40
40
33 
Western Nevada County
40
45
40 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
15 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
33
aqi not available
38 
Yuba City/Marysville
Good
aqi not available
39 
Yucca Vly
29
38
 
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.