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_20180120_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
Sat
Jan 20
Sun
Jan 21
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
36 
Bishop Paiute Tribe
aqi not available
aqi not available
19 
Chester
aqi not available
aqi not available
37 
Chico
Good
Good
21 
Death Valley National Park
34
aqi not available
36 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
19 
Great Basin Air District
aqi not available
aqi not available
93 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
Imperial Valley
148
51
69 
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
35 
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
38
21
35 
        Anza Vly
55
50
36 
        Banning
46
46
35 
        Barstow
37
28
33 
        Big Bear Lake
37
25
 
        C San Bernardino M
46
46
36 
        C San Bernardino-1
61
50
45 
        C San Bernardino-2
63
50
45 
        Capistrano Vly
57
50
31 
        Central Coastal
55
50
31 
        Central LA CO
63
63
47 
        Central Orange-1
61
55
31 
        Central Orange-2
63
59
31 
        Coachella Vly
50
50
38 
        E San Bernardino
50
50
31 
        E San Fernando Vly
59
53
47 
        E San Gabriel V-1
61
55
67 
        E San Gabriel V-2
59
50
67 
        East Riverside CO
46
28
 
        Hemet/San Jacinto
57
29
36 
        Hesperia
46
25
37 
        Lake Elsinore
55
68
31 
        Metro Riverside CO
61
72
30 
        N Coastal Orange
55
55
19 
        NW Coastal LA
63
59
37 
        NW San Bernardino
70
50
45 
        Norco/Corona
55
70
31 
        North Orange CO
63
63
34 
        Perris Vly
59
57
36 
        Phelan
50
38
38 
        Pomona Walnut Vly
66
50
29 
        S Central LA CO
55
46
31 
        S San Gabriel Vly
53
46
 
        SW Coastal LA
68
63
37 
        SW San Bernardino
68
42
45 
        Saddleback Vly
46
50
31 
        San Gabriel Mts
50
50
67 
        Santa Clarita Vly
50
42
35 
        South Coastal LA
68
61
31 
        Southeast LA CO
66
61
31 
        Temecula Vly
61
50
36 
        Trona
42
28
32 
        Twentynine Palms
29
37
33 
        Victorville
46
28
32 
        W San Bernardino M
50
38
45 
        W San Fernando Vly
57
50
47 
        W San Gabriel Vly
61
55
34 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
32 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
29 
        Davenport
Good
aqi not available
 
        Hollister
Good
Good
28 
        King City
Good
Good
25 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
28 
        Salinas
Good
Good
30 
        San Lorenzo Valley
Good
Moderate
 
        Santa Cruz
Good
Good
30 
        Scotts Valley
Good
Good
 
        Watsonville
Good
aqi not available
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
93 
Paradise
Good
Good
35 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
54 
Quincy
aqi not available
aqi not available
15 
Red Bluff
aqi not available
aqi not available
 
Redding
71
71
90 
Sacramento Area
        Arden Arcade-Del Paso Manor
50
80
36 
        Auburn
46
59
31 
        Colfax
46
59
33 
        Cool
aqi not available
aqi not available
 
        Davis
46
61
28 
        Elk Grove
50
80
21 
        Folsom
50
80
27 
        Lincoln
46
59
 
        Natomas
50
80
 
        North Highlands
50
80
20 
        Placerville
aqi not available
aqi not available
26 
        Rio Vista
46
61
        Roseville-Rocklin
46
59
15 
        Sacramento
50
80
18 
        Sloughhouse
50
80
20 
        Vacaville
46
61
31 
        Woodland
46
61
26 
San Diego Area
        San Diego Coast
Good
Moderate
37 
        San Diego Foothills
Good
Good
34 
        San Diego Mesa and Inland Valley
Moderate
Moderate
37 
San Francisco Area
        Concord
50
42
28 
        Fairfield
50
42
30 
        Fremont
42
33
27 
        Livermore
50
42
26 
        Napa
53
53
40 
        Oakland
57
55
30 
        Redwood City
42
33
26 
        San Francisco
57
55
35 
        San Jose
46
50
31 
        San Rafael
53
53
29 
        Santa Rosa
53
53
24 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
38
Good
27 
        Fresno
31
Good
28 
        Hanford
29
Good
29 
        Madera
28
Good
22 
        Merced
23
Good
19 
        Modesto
24
Good
25 
        Stockton
29
Good
21 
        Visalia
33
Good
53 
San Luis Obispo County
        Atascadero
31
38
35 
        Carrizo Plains
35
36
27 
        Morro Bay
33
34
30 
        Nipomo
57
40
32 
        Paso Robles
32
38
35 
        Red Hills
35
36
25 
        San Luis Obispo
32
33
31 
Santa Barbara County
        Carpinteria
Good
Good
58 
        Gaviota Coast
Good
Good
31 
        Goleta
Good
Good
31 
        Lompoc
Good
Good
37 
        Paradise Road
Good
Good
31 
        Santa Barbara
Moderate
Moderate
35 
        Santa Maria
Good
Good
28 
        Santa Ynez
Good
Good
30 
Santa Rosa Rancheria
aqi not available
aqi not available
26 
Sequoia/Kings Canyon National Parks
37
aqi not available
69 
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
29 
Ventura County Area
        Ojai
40
40
36 
        Oxnard
40
40
 
        Piru
40
40
53 
        Simi Valley
40
40
34 
        Thousand Oaks
40
40
35 
Western Nevada County
45
40
46 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
27 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
36
aqi not available
32 
Yuba City/Marysville
Moderate
Moderate
21 
Yucca Vly
46
25
 
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.