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_20180122_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.
 - 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.
 - 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 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 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 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
Mon
Jan 22
Tue
Jan 23
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
57 
Bishop Paiute Tribe
aqi not available
aqi not available
57 
Chester
aqi not available
aqi not available
58 
Chico
Good
aqi not available
31 
Death Valley National Park
29
aqi not available
31 
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
15 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
21 
Imperial Valley
50
42
71 
Joshua Tree National Park
aqi not available
aqi not available
34 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
32
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
29
25 
        Anza Vly
59
50
35 
        Banning
37
38
18 
        Barstow
37
37
        Big Bear Lake
37
37
 
        C San Bernardino M
38
37
16 
        C San Bernardino-1
72
55
26 
        C San Bernardino-2
68
53
26 
        Capistrano Vly
59
53
16 
        Central Coastal
55
55
16 
        Central LA CO
38
29
77 
        Central Orange-1
57
55
44 
        Central Orange-2
55
50
44 
        Coachella Vly
55
55
15 
        E San Bernardino
53
33
15 
        E San Fernando Vly
28
25
40 
        E San Gabriel V-1
59
42
29 
        E San Gabriel V-2
61
38
29 
        East Riverside CO
42
37
 
        Hemet/San Jacinto
38
37
25 
        Hesperia
42
29
15 
        Lake Elsinore
70
57
35 
        Metro Riverside CO
74
57
65 
        N Coastal Orange
55
55
77 
        NW Coastal LA
37
33
77 
        NW San Bernardino
68
50
26 
        Norco/Corona
70
63
44 
        North Orange CO
68
55
44 
        Perris Vly
53
46
25 
        Phelan
55
42
28 
        Pomona Walnut Vly
70
50
        S Central LA CO
29
29
        S San Gabriel Vly
38
33
 
        SW Coastal LA
38
46
77 
        SW San Bernardino
72
59
26 
        Saddleback Vly
53
46
44 
        San Gabriel Mts
55
33
26 
        Santa Clarita Vly
38
38
18 
        South Coastal LA
33
38
77 
        Southeast LA CO
57
53
44 
        Temecula Vly
63
53
35 
        Trona
38
29
12 
        Twentynine Palms
37
37
        Victorville
42
37
        W San Bernardino M
55
38
26 
        W San Fernando Vly
29
29
40 
        W San Gabriel Vly
46
29
54 
Mammoth Lakes
aqi not available
aqi not available
10 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
23 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
18 
        Davenport
Good
aqi not available
 
        Hollister
Good
Good
11 
        King City
Good
Good
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
        Salinas
Good
Good
28 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
28 
        Scotts Valley
Good
Good
 
        Watsonville
Good
aqi not available
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
12 
Paradise
Good
aqi not available
40 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
59 
Quincy
aqi not available
aqi not available
60 
Red Bluff
aqi not available
aqi not available
 
Redding
71
aqi not available
55 
Sacramento Area
        Arden Arcade-Del Paso Manor
42
50
60 
        Auburn
29
42
31 
        Colfax
29
42
35 
        Cool
aqi not available
aqi not available
 
        Davis
33
50
56 
        Elk Grove
42
50
59 
        Folsom
42
50
26 
        Lincoln
29
42
 
        Natomas
42
50
 
        North Highlands
42
50
23 
        Placerville
aqi not available
aqi not available
32 
        Rio Vista
33
50
76 
        Roseville-Rocklin
29
42
21 
        Sacramento
42
50
53 
        Sloughhouse
42
50
48 
        Vacaville
33
50
49 
        Woodland
33
50
56 
San Diego Area
        San Diego Coast
Moderate
aqi not available
50 
        San Diego Foothills
Good
aqi not available
35 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
41 
San Francisco Area
        Concord
50
Good
31 
        Fairfield
50
Good
27 
        Fremont
46
Good
31 
        Livermore
50
Good
31 
        Napa
53
Moderate
32 
        Oakland
53
Moderate
34 
        Redwood City
46
Good
19 
        San Francisco
53
Moderate
24 
        San Jose
53
Moderate
23 
        San Rafael
53
Moderate
26 
        Santa Rosa
53
Moderate
27 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
76
Moderate
62 
        Fresno
72
Moderate
72 
        Hanford
74
Moderate
        Madera
62
Moderate
        Merced
66
Moderate
58 
        Modesto
70
Moderate
67 
        Stockton
72
Moderate
60 
        Visalia
68
Moderate
50 
San Luis Obispo County
        Atascadero
43
46
        Carrizo Plains
37
39
        Morro Bay
35
34
23 
        Nipomo
39
33
27 
        Paso Robles
42
44
        Red Hills
38
40
31 
        San Luis Obispo
34
33
15 
Santa Barbara County
        Carpinteria
Good
aqi not available
39 
        Gaviota Coast
Good
aqi not available
34 
        Goleta
Good
aqi not available
13 
        Lompoc
Good
aqi not available
32 
        Paradise Road
Good
aqi not available
19 
        Santa Barbara
Moderate
aqi not available
27 
        Santa Maria
Good
aqi not available
13 
        Santa Ynez
Good
aqi not available
10 
Santa Rosa Rancheria
aqi not available
aqi not available
21 
Sequoia/Kings Canyon National Parks
35
aqi not available
28 
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
61 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
Ventura County Area
        Ojai
40
40
42 
        Oxnard
40
40
 
        Piru
40
40
24 
        Simi Valley
40
40
36 
        Thousand Oaks
40
40
21 
Western Nevada County
45
40
49 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
26 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
34
aqi not available
38 
Yuba City/Marysville
Good
aqi not available
39 
Yucca Vly
42
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.