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_20180121_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
Sun
Jan 21
Mon
Jan 22
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
38 
Bishop Paiute Tribe
aqi not available
aqi not available
22 
Chester
aqi not available
aqi not available
54 
Chico
Moderate
Good
35 
Death Valley National Park
31
29
36 
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
38 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Good
53 
Imperial Valley
38
50
39 
Joshua Tree National Park
aqi not available
aqi not available
39 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
31
32
43 
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
21
38
38 
        Anza Vly
50
59
44 
        Banning
46
37
38 
        Barstow
28
37
36 
        Big Bear Lake
25
37
 
        C San Bernardino M
46
38
39 
        C San Bernardino-1
50
72
36 
        C San Bernardino-2
50
68
36 
        Capistrano Vly
50
59
41 
        Central Coastal
50
55
41 
        Central LA CO
63
38
48 
        Central Orange-1
55
57
32 
        Central Orange-2
59
55
32 
        Coachella Vly
50
55
41 
        E San Bernardino
50
53
36 
        E San Fernando Vly
53
28
48 
        E San Gabriel V-1
55
59
48 
        E San Gabriel V-2
50
61
48 
        East Riverside CO
28
42
 
        Hemet/San Jacinto
29
38
44 
        Hesperia
25
42
37 
        Lake Elsinore
68
70
37 
        Metro Riverside CO
72
74
42 
        N Coastal Orange
55
55
45 
        NW Coastal LA
59
37
45 
        NW San Bernardino
50
68
35 
        Norco/Corona
70
70
34 
        North Orange CO
63
68
34 
        Perris Vly
57
53
44 
        Phelan
38
55
39 
        Pomona Walnut Vly
50
70
34 
        S Central LA CO
46
29
34 
        S San Gabriel Vly
46
38
 
        SW Coastal LA
63
38
45 
        SW San Bernardino
42
72
35 
        Saddleback Vly
50
53
41 
        San Gabriel Mts
50
55
48 
        Santa Clarita Vly
42
38
38 
        South Coastal LA
61
33
45 
        Southeast LA CO
61
57
32 
        Temecula Vly
50
63
44 
        Trona
28
38
36 
        Twentynine Palms
37
37
36 
        Victorville
28
42
36 
        W San Bernardino M
38
55
39 
        W San Fernando Vly
50
29
48 
        W San Gabriel Vly
55
46
37 
Mammoth Lakes
aqi not available
aqi not available
10 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
23 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
36 
        Davenport
Good
Good
 
        Hollister
Good
Good
33 
        King City
Good
Good
31 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
32 
        Salinas
Good
Good
41 
        San Lorenzo Valley
Moderate
Good
 
        Santa Cruz
Good
Good
41 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
Paradise
Good
Good
26 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
12 
Quincy
aqi not available
aqi not available
20 
Red Bluff
aqi not available
aqi not available
 
Redding
71
71
63 
Sacramento Area
        Arden Arcade-Del Paso Manor
80
42
56 
        Auburn
38
29
50 
        Colfax
38
29
27 
        Cool
aqi not available
aqi not available
 
        Davis
61
33
40 
        Elk Grove
80
42
46 
        Folsom
80
42
35 
        Lincoln
38
29
 
        Natomas
80
42
 
        North Highlands
80
42
24 
        Placerville
aqi not available
aqi not available
29 
        Rio Vista
61
33
40 
        Roseville-Rocklin
38
29
25 
        Sacramento
80
42
41 
        Sloughhouse
80
42
52 
        Vacaville
61
33
31 
        Woodland
61
33
51 
San Diego Area
        San Diego Coast
Moderate
Moderate
44 
        San Diego Foothills
Good
Good
40 
        San Diego Mesa and Inland Valley
Moderate
Moderate
41 
San Francisco Area
        Concord
42
50
43 
        Fairfield
42
50
48 
        Fremont
33
46
52 
        Livermore
42
50
35 
        Napa
53
53
35 
        Oakland
55
53
50 
        Redwood City
33
46
52 
        San Francisco
55
53
39 
        San Jose
50
53
31 
        San Rafael
53
53
36 
        Santa Rosa
53
53
33 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
50
76
46 
        Fresno
46
72
54 
        Hanford
42
74
34 
        Madera
42
62
34 
        Merced
46
66
53 
        Modesto
33
70
51 
        Stockton
38
72
48 
        Visalia
59
68
45 
San Luis Obispo County
        Atascadero
38
43
34 
        Carrizo Plains
36
37
32 
        Morro Bay
34
35
34 
        Nipomo
40
39
77 
        Paso Robles
38
42
36 
        Red Hills
36
38
30 
        San Luis Obispo
33
34
33 
Santa Barbara County
        Carpinteria
Good
Good
64 
        Gaviota Coast
Good
Good
35 
        Goleta
Good
Good
32 
        Lompoc
Good
Good
38 
        Paradise Road
Good
Good
31 
        Santa Barbara
Moderate
Moderate
34 
        Santa Maria
Good
Good
31 
        Santa Ynez
Good
Good
32 
Santa Rosa Rancheria
aqi not available
aqi not available
34 
Sequoia/Kings Canyon National Parks
38
35
56 
South Lake Tahoe
aqi not available
aqi not available
Tahoe City area
aqi not available
aqi not available
11 
Truckee
aqi not available
aqi not available
46 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
30 
Ventura County Area
        Ojai
40
40
36 
        Oxnard
40
40
 
        Piru
40
40
35 
        Simi Valley
40
40
37 
        Thousand Oaks
40
40
35 
Western Nevada County
40
45
44 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
21 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
36
34
31 
Yuba City/Marysville
Moderate
Good
60 
Yucca Vly
25
42
 
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.