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_20170920_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
Wed
Sep 20
Thu
Sep 21
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
21 
Bishop Paiute Tribe
aqi not available
aqi not available
21 
Chester
aqi not available
aqi not available
48 
Chico
Good
aqi not available
30 
Death Valley National Park
aqi not available
aqi not available
36 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
29 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
30 
Imperial Valley
63
98
64 
Joshua Tree National Park
aqi not available
aqi not available
46 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
aqi not available
aqi not available
25 
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
27 
Los Angeles Area
        Antelope Vly
50
aqi not available
41 
        Anza Vly
50
aqi not available
34 
        Banning
63
aqi not available
49 
        Barstow
50
aqi not available
        Big Bear Lake
67
aqi not available
 
        C San Bernardino M
100
aqi not available
39 
        C San Bernardino-1
67
aqi not available
66 
        C San Bernardino-2
67
aqi not available
66 
        Capistrano Vly
50
aqi not available
31 
        Central Coastal
46
aqi not available
31 
        Central LA CO
53
aqi not available
67 
        Central Orange-1
46
aqi not available
56 
        Central Orange-2
53
aqi not available
56 
        Coachella Vly
67
aqi not available
42 
        E San Bernardino
67
aqi not available
27 
        E San Fernando Vly
57
aqi not available
65 
        E San Gabriel V-1
66
aqi not available
33 
        E San Gabriel V-2
61
aqi not available
33 
        East Riverside CO
50
aqi not available
 
        Hemet/San Jacinto
61
aqi not available
34 
        Hesperia
50
aqi not available
11 
        Lake Elsinore
67
aqi not available
33 
        Metro Riverside CO
76
aqi not available
68 
        N Coastal Orange
42
aqi not available
53 
        NW Coastal LA
46
aqi not available
53 
        NW San Bernardino
70
aqi not available
66 
        Norco/Corona
66
aqi not available
64 
        North Orange CO
57
aqi not available
56 
        Perris Vly
66
aqi not available
34 
        Phelan
50
aqi not available
37 
        Pomona Walnut Vly
67
aqi not available
22 
        S Central LA CO
50
aqi not available
        S San Gabriel Vly
50
aqi not available
 
        SW Coastal LA
50
aqi not available
53 
        SW San Bernardino
68
aqi not available
66 
        Saddleback Vly
67
aqi not available
56 
        San Gabriel Mts
63
aqi not available
44 
        Santa Clarita Vly
55
aqi not available
44 
        South Coastal LA
50
aqi not available
53 
        Southeast LA CO
61
aqi not available
56 
        Temecula Vly
55
aqi not available
34 
        Trona
50
aqi not available
48 
        Twentynine Palms
50
aqi not available
        Victorville
50
aqi not available
        W San Bernardino M
61
aqi not available
66 
        W San Fernando Vly
68
aqi not available
65 
        W San Gabriel Vly
57
aqi not available
67 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
25 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
16 
        Davenport
Good
Good
 
        Hollister
Good
Good
16 
        King City
Good
Good
19 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
18 
        Salinas
Good
Good
22 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
12 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
29 
Paradise
Good
aqi not available
34 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
46 
Quincy
aqi not available
aqi not available
Red Bluff
aqi not available
aqi not available
14 
Redding
aqi not available
aqi not available
19 
Sacramento Area
        Arden Arcade-Del Paso Manor
49
46
28 
        Auburn
50
49
26 
        Colfax
50
49
25 
        Cool
50
48
20 
        Davis
44
44
45 
        Elk Grove
49
46
15 
        Folsom
49
46
30 
        Lincoln
50
49
20 
        Natomas
49
46
 
        North Highlands
49
46
14 
        Placerville
50
48
31 
        Rio Vista
44
44
41 
        Roseville-Rocklin
50
49
21 
        Sacramento
49
46
17 
        Sloughhouse
49
46
23 
        Vacaville
44
44
32 
        Woodland
44
44
25 
San Diego Area
        San Diego Coast
Moderate
aqi not available
18 
        San Diego Foothills
Moderate
aqi not available
24 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
17 
San Francisco Area
        Concord
37
Good
19 
        Fairfield
37
Good
22 
        Fremont
35
Good
23 
        Livermore
37
Good
20 
        Napa
34
Good
16 
        Oakland
33
Good
28 
        Redwood City
35
Good
23 
        San Francisco
33
Good
26 
        San Jose
36
Good
19 
        San Rafael
34
Good
20 
        Santa Rosa
34
Good
24 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
49
Good
50 
        Fresno
45
Good
 
        Hanford
58
Moderate
33 
        Madera
44
Good
 
        Merced
38
Good
35 
        Modesto
31
Good
16 
        Stockton
38
Good
29 
        Visalia
47
Good
56 
San Luis Obispo County
        Atascadero
33
32
20 
        Carrizo Plains
37
33
27 
        Morro Bay
36
28
19 
        Nipomo
88
95
52 
        Paso Robles
35
33
21 
        Red Hills
36
33
38 
        San Luis Obispo
34
30
44 
Santa Barbara County
        Carpinteria
Good
aqi not available
10 
        Gaviota Coast
Good
aqi not available
31 
        Goleta
Good
aqi not available
13 
        Lompoc
Good
aqi not available
36 
        Paradise Road
Good
aqi not available
14 
        Santa Barbara
Good
aqi not available
 
        Santa Maria
Good
aqi not available
33 
        Santa Ynez
Good
aqi not available
Santa Rosa Rancheria
aqi not available
aqi not available
53 
Sequoia/Kings Canyon National Parks
aqi not available
aqi not available
44 
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
57 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
13 
Ventura County Area
        Ojai
50
50
        Oxnard
45
45
42 
        Piru
50
50
40 
        Simi Valley
60
55
42 
        Thousand Oaks
55
50
33 
Western Nevada County
50
50
39 
Willows
Good
aqi not available
54 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
aqi not available
aqi not available
113 
Yuba City/Marysville
Good
aqi not available
38 
Yucca Vly
50
aqi not available
 
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.