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_20171020_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
Fri
Oct 20
Sat
Oct 21
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
43 
Bishop Paiute Tribe
aqi not available
aqi not available
24 
Chester
aqi not available
aqi not available
38 
Chico
Good
aqi not available
Death Valley National Park
aqi not available
aqi not available
40 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
Moderate
Moderate
11 
Great Basin Air District
aqi not available
aqi not available
1000 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
36 
Imperial Valley
111
58
270 
Joshua Tree National Park
aqi not available
aqi not available
38 
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
 
Laytonville
Moderate
Moderate
 
Leggett
Moderate
Moderate
 
Lone Pine Paiute-Shoshone Reservation
aqi not available
aqi not available
44 
Los Angeles Area
        Antelope Vly
55
aqi not available
31 
        Anza Vly
68
aqi not available
50 
        Banning
57
aqi not available
56 
        Barstow
46
aqi not available
29 
        Big Bear Lake
67
aqi not available
 
        C San Bernardino M
100
aqi not available
41 
        C San Bernardino-1
78
aqi not available
56 
        C San Bernardino-2
76
aqi not available
56 
        Capistrano Vly
70
aqi not available
26 
        Central Coastal
57
aqi not available
26 
        Central LA CO
74
aqi not available
79 
        Central Orange-1
68
aqi not available
45 
        Central Orange-2
68
aqi not available
45 
        Coachella Vly
67
aqi not available
61 
        E San Bernardino
100
aqi not available
36 
        E San Fernando Vly
68
aqi not available
79 
        E San Gabriel V-1
78
aqi not available
40 
        E San Gabriel V-2
78
aqi not available
40 
        East Riverside CO
50
aqi not available
 
        Hemet/San Jacinto
68
aqi not available
50 
        Hesperia
50
aqi not available
36 
        Lake Elsinore
74
aqi not available
45 
        Metro Riverside CO
82
aqi not available
74 
        N Coastal Orange
57
aqi not available
35 
        NW Coastal LA
68
aqi not available
35 
        NW San Bernardino
80
aqi not available
56 
        Norco/Corona
78
aqi not available
74 
        North Orange CO
74
aqi not available
45 
        Perris Vly
78
aqi not available
50 
        Phelan
67
aqi not available
28 
        Pomona Walnut Vly
76
aqi not available
25 
        S Central LA CO
57
aqi not available
        S San Gabriel Vly
57
aqi not available
 
        SW Coastal LA
68
aqi not available
35 
        SW San Bernardino
74
aqi not available
56 
        Saddleback Vly
61
aqi not available
45 
        San Gabriel Mts
74
aqi not available
67 
        Santa Clarita Vly
67
aqi not available
67 
        South Coastal LA
68
aqi not available
35 
        Southeast LA CO
74
aqi not available
45 
        Temecula Vly
76
aqi not available
50 
        Trona
50
aqi not available
53 
        Twentynine Palms
46
aqi not available
29 
        Victorville
50
aqi not available
29 
        W San Bernardino M
67
aqi not available
56 
        W San Fernando Vly
66
aqi not available
79 
        W San Gabriel Vly
76
aqi not available
56 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Moderate
Moderate
11 
Mono Lake
aqi not available
aqi not available
1000 
Monterey Bay Area
        Carmel Valley
Good
Moderate
17 
        Davenport
Good
Good
 
        Hollister
Moderate
Moderate
30 
        King City
Moderate
Moderate
31 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
44
Good
29 
        Salinas
Good
Good
31 
        San Lorenzo Valley
Moderate
Moderate
 
        Santa Cruz
Good
Good
26 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
77 
Paradise
Good
aqi not available
36 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
30 
Quincy
aqi not available
aqi not available
21 
Red Bluff
Good
aqi not available
21 
Redding
77
aqi not available
44 
Sacramento Area
        Arden Arcade-Del Paso Manor
53
50
 
        Auburn
50
46
23 
        Colfax
50
46
31 
        Cool
50
50
22 
        Davis
55
53
23 
        Elk Grove
53
50
18 
        Folsom
53
50
14 
        Lincoln
50
46
 
        Natomas
53
50
 
        North Highlands
53
50
        Placerville
50
50
25 
        Rio Vista
55
53
14 
        Roseville-Rocklin
50
46
19 
        Sacramento
53
50
 
        Sloughhouse
53
50
24 
        Vacaville
55
53
28 
        Woodland
55
53
50 
San Diego Area
        San Diego Coast
Moderate
aqi not available
28 
        San Diego Foothills
Good
aqi not available
36 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
21 
San Francisco Area
        Concord
37
Good
28 
        Fairfield
37
Good
28 
        Fremont
25
Good
31 
        Livermore
37
Good
20 
        Napa
68
Moderate
26 
        Oakland
33
Good
36 
        Redwood City
25
Good
        San Francisco
33
Good
19 
        San Jose
55
Moderate
17 
        San Rafael
68
Moderate
26 
        Santa Rosa
68
Moderate
11 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
88
Moderate
19 
        Fresno
83
Moderate
19 
        Hanford
88
Moderate
20 
        Madera
56
Moderate
 
        Merced
38
Good
27 
        Modesto
39
Good
19 
        Stockton
37
Good
        Visalia
68
Moderate
28 
San Luis Obispo County
        Atascadero
44
43
23 
        Carrizo Plains
55
66
14 
        Morro Bay
42
43
25 
        Nipomo
89
63
24 
        Paso Robles
49
43
28 
        Red Hills
62
53
24 
        San Luis Obispo
45
43
28 
Santa Barbara County
        Carpinteria
Good
aqi not available
13 
        Gaviota Coast
Good
aqi not available
28 
        Goleta
Good
aqi not available
30 
        Lompoc
Moderate
aqi not available
30 
        Paradise Road
Good
aqi not available
22 
        Santa Barbara
Good
aqi not available
 
        Santa Maria
Moderate
aqi not available
16 
        Santa Ynez
Good
aqi not available
19 
Santa Rosa Rancheria
aqi not available
aqi not available
32 
Sequoia/Kings Canyon National Parks
aqi not available
aqi not available
73 
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
60 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
22 
Ventura County Area
        Ojai
50
55
38 
        Oxnard
50
55
43 
        Piru
50
60
47 
        Simi Valley
50
60
38 
        Thousand Oaks
50
60
22 
Western Nevada County
45
45
38 
Willits
Moderate
Moderate
 
Willows
Good
aqi not available
16 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
aqi not available
aqi not available
52 
Yuba City/Marysville
Moderate
Moderate
11 
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.