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_20191022_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
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 Air Resources 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
Siskiyou County Air Pollution Control 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
Tue
Oct 22
Wed
Oct 23
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
23 
Bishop Paiute Tribe
aqi not available
aqi not available
Brawley
50
57
20 
Calexico
50
57
26 
Chester
aqi not available
aqi not available
17 
Chico
Good
aqi not available
22 
Death Valley National Park
35
aqi not available
38 
El Centro
50
57
29 
Eureka
aqi not available
aqi not available
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
23 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
28 
Imperial Valley
50
57
29 
Indio - Twenty Nine Palms Reservation
aqi not available
aqi not available
19 
Joshua Tree National Park
aqi not available
aqi not available
 
La Grange
aqi not available
aqi not available
 
Lassen Volcanic National Park
39
aqi not available
28 
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
37
aqi not available
44 
        Anza Vly
44
aqi not available
34 
        Banning
44
aqi not available
27 
        Barstow
37
aqi not available
34 
        Big Bear Lake
44
aqi not available
 
        C San Bernardino M
44
aqi not available
29 
        C San Bernardino-1
45
aqi not available
30 
        C San Bernardino-2
44
aqi not available
30 
        Capistrano Vly
71
aqi not available
29 
        Central Coastal
64
aqi not available
29 
        Central LA CO
50
aqi not available
60 
        Central Orange-1
45
aqi not available
36 
        Central Orange-2
45
aqi not available
36 
        Coachella Vly
46
aqi not available
48 
        E San Bernardino
49
aqi not available
34 
        E San Fernando Vly
46
aqi not available
39 
        E San Gabriel V-1
45
aqi not available
44 
        E San Gabriel V-2
46
aqi not available
44 
        East Riverside CO
40
aqi not available
 
        Hemet/San Jacinto
44
aqi not available
34 
        Hesperia
42
aqi not available
22 
        Lake Elsinore
49
aqi not available
30 
        Metro Riverside CO
55
aqi not available
71 
        N Coastal Orange
43
aqi not available
60 
        NW Coastal LA
38
aqi not available
60 
        NW San Bernardino
45
aqi not available
23 
        Norco/Corona
46
aqi not available
71 
        North Orange CO
48
aqi not available
36 
        Perris Vly
47
aqi not available
34 
        Phelan
43
aqi not available
31 
        Pomona Walnut Vly
47
aqi not available
        S Central LA CO
46
aqi not available
        S San Gabriel Vly
46
aqi not available
 
        SW Coastal LA
50
aqi not available
60 
        SW San Bernardino
44
aqi not available
23 
        Saddleback Vly
61
aqi not available
36 
        San Gabriel Mts
44
aqi not available
44 
        Santa Clarita Vly
43
aqi not available
15 
        South Coastal LA
50
aqi not available
60 
        Southeast LA CO
50
aqi not available
36 
        Temecula Vly
47
aqi not available
34 
        Trona
36
aqi not available
19 
        Twentynine Palms
40
aqi not available
34 
        Victorville
41
aqi not available
33 
        W San Bernardino M
45
aqi not available
29 
        W San Fernando Vly
44
aqi not available
39 
        W San Gabriel Vly
45
aqi not available
51 
Mammoth Lakes
aqi not available
aqi not available
14 
Markleeville
aqi not available
aqi not available
 
Mendocino County
aqi not available
aqi not available
 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
 
        Davenport
Good
aqi not available
 
        Hollister
Good
Good
 
        King City
Good
Good
 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
 
        Salinas
Good
Good
19 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
21 
        Scotts Valley
Good
Good
 
        Watsonville
Good
aqi not available
 
Niland
50
57
19 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
Paradise
Good
aqi not available
33 
Point Arena
aqi not available
aqi not available
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
74 
Quincy
aqi not available
aqi not available
37 
Red Bluff
Good
aqi not available
21 
Redding
aqi not available
aqi not available
28 
Sacramento Area
        Arden Arcade-Del Paso Manor
67
61
12 
        Auburn
67
58
31 
        Colfax
67
58
64 
        Cool
67
61
23 
        Davis
50
44
15 
        Elk Grove
67
61
        Folsom
67
61
 
        Lincoln
67
58
40 
        Natomas
67
61
 
        North Highlands
67
61
        Placerville
67
61
37 
        Rio Vista
50
44
10 
        Roseville-Rocklin
67
58
23 
        Sacramento
67
61
31 
        Sloughhouse
67
61
24 
        Vacaville
50
44
        Woodland
50
44
17 
San Diego Area
        San Diego Coast
Good
aqi not available
20 
        San Diego Foothills
Moderate
aqi not available
41 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
32 
San Francisco Area
        Concord
46
Moderate
22 
        Fairfield
46
Moderate
20 
        Fremont
50
Good
30 
        Livermore
46
Moderate
26 
        Napa
53
Moderate
22 
        Oakland
55
Moderate
37 
        Redwood City
50
Good
        San Francisco
55
Moderate
52 
        San Jose
48
Good
48 
        San Rafael
53
Moderate
13 
        Santa Rosa
53
Moderate
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
71
aqi not available
59 
        Fresno
61
aqi not available
47 
        Hanford
57
aqi not available
        Madera
54
aqi not available
        Merced
43
aqi not available
50 
        Modesto
39
aqi not available
49 
        Stockton
40
aqi not available
43 
        Visalia
59
aqi not available
52 
San Luis Obispo County
        Atascadero
47
46
22 
        Carrizo Plains
51
50
15 
        Morro Bay
42
41
42 
        Nipomo
50
49
42 
        Paso Robles
49
46
31 
        Red Hills
51
50
44 
        San Luis Obispo
43
39
37 
Santa Barbara County
        Carpinteria
Moderate
aqi not available
32 
        Gaviota Coast
Moderate
aqi not available
41 
        Goleta
Good
aqi not available
14 
        Lompoc
Good
aqi not available
38 
        Paradise Road
Moderate
aqi not available
31 
        Santa Barbara
Good
aqi not available
17 
        Santa Maria
Good
aqi not available
20 
        Santa Ynez
Moderate
aqi not available
18 
Santa Rosa Rancheria
aqi not available
aqi not available
76 
Sequoia/Kings Canyon National Parks
40
aqi not available
26 
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
45 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
21 
Ukiah
aqi not available
aqi not available
10 
Ventura County Area
        Ojai
50
50
16 
        Oxnard
45
50
22 
        Piru
50
50
28 
        Simi Valley
50
50
36 
        Thousand Oaks
45
45
26 
Western Nevada County
50
55
42 
Westmorland
50
57
17 
Willits
aqi not available
aqi not available
10 
Willows
aqi not available
aqi not available
20 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
39
aqi not available
47 
Yreka
aqi not available
aqi not available
19 
Yuba City/Marysville
44
aqi not available
27 
Yucca Vly
42
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.