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_20200123_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
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
Thu
Jan 23
Fri
Jan 24
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
30 
Bishop Paiute Tribe
aqi not available
aqi not available
 
Brawley
42
63
14 
Calexico
42
63
41 
Chester
aqi not available
aqi not available
59 
Chico
Good
Good
Death Valley National Park
28
aqi not available
31 
El Centro
42
63
31 
Eureka
aqi not available
aqi not available
28 
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
44 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Good
42 
Imperial Valley
42
63
41 
Indio - Twenty Nine Palms Reservation
aqi not available
aqi not available
33 
Joshua Tree National Park
aqi not available
aqi not available
37 
La Grange
aqi not available
aqi not available
 
Lassen Volcanic National Park
28
aqi not available
19 
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
34
36
24 
        Anza Vly
38
33
35 
        Banning
35
40
32 
        Barstow
31
40
20 
        Big Bear Lake
35
45
 
        C San Bernardino M
39
48
33 
        C San Bernardino-1
35
43
26 
        C San Bernardino-2
35
43
26 
        Capistrano Vly
55
50
32 
        Central Coastal
66
57
32 
        Central LA CO
46
59
75 
        Central Orange-1
55
59
71 
        Central Orange-2
55
59
71 
        Coachella Vly
36
42
31 
        E San Bernardino
38
47
32 
        E San Fernando Vly
38
50
42 
        E San Gabriel V-1
37
42
30 
        E San Gabriel V-2
37
42
30 
        East Riverside CO
36
31
 
        Hemet/San Jacinto
36
46
35 
        Hesperia
38
45
26 
        Lake Elsinore
37
39
26 
        Metro Riverside CO
38
63
50 
        N Coastal Orange
68
57
75 
        NW Coastal LA
38
50
75 
        NW San Bernardino
26
50
26 
        Norco/Corona
42
68
71 
        North Orange CO
50
61
71 
        Perris Vly
36
50
35 
        Phelan
39
42
33 
        Pomona Walnut Vly
37
59
15 
        S Central LA CO
57
70
15 
        S San Gabriel Vly
46
57
 
        SW Coastal LA
61
72
75 
        SW San Bernardino
29
61
26 
        Saddleback Vly
59
53
71 
        San Gabriel Mts
36
33
30 
        Santa Clarita Vly
38
48
28 
        South Coastal LA
68
72
75 
        Southeast LA CO
55
66
71 
        Temecula Vly
38
42
35 
        Trona
33
43
24 
        Twentynine Palms
36
31
20 
        Victorville
42
37
23 
        W San Bernardino M
39
48
33 
        W San Fernando Vly
36
46
42 
        W San Gabriel Vly
37
50
58 
Mammoth Lakes
aqi not available
aqi not available
44 
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
15 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
35 
        Scotts Valley
Good
Good
 
        Watsonville
Good
aqi not available
 
Niland
42
63
14 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
16 
Paradise
Good
Good
 
Point Arena
aqi not available
aqi not available
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
75 
Quincy
aqi not available
aqi not available
12 
Red Bluff
Good
Good
21 
Redding
aqi not available
aqi not available
66 
Sacramento Area
        Arden Arcade-Del Paso Manor
68
80
53 
        Auburn
53
57
13 
        Colfax
53
57
12 
        Cool
aqi not available
aqi not available
 
        Davis
33
55
23 
        Elk Grove
68
80
26 
        Folsom
68
80
 
        Lincoln
53
57
27 
        Natomas
68
80
 
        North Highlands
68
80
        Placerville
aqi not available
aqi not available
21 
        Rio Vista
33
55
 
        Roseville-Rocklin
53
57
35 
        Sacramento
68
80
42 
        Sloughhouse
68
80
15 
        Vacaville
33
55
10 
        Woodland
33
55
11 
San Diego Area
        San Diego Coast
Moderate
Moderate
61 
        San Diego Foothills
Good
Good
34 
        San Diego Mesa and Inland Valley
Moderate
Moderate
27 
San Francisco Area
        Concord
50
53
21 
        Fairfield
50
53
28 
        Fremont
46
53
37 
        Livermore
50
53
48 
        Napa
53
57
23 
        Oakland
55
59
51 
        Redwood City
46
53
37 
        San Francisco
55
59
37 
        San Jose
42
68
67 
        San Rafael
53
57
30 
        Santa Rosa
53
57
21 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
Actionday icon
80
aqi not available
58 
        Fresno
Actionday icon
85
aqi not available
40 
        Hanford
Actionday icon
72
aqi not available
10 
        Madera
Actionday icon
76
aqi not available
        Merced
59
aqi not available
28 
        Modesto
64
aqi not available
52 
        Stockton
64
aqi not available
71 
        Visalia
Actionday icon
78
aqi not available
50 
San Luis Obispo County
        Atascadero
37
44
53 
        Carrizo Plains
36
39
22 
        Morro Bay
36
36
23 
        Nipomo
40
45
35 
        Paso Robles
37
44
53 
        Red Hills
36
37
30 
        San Luis Obispo
36
40
26 
Santa Barbara County
        Carpinteria
Good
Good
23 
        Gaviota Coast
Good
Good
31 
        Goleta
Good
Good
28 
        Lompoc
Good
Good
28 
        Paradise Road
Good
Good
26 
        Santa Barbara
Good
Good
29 
        Santa Maria
Good
Good
33 
        Santa Ynez
Good
Good
18 
Santa Rosa Rancheria
aqi not available
aqi not available
Sequoia/Kings Canyon National Parks
35
aqi not available
25 
South Lake Tahoe
aqi not available
aqi not available
12 
Tahoe City area
aqi not available
aqi not available
22 
Truckee
aqi not available
aqi not available
14 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
18 
Ukiah
aqi not available
aqi not available
70 
Ventura County Area
        Ojai
35
35
22 
        Oxnard
35
35
24 
        Piru
35
35
31 
        Simi Valley
35
35
34 
        Thousand Oaks
35
35
26 
Western Nevada County
aqi not available
aqi not available
24 
Westmorland
42
63
23 
Willits
aqi not available
aqi not available
24 
Willows
aqi not available
aqi not available
41 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
33
aqi not available
40 
Yreka
aqi not available
aqi not available
34 
Yuba City/Marysville
42
59
39 
Yucca Vly
40
40
 
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.