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_20180119_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
Jan 19
Sat
Jan 20
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
87 
Bishop Paiute Tribe
aqi not available
aqi not available
87 
Chester
aqi not available
aqi not available
43 
Chico
Good
aqi not available
27 
Death Valley National Park
35
aqi not available
30 
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
19 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
Imperial Valley
101
88
106 
Joshua Tree National Park
aqi not available
aqi not available
42 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
35
aqi not available
 
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
46
aqi not available
63 
        Anza Vly
61
aqi not available
81 
        Banning
50
aqi not available
52 
        Barstow
37
aqi not available
        Big Bear Lake
37
aqi not available
 
        C San Bernardino M
46
aqi not available
50 
        C San Bernardino-1
84
aqi not available
82 
        C San Bernardino-2
68
aqi not available
82 
        Capistrano Vly
63
aqi not available
26 
        Central Coastal
57
aqi not available
26 
        Central LA CO
70
aqi not available
81 
        Central Orange-1
68
aqi not available
57 
        Central Orange-2
68
aqi not available
57 
        Coachella Vly
50
aqi not available
18 
        E San Bernardino
61
aqi not available
23 
        E San Fernando Vly
72
aqi not available
79 
        E San Gabriel V-1
66
aqi not available
81 
        E San Gabriel V-2
61
aqi not available
81 
        East Riverside CO
50
aqi not available
 
        Hemet/San Jacinto
53
aqi not available
40 
        Hesperia
50
aqi not available
46 
        Lake Elsinore
72
aqi not available
81 
        Metro Riverside CO
82
aqi not available
96 
        N Coastal Orange
63
aqi not available
57 
        NW Coastal LA
70
aqi not available
57 
        NW San Bernardino
70
aqi not available
82 
        Norco/Corona
70
aqi not available
96 
        North Orange CO
70
aqi not available
57 
        Perris Vly
61
aqi not available
40 
        Phelan
50
aqi not available
31 
        Pomona Walnut Vly
66
aqi not available
        S Central LA CO
57
aqi not available
20 
        S San Gabriel Vly
57
aqi not available
 
        SW Coastal LA
76
aqi not available
57 
        SW San Bernardino
68
aqi not available
82 
        Saddleback Vly
57
aqi not available
57 
        San Gabriel Mts
61
aqi not available
81 
        Santa Clarita Vly
42
aqi not available
78 
        South Coastal LA
76
aqi not available
57 
        Southeast LA CO
72
aqi not available
57 
        Temecula Vly
66
aqi not available
81 
        Trona
50
aqi not available
16 
        Twentynine Palms
37
aqi not available
        Victorville
50
aqi not available
37 
        W San Bernardino M
61
aqi not available
82 
        W San Fernando Vly
61
aqi not available
79 
        W San Gabriel Vly
66
aqi not available
81 
Mammoth Lakes
aqi not available
aqi not available
13 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
36 
Mono Lake
aqi not available
aqi not available
19 
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
37
Good
32 
        Salinas
Good
Good
32 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
 
        Scotts Valley
Good
Good
 
        Watsonville
Good
aqi not available
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
17 
Paradise
Good
aqi not available
34 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
56 
Quincy
aqi not available
aqi not available
23 
Red Bluff
aqi not available
aqi not available
 
Redding
aqi not available
aqi not available
24 
Sacramento Area
        Arden Arcade-Del Paso Manor
63
63
28 
        Auburn
50
50
31 
        Colfax
50
50
36 
        Cool
aqi not available
aqi not available
 
        Davis
55
57
32 
        Elk Grove
63
63
30 
        Folsom
63
63
30 
        Lincoln
50
50
 
        Natomas
63
63
 
        North Highlands
63
63
22 
        Placerville
aqi not available
aqi not available
34 
        Rio Vista
55
57
        Roseville-Rocklin
50
50
23 
        Sacramento
63
63
26 
        Sloughhouse
63
63
27 
        Vacaville
55
57
31 
        Woodland
55
57
38 
San Diego Area
        San Diego Coast
Good
aqi not available
76 
        San Diego Foothills
Good
aqi not available
42 
        San Diego Mesa and Inland Valley
Good
aqi not available
69 
San Francisco Area
        Concord
55
Good
28 
        Fairfield
55
Good
31 
        Fremont
46
Good
33 
        Livermore
55
Good
32 
        Napa
57
Moderate
37 
        Oakland
63
Moderate
32 
        Redwood City
46
Good
31 
        San Francisco
63
Moderate
33 
        San Jose
50
Good
30 
        San Rafael
57
Moderate
23 
        Santa Rosa
57
Moderate
31 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
70
Good
90 
        Fresno
50
Good
92 
        Hanford
59
Good
        Madera
42
Good
13 
        Merced
46
Good
26 
        Modesto
38
Good
31 
        Stockton
33
Good
41 
        Visalia
64
Good
69 
San Luis Obispo County
        Atascadero
30
31
24 
        Carrizo Plains
35
35
        Morro Bay
31
33
34 
        Nipomo
78
67
25 
        Paso Robles
30
32
28 
        Red Hills
36
35
23 
        San Luis Obispo
30
32
31 
Santa Barbara County
        Carpinteria
Good
aqi not available
28 
        Gaviota Coast
Moderate
aqi not available
30 
        Goleta
Good
aqi not available
28 
        Lompoc
Good
aqi not available
29 
        Paradise Road
Good
aqi not available
19 
        Santa Barbara
Moderate
aqi not available
36 
        Santa Maria
Moderate
aqi not available
23 
        Santa Ynez
Good
aqi not available
20 
Santa Rosa Rancheria
aqi not available
aqi not available
19 
Sequoia/Kings Canyon National Parks
35
aqi not available
21 
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
52 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
33 
Ventura County Area
        Ojai
40
40
33 
        Oxnard
40
40
 
        Piru
40
40
35 
        Simi Valley
40
40
38 
        Thousand Oaks
40
40
46 
Western Nevada County
aqi not available
aqi not available
44 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
28 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
37
aqi not available
32 
Yuba City/Marysville
Moderate
Moderate
31 
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.