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_20190921_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
Sat
Sep 21
Sun
Sep 22
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
33 
Bishop Paiute Tribe
aqi not available
aqi not available
11 
Brawley
aqi not available
aqi not available
44 
Calexico
aqi not available
aqi not available
40 
Chester
aqi not available
aqi not available
11 
Chico
Good
Good
25 
Death Valley National Park
34
aqi not available
34 
El Centro
aqi not available
aqi not available
40 
Eureka
aqi not available
aqi not available
 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
21 
Great Basin Air District
aqi not available
aqi not available
33 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
20 
Imperial Valley
aqi not available
aqi not available
45 
Indio - Twenty Nine Palms Reservation
aqi not available
aqi not available
40 
Joshua Tree National Park
aqi not available
aqi not available
39 
La Grange
aqi not available
aqi not available
 
Lassen Volcanic National Park
31
aqi not available
31 
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
48
67
42 
        Anza Vly
48
71
50 
        Banning
51
93
44 
        Barstow
42
58
32 
        Big Bear Lake
49
77
 
        C San Bernardino M
61
100
36 
        C San Bernardino-1
77
100
55 
        C San Bernardino-2
77
100
55 
        Capistrano Vly
93
49
45 
        Central Coastal
90
58
45 
        Central LA CO
57
63
56 
        Central Orange-1
64
61
44 
        Central Orange-2
64
61
44 
        Coachella Vly
54
74
46 
        E San Bernardino
87
112
64 
        E San Fernando Vly
77
61
56 
        E San Gabriel V-1
80
80
54 
        E San Gabriel V-2
80
80
54 
        East Riverside CO
47
50
 
        Hemet/San Jacinto
50
80
50 
        Hesperia
50
90
43 
        Lake Elsinore
74
64
46 
        Metro Riverside CO
77
90
63 
        N Coastal Orange
67
61
56 
        NW Coastal LA
58
78
56 
        NW San Bernardino
61
87
55 
        Norco/Corona
84
87
63 
        North Orange CO
67
71
44 
        Perris Vly
58
84
50 
        Phelan
51
80
40 
        Pomona Walnut Vly
80
80
39 
        S Central LA CO
41
78
33 
        S San Gabriel Vly
61
77
 
        SW Coastal LA
41
78
56 
        SW San Bernardino
80
90
55 
        Saddleback Vly
100
64
45 
        San Gabriel Mts
54
71
54 
        Santa Clarita Vly
45
71
45 
        South Coastal LA
44
72
56 
        Southeast LA CO
47
76
44 
        Temecula Vly
84
77
50 
        Trona
44
41
29 
        Twentynine Palms
47
50
32 
        Victorville
51
84
35 
        W San Bernardino M
50
87
55 
        W San Fernando Vly
67
80
56 
        W San Gabriel Vly
77
64
47 
Mammoth Lakes
aqi not available
aqi not available
13 
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
aqi not available
 
        Davenport
Good
aqi not available
 
        Hollister
Good
aqi not available
 
        King City
Good
aqi not available
 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
aqi not available
 
        Pinnacles National Monument
Good
aqi not available
 
        Salinas
Good
aqi not available
20 
        San Lorenzo Valley
Good
aqi not available
 
        Santa Cruz
Good
aqi not available
25 
        Scotts Valley
Good
aqi not available
 
        Watsonville
Good
aqi not available
 
Niland
aqi not available
aqi not available
45 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
19 
Paradise
Good
Good
28 
Point Arena
aqi not available
aqi not available
21 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
26 
Quincy
aqi not available
aqi not available
13 
Red Bluff
Good
aqi not available
24 
Redding
aqi not available
aqi not available
24 
Sacramento Area
        Arden Arcade-Del Paso Manor
46
58
24 
        Auburn
46
67
31 
        Colfax
46
67
29 
        Cool
46
67
27 
        Davis
40
46
26 
        Elk Grove
46
58
21 
        Folsom
46
58
 
        Lincoln
46
67
35 
        Natomas
46
58
 
        North Highlands
46
58
26 
        Placerville
46
67
35 
        Rio Vista
40
46
        Roseville-Rocklin
46
67
25 
        Sacramento
46
58
24 
        Sloughhouse
46
58
28 
        Vacaville
40
46
23 
        Woodland
40
46
27 
San Diego Area
        San Diego Coast
Good
Moderate
50 
        San Diego Foothills
Moderate
Moderate
48 
        San Diego Mesa and Inland Valley
Moderate
Moderate
56 
San Francisco Area
        Concord
77
49
28 
        Fairfield
77
49
28 
        Fremont
44
38
31 
        Livermore
77
49
25 
        Napa
42
36
23 
        Oakland
42
42
52 
        Redwood City
44
38
25 
        San Francisco
42
42
39 
        San Jose
74
51
47 
        San Rafael
42
36
26 
        Santa Rosa
42
36
30 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
74
aqi not available
41 
        Fresno
67
aqi not available
52 
        Hanford
51
aqi not available
28 
        Madera
44
aqi not available
26 
        Merced
43
aqi not available
28 
        Modesto
40
aqi not available
33 
        Stockton
39
aqi not available
22 
        Visalia
54
aqi not available
63 
San Luis Obispo County
        Atascadero
37
38
35 
        Carrizo Plains
44
51
35 
        Morro Bay
37
38
36 
        Nipomo
47
38
51 
        Paso Robles
37
38
35 
        Red Hills
37
38
35 
        San Luis Obispo
36
38
39 
Santa Barbara County
        Carpinteria
Good
Good
44 
        Gaviota Coast
Good
Good
41 
        Goleta
Good
Good
34 
        Lompoc
Good
Good
39 
        Paradise Road
Good
Good
40 
        Santa Barbara
Good
Good
35 
        Santa Maria
Good
Good
46 
        Santa Ynez
Good
Good
32 
Santa Rosa Rancheria
aqi not available
aqi not available
42 
Sequoia/Kings Canyon National Parks
38
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
24 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
35 
Ukiah
aqi not available
aqi not available
23 
Ventura County Area
        Ojai
65
75
35 
        Oxnard
50
70
40 
        Piru
70
80
52 
        Simi Valley
75
85
41 
        Thousand Oaks
60
80
37 
Western Nevada County
40
aqi not available
31 
Westmorland
aqi not available
aqi not available
34 
Willits
aqi not available
aqi not available
45 
Willows
aqi not available
aqi not available
54 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
34
aqi not available
32 
Yreka
aqi not available
aqi not available
10 
Yuba City/Marysville
39
aqi not available
22 
Yucca Vly
50
67
 
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.