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_20190923_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
Mon
Sep 23
Tue
Sep 24
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
28 
Bishop Paiute Tribe
aqi not available
aqi not available
10 
Brawley
aqi not available
aqi not available
25 
Calexico
aqi not available
aqi not available
53 
Chester
aqi not available
aqi not available
24 
Chico
Good
aqi not available
21 
Death Valley National Park
40
aqi not available
46 
El Centro
aqi not available
aqi not available
43 
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
28 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
35 
Imperial Valley
aqi not available
aqi not available
53 
Indio - Twenty Nine Palms Reservation
aqi not available
aqi not available
24 
Joshua Tree National Park
aqi not available
aqi not available
32 
La Grange
aqi not available
aqi not available
 
Lassen Volcanic National Park
34
aqi not available
25 
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
50
aqi not available
32 
        Anza Vly
71
aqi not available
29 
        Banning
97
aqi not available
34 
        Barstow
54
aqi not available
29 
        Big Bear Lake
93
aqi not available
 
        C San Bernardino M
115
aqi not available
40 
        C San Bernardino-1
105
aqi not available
41 
        C San Bernardino-2
105
aqi not available
41 
        Capistrano Vly
46
aqi not available
19 
        Central Coastal
50
aqi not available
19 
        Central LA CO
66
aqi not available
53 
        Central Orange-1
53
aqi not available
31 
        Central Orange-2
53
aqi not available
31 
        Coachella Vly
74
aqi not available
29 
        E San Bernardino
118
aqi not available
31 
        E San Fernando Vly
64
aqi not available
53 
        E San Gabriel V-1
74
aqi not available
53 
        E San Gabriel V-2
74
aqi not available
53 
        East Riverside CO
49
aqi not available
 
        Hemet/San Jacinto
84
aqi not available
29 
        Hesperia
100
aqi not available
33 
        Lake Elsinore
61
aqi not available
27 
        Metro Riverside CO
97
aqi not available
52 
        N Coastal Orange
47
aqi not available
25 
        NW Coastal LA
68
aqi not available
27 
        NW San Bernardino
97
aqi not available
22 
        Norco/Corona
93
aqi not available
52 
        North Orange CO
61
aqi not available
31 
        Perris Vly
93
aqi not available
29 
        Phelan
101
aqi not available
31 
        Pomona Walnut Vly
84
aqi not available
16 
        S Central LA CO
72
aqi not available
        S San Gabriel Vly
61
aqi not available
 
        SW Coastal LA
72
aqi not available
25 
        SW San Bernardino
90
aqi not available
22 
        Saddleback Vly
58
aqi not available
31 
        San Gabriel Mts
100
aqi not available
53 
        Santa Clarita Vly
115
aqi not available
25 
        South Coastal LA
50
aqi not available
25 
        Southeast LA CO
63
aqi not available
31 
        Temecula Vly
64
aqi not available
29 
        Trona
43
aqi not available
43 
        Twentynine Palms
49
aqi not available
29 
        Victorville
74
aqi not available
28 
        W San Bernardino M
115
aqi not available
40 
        W San Fernando Vly
77
aqi not available
53 
        W San Gabriel Vly
61
aqi not available
12 
Mammoth Lakes
aqi not available
aqi not available
15 
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
43
aqi not available
 
        Salinas
Good
aqi not available
15 
        San Lorenzo Valley
Good
aqi not available
 
        Santa Cruz
Good
aqi not available
28 
        Scotts Valley
Good
aqi not available
 
        Watsonville
Good
aqi not available
 
Niland
aqi not available
aqi not available
28 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
20 
Paradise
Good
aqi not available
35 
Point Arena
aqi not available
aqi not available
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
50 
Quincy
aqi not available
aqi not available
25 
Red Bluff
aqi not available
aqi not available
22 
Redding
aqi not available
aqi not available
20 
Sacramento Area
        Arden Arcade-Del Paso Manor
48
74
11 
        Auburn
48
74
40 
        Colfax
48
74
31 
        Cool
48
77
33 
        Davis
41
50
16 
        Elk Grove
48
74
10 
        Folsom
48
74
 
        Lincoln
48
74
26 
        Natomas
48
74
 
        North Highlands
48
74
10 
        Placerville
48
77
40 
        Rio Vista
41
50
        Roseville-Rocklin
48
74
18 
        Sacramento
48
74
        Sloughhouse
48
74
13 
        Vacaville
41
50
15 
        Woodland
41
50
14 
San Diego Area
        San Diego Coast
Good
aqi not available
38 
        San Diego Foothills
Moderate
aqi not available
26 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
47 
San Francisco Area
        Concord
40
Moderate
17 
        Fairfield
40
Moderate
17 
        Fremont
38
Good
17 
        Livermore
40
Moderate
13 
        Napa
38
Good
11 
        Oakland
38
Good
16 
        Redwood City
38
Good
11 
        San Francisco
38
Good
19 
        San Jose
42
Moderate
12 
        San Rafael
38
Good
16 
        Santa Rosa
38
Good
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
69
aqi not available
52 
        Fresno
61
aqi not available
53 
        Hanford
63
aqi not available
28 
        Madera
57
aqi not available
18 
        Merced
51
aqi not available
25 
        Modesto
50
aqi not available
14 
        Stockton
50
aqi not available
19 
        Visalia
66
aqi not available
37 
San Luis Obispo County
        Atascadero
39
42
17 
        Carrizo Plains
45
53
23 
        Morro Bay
38
39
        Nipomo
49
46
19 
        Paso Robles
39
40
17 
        Red Hills
39
40
37 
        San Luis Obispo
39
40
28 
Santa Barbara County
        Carpinteria
Good
aqi not available
32 
        Gaviota Coast
Good
aqi not available
61 
        Goleta
Good
aqi not available
 
        Lompoc
Good
aqi not available
21 
        Paradise Road
Good
aqi not available
35 
        Santa Barbara
Good
aqi not available
28 
        Santa Maria
Good
aqi not available
25 
        Santa Ynez
Good
aqi not available
Santa Rosa Rancheria
aqi not available
aqi not available
44 
Sequoia/Kings Canyon National Parks
48
aqi not available
45 
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
57 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
27 
Ukiah
aqi not available
aqi not available
Ventura County Area
        Ojai
65
70
19 
        Oxnard
50
55
22 
        Piru
65
70
33 
        Simi Valley
70
75
33 
        Thousand Oaks
60
65
52 
Western Nevada County
aqi not available
aqi not available
46 
Westmorland
aqi not available
aqi not available
23 
Willits
aqi not available
aqi not available
Willows
aqi not available
aqi not available
22 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
43
aqi not available
156 
Yreka
aqi not available
aqi not available
14 
Yuba City/Marysville
44
aqi not available
32 
Yucca Vly
61
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.