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_20191119_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
Tue
Nov 19
Wed
Nov 20
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
34 
Bishop Paiute Tribe
aqi not available
aqi not available
 
Brawley
88
113
88 
Calexico
88
113
67 
Chester
aqi not available
aqi not available
Chico
Moderate
Good
34 
Death Valley National Park
42
39
31 
El Centro
88
113
82 
Eureka
aqi not available
aqi not available
32 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
29 
Great Basin Air District
aqi not available
aqi not available
55 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
50 
Healdsburg
aqi not available
aqi not available
21 
Imperial Valley
88
113
100 
Indio - Twenty Nine Palms Reservation
aqi not available
aqi not available
51 
Joshua Tree National Park
aqi not available
aqi not available
43 
La Grange
aqi not available
aqi not available
 
Lassen Volcanic National Park
31
31
34 
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
32
46 
        Anza Vly
45
36
37 
        Banning
50
37
31 
        Barstow
50
36
110 
        Big Bear Lake
45
34
 
        C San Bernardino M
44
35
37 
        C San Bernardino-1
61
32
61 
        C San Bernardino-2
61
32
61 
        Capistrano Vly
42
38
44 
        Central Coastal
46
33
44 
        Central LA CO
61
30
48 
        Central Orange-1
50
30
33 
        Central Orange-2
50
30
33 
        Coachella Vly
42
39
57 
        E San Bernardino
55
39
39 
        E San Fernando Vly
63
33
46 
        E San Gabriel V-1
57
36
51 
        E San Gabriel V-2
57
36
51 
        East Riverside CO
44
36
 
        Hemet/San Jacinto
47
36
35 
        Hesperia
47
37
52 
        Lake Elsinore
45
35
37 
        Metro Riverside CO
59
40
69 
        N Coastal Orange
50
39
43 
        NW Coastal LA
80
34
43 
        NW San Bernardino
57
31
37 
        Norco/Corona
61
36
69 
        North Orange CO
55
30
33 
        Perris Vly
55
34
35 
        Phelan
50
38
46 
        Pomona Walnut Vly
57
33
27 
        S Central LA CO
76
28
23 
        S San Gabriel Vly
57
30
 
        SW Coastal LA
87
36
43 
        SW San Bernardino
59
30
37 
        Saddleback Vly
53
42
44 
        San Gabriel Mts
57
38
51 
        Santa Clarita Vly
50
34
36 
        South Coastal LA
59
30
43 
        Southeast LA CO
68
29
33 
        Temecula Vly
46
36
37 
        Trona
35
38
79 
        Twentynine Palms
44
36
110 
        Victorville
50
37
67 
        W San Bernardino M
57
31
37 
        W San Fernando Vly
57
34
46 
        W San Gabriel Vly
55
33
48 
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
55 
Monterey Bay Area
        Carmel Valley
Good
Good
 
        Davenport
Good
Good
 
        Hollister
Good
Good
 
        King City
Good
Good
 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
 
        Salinas
Good
Good
31 
        San Lorenzo Valley
Moderate
Good
 
        Santa Cruz
Good
Good
31 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Niland
88
113
70 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
28 
Paradise
Good
Good
38 
Point Arena
aqi not available
aqi not available
29 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
39 
Quincy
aqi not available
aqi not available
21 
Red Bluff
Good
Good
34 
Redding
aqi not available
aqi not available
31 
Sacramento Area
        Arden Arcade-Del Paso Manor
66
46
60 
        Auburn
46
33
46 
        Colfax
46
33
35 
        Cool
aqi not available
aqi not available
 
        Davis
61
42
37 
        Elk Grove
66
46
34 
        Folsom
66
46
 
        Lincoln
46
33
51 
        Natomas
66
46
 
        North Highlands
66
46
31 
        Placerville
aqi not available
aqi not available
34 
        Rio Vista
61
42
24 
        Roseville-Rocklin
46
33
60 
        Sacramento
66
46
51 
        Sloughhouse
66
46
53 
        Vacaville
61
42
31 
        Woodland
61
42
43 
San Diego Area
        San Diego Coast
Good
Good
31 
        San Diego Foothills
Moderate
Good
32 
        San Diego Mesa and Inland Valley
Moderate
Good
37 
San Francisco Area
        Concord
46
38
31 
        Fairfield
46
38
31 
        Fremont
38
39
34 
        Livermore
46
38
31 
        Napa
38
38
29 
        Oakland
42
42
41 
        Redwood City
38
39
30 
        San Francisco
42
42
44 
        San Jose
42
46
31 
        San Rafael
38
38
31 
        Santa Rosa
38
38
31 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
59
Actionday icon
78
79 
        Fresno
78
Actionday icon
59
72 
        Hanford
72
Actionday icon
85
45 
        Madera
53
52
39 
        Merced
50
50
33 
        Modesto
57
53
36 
        Stockton
50
50
23 
        Visalia
80
Actionday icon
80
81 
San Luis Obispo County
        Atascadero
36
35
43 
        Carrizo Plains
37
35
37 
        Morro Bay
35
34
37 
        Nipomo
55
48
95 
        Paso Robles
37
35
103 
        Red Hills
37
35
34 
        San Luis Obispo
35
34
36 
Santa Barbara County
        Carpinteria
Good
Good
35 
        Gaviota Coast
Good
Good
38 
        Goleta
Good
Good
29 
        Lompoc
Good
Good
38 
        Paradise Road
Good
Good
33 
        Santa Barbara
Good
Good
29 
        Santa Maria
Good
Good
66 
        Santa Ynez
Good
Good
33 
Santa Rosa Rancheria
aqi not available
aqi not available
94 
Sequoia/Kings Canyon National Parks
48
46
87 
South Lake Tahoe
aqi not available
aqi not available
St. Helena
aqi not available
aqi not available
31 
Tahoe City area
aqi not available
aqi not available
14 
Truckee
aqi not available
aqi not available
37 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
30 
Ukiah
aqi not available
aqi not available
29 
Ventura County Area
        Ojai
45
45
38 
        Oxnard
40
40
29 
        Piru
45
45
36 
        Simi Valley
45
45
37 
        Thousand Oaks
45
45
34 
Western Nevada County
aqi not available
aqi not available
35 
Westmorland
88
113
100 
Willits
aqi not available
aqi not available
29 
Willows
aqi not available
aqi not available
32 
Windsor
aqi not available
aqi not available
13 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
42
39
43 
Yreka
aqi not available
aqi not available
26 
Yuba City/Marysville
53
46
36 
Yucca Vly
49
39
 
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.