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_20200128_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
Tue
Jan 28
Wed
Jan 29
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
31 
Bishop Paiute Tribe
aqi not available
aqi not available
 
Brawley
70
100
29 
Calexico
70
100
21 
Chester
aqi not available
aqi not available
26 
Chico
Good
Good
24 
Death Valley National Park
26
31
34 
El Centro
70
100
37 
Eureka
aqi not available
aqi not available
38 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
36 
Great Basin Air District
aqi not available
aqi not available
31 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
21 
Imperial Valley
70
100
37 
Indio - Twenty Nine Palms Reservation
aqi not available
aqi not available
49 
Joshua Tree National Park
aqi not available
aqi not available
41 
La Grange
aqi not available
aqi not available
 
Lassen Volcanic National Park
34
31
33 
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
37
36
33 
        Anza Vly
37
34
39 
        Banning
42
37
39 
        Barstow
40
34
16 
        Big Bear Lake
42
34
 
        C San Bernardino M
42
35
36 
        C San Bernardino-1
53
32
39 
        C San Bernardino-2
53
32
39 
        Capistrano Vly
46
42
29 
        Central Coastal
46
50
29 
        Central LA CO
57
46
37 
        Central Orange-1
42
38
28 
        Central Orange-2
42
38
28 
        Coachella Vly
41
36
33 
        E San Bernardino
46
35
32 
        E San Fernando Vly
44
36
37 
        E San Gabriel V-1
57
31
48 
        E San Gabriel V-2
57
31
48 
        East Riverside CO
35
35
 
        Hemet/San Jacinto
44
34
39 
        Hesperia
41
34
33 
        Lake Elsinore
43
25
34 
        Metro Riverside CO
55
30
54 
        N Coastal Orange
45
53
13 
        NW Coastal LA
46
31
32 
        NW San Bernardino
59
31
37 
        Norco/Corona
55
30
54 
        North Orange CO
53
33
28 
        Perris Vly
46
25
39 
        Phelan
40
36
38 
        Pomona Walnut Vly
55
32
18 
        S Central LA CO
63
44
24 
        S San Gabriel Vly
61
44
 
        SW Coastal LA
61
43
29 
        SW San Bernardino
61
49
37 
        Saddleback Vly
53
38
29 
        San Gabriel Mts
35
34
48 
        Santa Clarita Vly
48
37
38 
        South Coastal LA
55
42
13 
        Southeast LA CO
63
44
28 
        Temecula Vly
42
38
39 
        Trona
40
32
22 
        Twentynine Palms
35
35
16 
        Victorville
39
34
35 
        W San Bernardino M
42
32
37 
        W San Fernando Vly
37
34
37 
        W San Gabriel Vly
46
38
24 
Mammoth Lakes
aqi not available
aqi not available
20 
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
Good
 
        Hollister
Good
Good
 
        King City
Good
Good
 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
 
        Salinas
Good
Good
32 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
33 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Niland
70
100
15 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
28 
Paradise
Good
Good
 
Point Arena
aqi not available
aqi not available
36 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
39 
Quincy
aqi not available
aqi not available
38 
Red Bluff
Good
Good
30 
Redding
aqi not available
aqi not available
22 
Sacramento Area
        Arden Arcade-Del Paso Manor
42
46
21 
        Auburn
42
38
23 
        Colfax
42
38
27 
        Cool
aqi not available
aqi not available
 
        Davis
38
38
28 
        Elk Grove
42
46
27 
        Folsom
42
46
 
        Lincoln
42
38
22 
        Natomas
42
46
 
        North Highlands
42
46
23 
        Placerville
aqi not available
aqi not available
31 
        Rio Vista
38
38
 
        Roseville-Rocklin
42
38
 
        Sacramento
42
46
21 
        Sloughhouse
42
46
27 
        Vacaville
38
38
26 
        Woodland
38
38
25 
San Diego Area
        San Diego Coast
Good
Moderate
52 
        San Diego Foothills
Good
Good
40 
        San Diego Mesa and Inland Valley
Moderate
Moderate
30 
San Francisco Area
        Concord
37
37
29 
        Fairfield
37
37
35 
        Fremont
38
38
29 
        Livermore
37
37
31 
        Napa
50
42
30 
        Oakland
46
38
40 
        Redwood City
38
38
28 
        San Francisco
46
38
39 
        San Jose
36
40
28 
        San Rafael
50
42
45 
        Santa Rosa
50
42
41 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
50
53
55 
        Fresno
50
50
32 
        Hanford
53
50
29 
        Madera
50
50
27 
        Merced
50
50
37 
        Modesto
55
50
29 
        Stockton
53
35
19 
        Visalia
55
68
38 
San Luis Obispo County
        Atascadero
32
34
24 
        Carrizo Plains
36
36
30 
        Morro Bay
33
33
30 
        Nipomo
44
34
41 
        Paso Robles
31
35
27 
        Red Hills
37
37
35 
        San Luis Obispo
31
35
30 
Santa Barbara County
        Carpinteria
Good
Good
32 
        Gaviota Coast
Good
Good
36 
        Goleta
Good
Good
32 
        Lompoc
Good
Good
33 
        Paradise Road
Good
Good
32 
        Santa Barbara
Good
Good
32 
        Santa Maria
Good
Good
29 
        Santa Ynez
Good
Good
33 
Santa Rosa Rancheria
aqi not available
aqi not available
25 
Sequoia/Kings Canyon National Parks
34
38
23 
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
17 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
 
Ukiah
aqi not available
aqi not available
30 
Ventura County Area
        Ojai
35
35
32 
        Oxnard
35
35
24 
        Piru
40
40
32 
        Simi Valley
40
40
31 
        Thousand Oaks
35
35
27 
Western Nevada County
35
35
29 
Westmorland
70
100
25 
Willits
aqi not available
aqi not available
27 
Willows
aqi not available
aqi not available
31 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
33
36
47 
Yreka
aqi not available
aqi not available
27 
Yuba City/Marysville
29
33
20 
Yucca Vly
40
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.