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_20180522_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
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
May 22
Wed
May 23
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
30 
Bishop Paiute Tribe
aqi not available
aqi not available
Chester
aqi not available
aqi not available
35 
Chico
Moderate
Moderate
51 
Death Valley National Park
43
aqi not available
51 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
14 
Great Basin Air District
aqi not available
aqi not available
30 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
43 
Imperial Valley
64
77
36 
Joshua Tree National Park
aqi not available
aqi not available
51 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
39
aqi not available
23 
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
33 
Los Angeles Area
        Antelope Vly
46
aqi not available
35 
        Anza Vly
46
aqi not available
40 
        Banning
67
aqi not available
30 
        Barstow
46
aqi not available
34 
        Big Bear Lake
67
aqi not available
 
        C San Bernardino M
67
aqi not available
28 
        C San Bernardino-1
53
aqi not available
36 
        C San Bernardino-2
46
aqi not available
36 
        Capistrano Vly
38
aqi not available
32 
        Central Coastal
33
aqi not available
32 
        Central LA CO
38
aqi not available
62 
        Central Orange-1
28
aqi not available
30 
        Central Orange-2
38
aqi not available
30 
        Coachella Vly
67
aqi not available
33 
        E San Bernardino
46
aqi not available
22 
        E San Fernando Vly
33
aqi not available
62 
        E San Gabriel V-1
42
aqi not available
29 
        E San Gabriel V-2
37
aqi not available
29 
        East Riverside CO
46
aqi not available
 
        Hemet/San Jacinto
46
aqi not available
34 
        Hesperia
46
aqi not available
31 
        Lake Elsinore
67
aqi not available
40 
        Metro Riverside CO
42
aqi not available
31 
        N Coastal Orange
37
aqi not available
33 
        NW Coastal LA
37
aqi not available
33 
        NW San Bernardino
42
aqi not available
36 
        Norco/Corona
37
aqi not available
31 
        North Orange CO
29
aqi not available
30 
        Perris Vly
46
aqi not available
34 
        Phelan
46
aqi not available
43 
        Pomona Walnut Vly
33
aqi not available
23 
        S Central LA CO
38
aqi not available
29 
        S San Gabriel Vly
37
aqi not available
 
        SW Coastal LA
33
aqi not available
33 
        SW San Bernardino
33
aqi not available
36 
        Saddleback Vly
37
aqi not available
32 
        San Gabriel Mts
37
aqi not available
51 
        Santa Clarita Vly
46
aqi not available
51 
        South Coastal LA
38
aqi not available
33 
        Southeast LA CO
33
aqi not available
30 
        Temecula Vly
29
aqi not available
40 
        Trona
37
aqi not available
34 
        Twentynine Palms
46
aqi not available
34 
        Victorville
46
aqi not available
26 
        W San Bernardino M
46
aqi not available
36 
        W San Fernando Vly
61
aqi not available
62 
        W San Gabriel Vly
38
aqi not available
62 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
29 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
aqi not available
19 
        Davenport
Good
aqi not available
 
        Hollister
Good
aqi not available
26 
        King City
Good
aqi not available
27 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
aqi not available
 
        Pinnacles National Monument
Good
aqi not available
22 
        Salinas
Good
aqi not available
27 
        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
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
33 
Paradise
Moderate
Moderate
 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
23 
Red Bluff
aqi not available
aqi not available
39 
Redding
aqi not available
aqi not available
20 
Sacramento Area
        Arden Arcade-Del Paso Manor
44
42
 
        Auburn
46
45
20 
        Colfax
46
45
48 
        Cool
47
46
19 
        Davis
39
37
48 
        Elk Grove
44
42
 
        Folsom
44
42
 
        Lincoln
46
45
 
        Natomas
44
42
 
        North Highlands
44
42
 
        Placerville
47
46
19 
        Rio Vista
39
37
14 
        Roseville-Rocklin
46
45
26 
        Sacramento
44
42
25 
        Sloughhouse
44
42
 
        Vacaville
39
37
28 
        Woodland
39
37
45 
San Diego Area
        San Diego Coast
Good
aqi not available
36 
        San Diego Foothills
Good
aqi not available
32 
        San Diego Mesa and Inland Valley
Good
aqi not available
42 
San Francisco Area
        Concord
37
42
35 
        Fairfield
37
42
27 
        Fremont
38
29
28 
        Livermore
37
42
27 
        Napa
46
42
 
        Oakland
50
46
45 
        Redwood City
38
29
25 
        San Francisco
50
46
43 
        San Jose
39
31
24 
        San Rafael
46
42
45 
        Santa Rosa
46
42
40 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
50
Good
43 
        Fresno
47
Good
40 
        Hanford
44
Good
19 
        Madera
43
Good
16 
        Merced
41
Good
40 
        Modesto
44
Good
37 
        Stockton
40
Good
44 
        Visalia
48
Good
43 
San Luis Obispo County
        Atascadero
33
36
23 
        Carrizo Plains
37
40
19 
        Morro Bay
34
36
30 
        Nipomo
35
36
29 
        Paso Robles
38
39
28 
        Red Hills
38
40
24 
        San Luis Obispo
36
37
29 
Santa Barbara County
        Carpinteria
Good
Good
26 
        Gaviota Coast
Good
Good
30 
        Goleta
Good
Good
33 
        Lompoc
Good
Good
31 
        Paradise Road
Good
Good
17 
        Santa Barbara
Good
Good
28 
        Santa Maria
Good
Good
26 
        Santa Ynez
Good
Good
26 
Santa Rosa Rancheria
aqi not available
aqi not available
46 
Sequoia/Kings Canyon National Parks
42
aqi not available
63 
South Lake Tahoe
aqi not available
aqi not available
Tahoe City area
aqi not available
aqi not available
12 
Truckee
aqi not available
aqi not available
10 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
22 
Ventura County Area
        Ojai
50
50
48 
        Oxnard
35
40
35 
        Piru
50
45
40 
        Simi Valley
45
45
38 
        Thousand Oaks
40
45
46 
Western Nevada County
44
46
29 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
38 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
38
aqi not available
25 
Yreka
aqi not available
aqi not available
29 
Yuba City/Marysville
44
aqi not available
53 
Yucca Vly
46
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.