California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170425_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: 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
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
Apr 25
Wed
Apr 26
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
18 
Bishop Paiute Tribe
aqi not available
aqi not available
18 
Chester
aqi not available
aqi not available
 
Chico
Good
aqi not available
25 
Death Valley National Park
44 
aqi not available
51 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
23 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
38 
Imperial Valley
61 
58 
111 
Joshua Tree National Park
aqi not available
aqi not available
47 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
36 
aqi not available
40 
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
23 
Los Angeles Area
        Antelope Vly
42 
aqi not available
37 
        Anza Vly
50 
aqi not available
44 
        Banning
100 
aqi not available
57 
        Barstow
46 
aqi not available
36 
        Big Bear Lake
67 
aqi not available
 
        C San Bernardino M
100 
aqi not available
47 
        C San Bernardino-1
61 
aqi not available
33 
        C San Bernardino-2
67 
aqi not available
33 
        Capistrano Vly
50 
aqi not available
37 
        Central Coastal
38 
aqi not available
37 
        Central LA CO
50 
aqi not available
47 
        Central Orange-1
50 
aqi not available
43 
        Central Orange-2
38 
aqi not available
43 
        Coachella Vly
100 
aqi not available
51 
        E San Bernardino
67 
aqi not available
21 
        E San Fernando Vly
42 
aqi not available
46 
        E San Gabriel V-1
55 
aqi not available
43 
        E San Gabriel V-2
53 
aqi not available
43 
        East Riverside CO
50 
aqi not available
46 
        Hemet/San Jacinto
50 
aqi not available
44 
        Hesperia
50 
aqi not available
44 
        Lake Elsinore
57 
aqi not available
37 
        Metro Riverside CO
100 
aqi not available
49 
        N Coastal Orange
29 
aqi not available
47 
        NW Coastal LA
42 
aqi not available
47 
        NW San Bernardino
59 
aqi not available
33 
        Norco/Corona
57 
aqi not available
43 
        North Orange CO
55 
aqi not available
43 
        Perris Vly
59 
aqi not available
39 
        Phelan
50 
aqi not available
46 
        Pomona Walnut Vly
53 
aqi not available
25 
        S Central LA CO
29 
aqi not available
20 
        S San Gabriel Vly
37 
aqi not available
 
        SW Coastal LA
37 
aqi not available
47 
        SW San Bernardino
59 
aqi not available
33 
        Saddleback Vly
38 
aqi not available
43 
        San Gabriel Mts
59 
aqi not available
43 
        Santa Clarita Vly
55 
aqi not available
43 
        South Coastal LA
29 
aqi not available
47 
        Southeast LA CO
55 
aqi not available
43 
        Temecula Vly
55 
aqi not available
44 
        Trona
46 
aqi not available
41 
        Twentynine Palms
46 
aqi not available
36 
        Victorville
50 
aqi not available
38 
        W San Bernardino M
50 
aqi not available
47 
        W San Fernando Vly
46 
aqi not available
46 
        W San Gabriel Vly
55 
aqi not available
40 
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
Good
 
        Davenport
Good
Good
 
        Hollister
Good
Good
 
        King City
Good
Good
 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
37 
Good
34 
        Salinas
Good
Good
34 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
23 
Paradise
Good
aqi not available
35 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
21 
Red Bluff
aqi not available
aqi not available
 
Redding
aqi not available
aqi not available
35 
Sacramento Area
        Arden Arcade-Del Paso Manor
29 
29 
37 
        Auburn
17 
25 
31 
        Colfax
17 
25 
23 
        Cool
aqi not available
aqi not available
17 
        Davis
29 
29 
29 
        Elk Grove
29 
29 
28 
        Folsom
29 
29 
31 
        Lincoln
17 
25 
29 
        Natomas
29 
29 
22 
        North Highlands
29 
29 
 
        Placerville
aqi not available
aqi not available
27 
        Rio Vista
29 
29 
10 
        Roseville-Rocklin
17 
25 
30 
        Sacramento
29 
29 
37 
        Sloughhouse
29 
29 
20 
        Vacaville
29 
29 
32 
        Woodland
29 
29 
26 
San Diego Area
        San Diego Coast
Good
aqi not available
42 
        San Diego Foothills
Good
aqi not available
36 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
12 
San Francisco Area
        Concord
44 
Good
38 
        Fairfield
44 
Good
26 
        Fremont
43 
Good
38 
        Livermore
44 
Good
32 
        Napa
42 
Good
17 
        Oakland
40 
Good
38 
        Redwood City
43 
Good
        San Francisco
40 
Good
        San Jose
42 
Good
37 
        San Rafael
42 
Good
        Santa Rosa
42 
Good
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
64 
Moderate
33 
        Fresno
64 
Moderate
34 
        Hanford
58 
Moderate
32 
        Madera
51 
Moderate
31 
        Merced
47 
Good
33 
        Modesto
49 
Good
35 
        Stockton
47 
Good
31 
        Visalia
64 
Moderate
31 
San Luis Obispo County
        Atascadero
40 
43 
33 
        Carrizo Plains
44 
45 
33 
        Morro Bay
40 
42 
19 
        Nipomo
95 
92 
30 
        Paso Robles
45 
46 
36 
        Red Hills
44 
46 
32 
        San Luis Obispo
40 
42 
35 
Santa Barbara County
        Carpinteria
Good
aqi not available
 
        Gaviota Coast
Good
aqi not available
 
        Goleta
Good
aqi not available
21 
        Lompoc
Good
aqi not available
26 
        Paradise Road
Good
aqi not available
 
        Santa Barbara
Good
aqi not available
33 
        Santa Maria
Good
aqi not available
29 
        Santa Ynez
Good
aqi not available
 
Santa Rosa Rancheria
aqi not available
aqi not available
Sequoia/Kings Canyon National Parks
42 
aqi not available
37 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
20 
Truckee
aqi not available
aqi not available
14 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
24 
Ventura County Area
        Ojai
50 
55 
35 
        Oxnard
46 
55 
43 
        Piru
50 
60 
33 
        Simi Valley
50 
60 
13 
        Thousand Oaks
50 
55 
44 
Western Nevada County
70 
70 
36 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
40 
aqi not available
35 
Yuba City/Marysville
Good
aqi not available
23 
Yucca Vly
50 
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.