California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170226_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
Sun
Feb 26
Mon
Feb 27
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
87 
Bishop Paiute Tribe
aqi not available
aqi not available
87 
Chester
aqi not available
aqi not available
 
Chico
Good
aqi not available
70 
Death Valley National Park
39 
aqi not available
 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
39 
Greeley Hill
aqi not available
aqi not available
59 
Gridley
Good
aqi not available
76 
Imperial Valley
63 
50 
39 
Joshua Tree National Park
aqi not available
aqi not available
41 
La Grange
aqi not available
aqi not available
15 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
38 
aqi not available
43 
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
16 
Los Angeles Area
        Antelope Vly
28 
aqi not available
37 
        Anza Vly
50 
aqi not available
36 
        Banning
46 
aqi not available
36 
        Barstow
37 
aqi not available
32 
        Big Bear Lake
28 
aqi not available
 
        C San Bernardino M
46 
aqi not available
43 
        C San Bernardino-1
61 
aqi not available
35 
        C San Bernardino-2
66 
aqi not available
35 
        Capistrano Vly
50 
aqi not available
29 
        Central Coastal
46 
aqi not available
33 
        Central LA CO
46 
aqi not available
48 
        Central Orange-1
59 
aqi not available
30 
        Central Orange-2
50 
aqi not available
33 
        Coachella Vly
55 
aqi not available
46 
        E San Bernardino
50 
aqi not available
32 
        E San Fernando Vly
37 
aqi not available
48 
        E San Gabriel V-1
55 
aqi not available
30 
        E San Gabriel V-2
55 
aqi not available
30 
        East Riverside CO
29 
aqi not available
44 
        Hemet/San Jacinto
37 
aqi not available
36 
        Hesperia
29 
aqi not available
37 
        Lake Elsinore
57 
aqi not available
35 
        Metro Riverside CO
66 
aqi not available
47 
        N Coastal Orange
38 
aqi not available
34 
        NW Coastal LA
46 
aqi not available
34 
        NW San Bernardino
63 
aqi not available
35 
        Norco/Corona
59 
aqi not available
37 
        North Orange CO
59 
aqi not available
33 
        Perris Vly
50 
aqi not available
31 
        Phelan
50 
aqi not available
32 
        Pomona Walnut Vly
57 
aqi not available
22 
        S Central LA CO
29 
aqi not available
26 
        S San Gabriel Vly
38 
aqi not available
 
        SW Coastal LA
46 
aqi not available
34 
        SW San Bernardino
66 
aqi not available
35 
        Saddleback Vly
50 
aqi not available
30 
        San Gabriel Mts
50 
aqi not available
31 
        Santa Clarita Vly
46 
aqi not available
31 
        South Coastal LA
33 
aqi not available
34 
        Southeast LA CO
55 
aqi not available
30 
        Temecula Vly
55 
aqi not available
36 
        Trona
28 
aqi not available
40 
        Twentynine Palms
28 
aqi not available
32 
        Victorville
29 
aqi not available
31 
        W San Bernardino M
42 
aqi not available
43 
        W San Fernando Vly
38 
aqi not available
48 
        W San Gabriel Vly
46 
aqi not available
33 
Mammoth Lakes
aqi not available
aqi not available
39 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
14 
        Davenport
Good
Good
 
        Hollister
Good
Good
18 
        King City
Good
Good
14 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
        Salinas
Good
Good
18 
        San Lorenzo Valley
Good
Moderate
 
        Santa Cruz
Good
Good
11 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
Good
aqi not available
 
Owens Lake
aqi not available
aqi not available
16 
Paradise
Good
aqi not available
40 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
40 
Red Bluff
aqi not available
aqi not available
 
Redding
61 
57 
61 
Sacramento Area
        Arden Arcade-Del Paso Manor
53 
57 
57 
        Auburn
33 
50 
 
        Colfax
33 
50 
23 
        Cool
aqi not available
aqi not available
 
        Davis
42 
57 
19 
        Elk Grove
53 
57 
19 
        Folsom
53 
57 
51 
        Lincoln
33 
50 
 
        Natomas
53 
57 
        North Highlands
53 
57 
        Placerville
aqi not available
aqi not available
37 
        Rio Vista
42 
57 
25 
        Roseville-Rocklin
33 
50 
20 
        Sacramento
53 
57 
57 
        Sloughhouse
53 
57 
        Vacaville
42 
57 
        Woodland
42 
57 
17 
San Diego Area
        San Diego Coast
Good
Good
40 
        San Diego Foothills
Good
Good
38 
        San Diego Mesa and Inland Valley
Good
Good
37 
San Francisco Area
        Concord
39 
37 
31 
        Fairfield
39 
37 
20 
        Fremont
38 
37 
36 
        Livermore
39 
37 
20 
        Napa
53 
50 
48 
        Oakland
50 
46 
37 
        Redwood City
38 
37 
13 
        San Francisco
50 
46 
42 
        San Jose
37 
36 
22 
        San Rafael
53 
50 
15 
        Santa Rosa
53 
50 
37 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
66 
Moderate
81 
        Fresno
66 
Moderate
        Hanford
66 
Moderate
84 
        Madera
53 
Moderate
10 
        Merced
46 
Good
33 
        Modesto
57 
Moderate
55 
        Stockton
59 
Moderate
60 
        Visalia
66 
Moderate
65 
San Luis Obispo County
        Atascadero
33 
38 
28 
        Carrizo Plains
35 
36 
26 
        Morro Bay
31 
32 
23 
        Nipomo
32 
34 
23 
        Paso Robles
33 
37 
31 
        Red Hills
35 
35 
34 
        San Luis Obispo
33 
33 
24 
Santa Barbara County
        Carpinteria
Good
aqi not available
36 
        Gaviota Coast
Good
aqi not available
39 
        Goleta
Good
aqi not available
22 
        Lompoc
Good
aqi not available
39 
        Paradise Road
Good
aqi not available
29 
        Santa Barbara
Good
aqi not available
23 
        Santa Maria
Good
aqi not available
12 
        Santa Ynez
Good
aqi not available
30 
Santa Rosa Rancheria
aqi not available
aqi not available
31 
Sequoia/Kings Canyon National Parks
38 
aqi not available
39 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
10 
Truckee
aqi not available
aqi not available
72 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
11 
Ventura County Area
        Ojai
40 
45 
30 
        Oxnard
40 
45 
31 
        Piru
40 
45 
29 
        Simi Valley
40 
45 
35 
        Thousand Oaks
40 
45 
31 
Western Nevada County
42 
42 
43 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
42 
aqi not available
39 
Yuba City/Marysville
Moderate
Good
59 
Yucca Vly
29 
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.