California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170219_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 19
Mon
Feb 20
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
48 
Bishop Paiute Tribe
aqi not available
aqi not available
48 
Chester
aqi not available
aqi not available
 
Chico
Good
Good
32 
Death Valley National Park
40 
aqi not available
31 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
30 
Greeley Hill
aqi not available
aqi not available
51 
Gridley
Good
Good
39 
Imperial Valley
46 
53 
56 
Joshua Tree National Park
aqi not available
aqi not available
41 
La Grange
aqi not available
aqi not available
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
38 
aqi not available
44 
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
17 
Los Angeles Area
        Antelope Vly
37 
aqi not available
30 
        Anza Vly
46 
aqi not available
36 
        Banning
37 
aqi not available
39 
        Barstow
37 
aqi not available
31 
        Big Bear Lake
37 
aqi not available
 
        C San Bernardino M
46 
aqi not available
38 
        C San Bernardino-1
63 
aqi not available
33 
        C San Bernardino-2
61 
aqi not available
33 
        Capistrano Vly
46 
aqi not available
32 
        Central Coastal
50 
aqi not available
36 
        Central LA CO
55 
aqi not available
59 
        Central Orange-1
38 
aqi not available
31 
        Central Orange-2
59 
aqi not available
36 
        Coachella Vly
46 
aqi not available
31 
        E San Bernardino
50 
aqi not available
26 
        E San Fernando Vly
50 
aqi not available
59 
        E San Gabriel V-1
50 
aqi not available
28 
        E San Gabriel V-2
46 
aqi not available
28 
        East Riverside CO
37 
aqi not available
39 
        Hemet/San Jacinto
42 
aqi not available
36 
        Hesperia
37 
aqi not available
 
        Lake Elsinore
59 
aqi not available
36 
        Metro Riverside CO
59 
aqi not available
28 
        N Coastal Orange
55 
aqi not available
36 
        NW Coastal LA
59 
aqi not available
30 
        NW San Bernardino
50 
aqi not available
33 
        Norco/Corona
57 
aqi not available
31 
        North Orange CO
50 
aqi not available
31 
        Perris Vly
63 
aqi not available
31 
        Phelan
38 
aqi not available
34 
        Pomona Walnut Vly
46 
aqi not available
24 
        S Central LA CO
50 
aqi not available
17 
        S San Gabriel Vly
46 
aqi not available
 
        SW Coastal LA
59 
aqi not available
30 
        SW San Bernardino
37 
aqi not available
33 
        Saddleback Vly
42 
aqi not available
32 
        San Gabriel Mts
46 
aqi not available
37 
        Santa Clarita Vly
38 
aqi not available
37 
        South Coastal LA
63 
aqi not available
30 
        Southeast LA CO
46 
aqi not available
31 
        Temecula Vly
53 
aqi not available
36 
        Trona
37 
aqi not available
29 
        Twentynine Palms
37 
aqi not available
31 
        Victorville
37 
aqi not available
31 
        W San Bernardino M
42 
aqi not available
38 
        W San Fernando Vly
46 
aqi not available
59 
        W San Gabriel Vly
50 
aqi not available
26 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
33 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
14 
        Davenport
Good
Good
 
        Hollister
Good
Good
25 
        King City
Good
Good
15 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
27 
        Salinas
Good
Good
27 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
26 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
Good
Good
 
Owens Lake
aqi not available
aqi not available
17 
Paradise
Good
Good
41 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
17 
Red Bluff
aqi not available
aqi not available
 
Redding
35 
35 
35 
Sacramento Area
        Arden Arcade-Del Paso Manor
42 
38 
32 
        Auburn
46 
29 
35 
        Colfax
46 
29 
23 
        Cool
aqi not available
aqi not available
 
        Davis
38 
29 
36 
        Elk Grove
42 
38 
32 
        Folsom
42 
38 
33 
        Lincoln
46 
29 
31 
        Natomas
42 
38 
30 
        North Highlands
42 
38 
34 
        Placerville
aqi not available
aqi not available
31 
        Rio Vista
38 
29 
18 
        Roseville-Rocklin
46 
29 
31 
        Sacramento
42 
38 
32 
        Sloughhouse
42 
38 
32 
        Vacaville
38 
29 
37 
        Woodland
38 
29 
33 
San Diego Area
        San Diego Coast
Good
Good
38 
        San Diego Foothills
Good
Good
42 
        San Diego Mesa and Inland Valley
Good
Moderate
34 
San Francisco Area
        Concord
37 
31 
36 
        Fairfield
37 
31 
29 
        Fremont
34 
30 
34 
        Livermore
37 
31 
21 
        Napa
53 
33 
35 
        Oakland
50 
33 
36 
        Redwood City
34 
30 
23 
        San Francisco
50 
33 
33 
        San Jose
38 
31 
31 
        San Rafael
53 
33 
32 
        Santa Rosa
53 
33 
25 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
38 
Good
28 
        Fresno
42 
Good
31 
        Hanford
38 
Good
38 
        Madera
29 
Good
29 
        Merced
33 
Good
34 
        Modesto
38 
Good
33 
        Stockton
33 
Good
24 
        Visalia
46 
Good
29 
San Luis Obispo County
        Atascadero
33 
29 
29 
        Carrizo Plains
32 
29 
33 
        Morro Bay
32 
30 
25 
        Nipomo
34 
32 
30 
        Paso Robles
32 
28 
30 
        Red Hills
32 
31 
 
        San Luis Obispo
32 
30 
54 
Santa Barbara County
        Carpinteria
Good
aqi not available
22 
        Gaviota Coast
Good
aqi not available
37 
        Goleta
Good
aqi not available
28 
        Lompoc
Good
aqi not available
39 
        Paradise Road
Good
aqi not available
29 
        Santa Barbara
Good
aqi not available
28 
        Santa Maria
Good
aqi not available
12 
Colorado River Valley
19 
aqi not available
19 
Colorado River Valley
19 
Good
19 
Colorado River Valley
Good
31 
19 
Colorado River Valley
Good
Good
19 
Colorado River Valley
Good
Good
53 
Colorado River Valley
Good
19 
19 
Colorado River Valley
Good
19 
19 
Colorado River Valley
Moderate
Moderate
 
Colorado River Valley
aqi not available
aqi not available
 
Colorado River Valley
Good
19 
19 
Colorado River Valley
Good
19 
19 
Colorado River Valley
Good
Good
19 
Colorado River Valley
Good
Good
19 
Colorado River Valley
Good
Good
19 
Colorado River Valley
Good
Good
19 
Colorado River Valley
Good
Good
19 
Colorado River Valley
Good
Good
19 
Colorado River Valley
Good
Good
19 
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.