California
 
Data courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20161001_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
Sat
Oct 1
Sun
Oct 2
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
22 
Bishop Paiute Tribe
aqi not available
aqi not available
22 
Chester
aqi not available
aqi not available
 
Chico
Good
aqi not available
57 
Death Valley National Park
44 
aqi not available
50 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
20 
Greeley Hill
aqi not available
aqi not available
40 
Gridley
Good
aqi not available
55 
Imperial Valley
54 
103 
45 
Joshua Tree National Park
aqi not available
aqi not available
30 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
41 
aqi not available
37 
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 
46 
42 
        Anza Vly
55 
55 
38 
        Banning
67 
67 
45 
        Barstow
46 
46 
24 
        Big Bear Lake
67 
67 
 
        C San Bernardino M
132 
132 
36 
        C San Bernardino-1
100 
100 
56 
        C San Bernardino-2
67 
67 
56 
        Capistrano Vly
57 
57 
13 
        Central Coastal
55 
50 
15 
        Central LA CO
67 
57 
63 
        Central Orange-1
55 
67 
42 
        Central Orange-2
59 
57 
42 
        Coachella Vly
100 
100 
35 
        E San Bernardino
100 
100 
27 
        E San Fernando Vly
67 
100 
63 
        E San Gabriel V-1
67 
57 
37 
        E San Gabriel V-2
67 
55 
37 
        East Riverside CO
50 
50 
36 
        Hemet/San Jacinto
67 
67 
38 
        Hesperia
50 
50 
39 
        Lake Elsinore
100 
100 
42 
        Metro Riverside CO
100 
100 
59 
        N Coastal Orange
67 
50 
33 
        NW Coastal LA
55 
67 
33 
        NW San Bernardino
67 
100 
56 
        Norco/Corona
67 
100 
48 
        North Orange CO
61 
67 
42 
        Perris Vly
100 
100 
 
        Phelan
67 
67 
31 
        Pomona Walnut Vly
67 
67 
        S Central LA CO
46 
42 
        S San Gabriel Vly
46 
46 
        SW Coastal LA
57 
50 
33 
        SW San Bernardino
100 
100 
56 
        Saddleback Vly
50 
67 
42 
        San Gabriel Mts
67 
67 
37 
        Santa Clarita Vly
67 
67 
32 
        South Coastal LA
59 
55 
33 
        Southeast LA CO
59 
67 
42 
        Temecula Vly
100 
100 
38 
        Trona
46 
42 
42 
        Twentynine Palms
67 
67 
24 
        Victorville
50 
50 
11 
        W San Bernardino M
67 
100 
56 
        W San Fernando Vly
53 
50 
63 
        W San Gabriel Vly
59 
59 
49 
Mammoth Lakes
aqi not available
aqi not available
20 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
51 
Mono Lake
aqi not available
aqi not available
16 
Monterey Bay Area
        Carmel Valley
Good
Good
25 
        Davenport
Good
Good
 
        Hollister
Moderate
Good
29 
        King City
Good
Good
33 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
30 
        Salinas
Good
Good
33 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
18 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
33 
Paradise
Good
aqi not available
38 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
 
Red Bluff
aqi not available
aqi not available
 
Redding
65 
55 
52 
Sacramento Area
        Arden Arcade-Del Paso Manor
41 
44 
31 
        Auburn
38 
38 
31 
        Colfax
38 
38 
44 
        Cool
50 
46 
31 
        Davis
36 
34 
18 
        Elk Grove
41 
44 
26 
        Folsom
41 
44 
27 
        Lincoln
38 
38 
33 
        Natomas
41 
44 
23 
        North Highlands
41 
44 
24 
        Placerville
50 
46 
39 
        Rio Vista
36 
34 
24 
        Roseville-Rocklin
38 
38 
28 
        Sacramento
41 
44 
31 
        Sloughhouse
41 
44 
26 
        Vacaville
36 
34 
26 
        Woodland
36 
34 
21 
San Diego Area
        San Diego Coast
Moderate
Good
54 
        San Diego Foothills
Moderate
Good
17 
        San Diego Mesa and Inland Valley
Moderate
Moderate
73 
San Francisco Area
        Concord
46 
42 
28 
        Fairfield
46 
42 
33 
        Fremont
50 
46 
30 
        Livermore
46 
42 
29 
        Napa
50 
46 
22 
        Oakland
50 
46 
30 
        Redwood City
50 
46 
20 
        San Francisco
50 
46 
28 
        San Jose
61 
57 
28 
        San Rafael
50 
46 
31 
        Santa Rosa
50 
46 
17 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
52 
Moderate
62 
        Fresno
48 
Good
23 
        Hanford
52 
Moderate
48 
        Madera
43 
Good
 
        Merced
37 
Good
37 
        Modesto
39 
Good
39 
        Stockton
37 
Good
30 
        Visalia
51 
Moderate
57 
San Luis Obispo County
        Atascadero
41 
40 
28 
        Carrizo Plains
41 
40 
17 
        Morro Bay
29 
28 
22 
        Nipomo
88 
90 
46 
        Paso Robles
40 
39 
28 
        Red Hills
43 
40 
32 
        San Luis Obispo
29 
28 
34 
Santa Barbara County
        Carpinteria
Good
aqi not available
21 
        Gaviota Coast
Good
aqi not available
31 
        Goleta
Good
aqi not available
28 
        Lompoc
Good
aqi not available
49 
        Paradise Road
Good
aqi not available
19 
        Santa Barbara
Good
aqi not available
18 
        Santa Maria
Good
aqi not available
41 
        Santa Ynez
Good
aqi not available
14 
Santa Rosa Rancheria
aqi not available
aqi not available
43 
Sequoia/Kings Canyon National Parks
48 
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
 
Tuolumne City
aqi not available
aqi not available
18 
Tuolumne County
aqi not available
aqi not available
31 
Ventura County Area
        Ojai
45 
45 
39 
        Oxnard
50 
50 
41 
        Piru
45 
45 
29 
        Simi Valley
45 
45 
40 
        Thousand Oaks
45 
45 
24 
Western Nevada County
45 
45 
44 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
44 
aqi not available
124 
Yuba City/Marysville
Moderate
aqi not available
45 
Yucca Vly
50 
50 
 
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.