California
 
Data courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20160930_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
Fri
Sep 30
Sat
Oct 1
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
26 
Bishop Paiute Tribe
aqi not available
aqi not available
26 
Chester
aqi not available
aqi not available
11 
Chico
Good
Good
77 
Death Valley National Park
44 
44 
67 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
31 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
91 
Imperial Valley
57 
54 
45 
Joshua Tree National Park
aqi not available
aqi not available
61 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
41 
41 
38 
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 
61 
        Anza Vly
46 
55 
47 
        Banning
67 
67 
80 
        Barstow
46 
46 
64 
        Big Bear Lake
67 
67 
 
        C San Bernardino M
100 
132 
100 
        C San Bernardino-1
67 
100 
101 
        C San Bernardino-2
67 
67 
101 
        Capistrano Vly
50 
57 
58 
        Central Coastal
46 
55 
58 
        Central LA CO
55 
67 
54 
        Central Orange-1
50 
55 
39 
        Central Orange-2
50 
59 
42 
        Coachella Vly
67 
100 
80 
        E San Bernardino
67 
100 
105 
        E San Fernando Vly
57 
67 
54 
        E San Gabriel V-1
67 
67 
48 
        E San Gabriel V-2
57 
67 
48 
        East Riverside CO
50 
50 
40 
        Hemet/San Jacinto
50 
67 
84 
        Hesperia
50 
50 
93 
        Lake Elsinore
67 
100 
90 
        Metro Riverside CO
67 
100 
93 
        N Coastal Orange
46 
67 
42 
        NW Coastal LA
57 
55 
40 
        NW San Bernardino
67 
67 
61 
        Norco/Corona
67 
67 
93 
        North Orange CO
46 
61 
40 
        Perris Vly
67 
100 
84 
        Phelan
67 
67 
80 
        Pomona Walnut Vly
50 
67 
39 
        S Central LA CO
50 
46 
37 
        S San Gabriel Vly
46 
46 
35 
        SW Coastal LA
59 
57 
38 
        SW San Bernardino
67 
100 
61 
        Saddleback Vly
46 
50 
58 
        San Gabriel Mts
46 
67 
51 
        Santa Clarita Vly
67 
67 
51 
        South Coastal LA
61 
59 
31 
        Southeast LA CO
59 
59 
39 
        Temecula Vly
50 
100 
47 
        Trona
46 
46 
61 
        Twentynine Palms
46 
67 
64 
        Victorville
50 
50 
67 
        W San Bernardino M
67 
67 
100 
        W San Fernando Vly
63 
53 
54 
        W San Gabriel Vly
67 
59 
42 
Mammoth Lakes
aqi not available
aqi not available
31 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
34 
Mono Lake
aqi not available
aqi not available
14 
Monterey Bay Area
        Carmel Valley
Good
Good
 
        Davenport
Good
Good
 
        Hollister
Moderate
Moderate
 
        King City
Good
Good
 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Moderate
Good
 
        Pinnacles National Monument
Good
Good
48 
        Salinas
Moderate
Good
48 
        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
33 
Paradise
Good
Good
45 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
10 
Quincy
aqi not available
aqi not available
16 
Red Bluff
aqi not available
aqi not available
 
Redding
60 
65 
54 
Sacramento Area
        Arden Arcade-Del Paso Manor
33 
41 
57 
        Auburn
33 
38 
46 
        Colfax
33 
38 
47 
        Cool
50 
50 
47 
        Davis
35 
36 
33 
        Elk Grove
33 
41 
55 
        Folsom
33 
41 
43 
        Lincoln
33 
38 
41 
        Natomas
33 
41 
38 
        North Highlands
33 
41 
39 
        Placerville
50 
50 
67 
        Rio Vista
35 
36 
42 
        Roseville-Rocklin
33 
38 
41 
        Sacramento
33 
41 
57 
        Sloughhouse
33 
41 
45 
        Vacaville
35 
36 
37 
        Woodland
35 
36 
37 
San Diego Area
        San Diego Coast
Good
Moderate
48 
        San Diego Foothills
Moderate
Moderate
50 
        San Diego Mesa and Inland Valley
Moderate
Moderate
41 
San Francisco Area
        Concord
42 
46 
50 
        Fairfield
42 
46 
41 
        Fremont
46 
50 
43 
        Livermore
42 
46 
37 
        Napa
50 
50 
40 
        Oakland
50 
50 
41 
        Redwood City
46 
50 
43 
        San Francisco
50 
50 
44 
        San Jose
63 
61 
46 
        San Rafael
50 
50 
56 
        Santa Rosa
50 
50 
33 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
91 
52 
87 
        Fresno
87 
48 
74 
        Hanford
92 
52 
80 
        Madera
73 
43 
50 
        Merced
66 
37 
54 
        Modesto
64 
39 
78 
        Stockton
63 
37 
46 
        Visalia
62 
51 
78 
San Luis Obispo County
        Atascadero
42 
41 
32 
        Carrizo Plains
44 
41 
31 
        Morro Bay
29 
29 
31 
        Nipomo
47 
88 
62 
        Paso Robles
42 
40 
36 
        Red Hills
45 
43 
35 
        San Luis Obispo
29 
29 
60 
Santa Barbara County
        Carpinteria
Good
Good
32 
        Gaviota Coast
Good
Good
38 
        Goleta
Good
Good
52 
        Lompoc
Good
Good
53 
        Paradise Road
Good
Good
44 
        Santa Barbara
Good
Good
35 
        Santa Maria
Good
Good
51 
        Santa Ynez
Good
Good
35 
Santa Rosa Rancheria
aqi not available
aqi not available
85 
Sequoia/Kings Canyon National Parks
49 
48 
100 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
19 
Truckee
aqi not available
aqi not available
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
58 
Ventura County Area
        Ojai
49 
45 
49 
        Oxnard
50 
50 
40 
        Piru
47 
45 
44 
        Simi Valley
46 
45 
44 
        Thousand Oaks
44 
45 
44 
Western Nevada County
45 
45 
50 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
44 
44 
24 
Yuba City/Marysville
Moderate
Moderate
53 
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.