California
 
Data and Forecasts courtesy of:
 

 - 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 Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170926_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
Sep 26
Wed
Sep 27
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
38 
Bishop Paiute Tribe
aqi not available
aqi not available
11 
Chester
aqi not available
aqi not available
 
Chico
Good
Good
29 
Death Valley National Park
aqi not available
aqi not available
38 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
38 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
31 
Imperial Valley
51
61
50 
Joshua Tree National Park
aqi not available
aqi not available
39 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
aqi not available
aqi not available
34 
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
24 
Los Angeles Area
        Antelope Vly
46
42
40 
        Anza Vly
50
46
67 
        Banning
50
46
44 
        Barstow
38
42
37 
        Big Bear Lake
42
46
 
        C San Bernardino M
53
67
41 
        C San Bernardino-1
52
61
46 
        C San Bernardino-2
67
59
46 
        Capistrano Vly
67
59
74 
        Central Coastal
67
55
74 
        Central LA CO
67
50
81 
        Central Orange-1
67
57
69 
        Central Orange-2
53
53
69 
        Coachella Vly
46
46
40 
        E San Bernardino
67
67
44 
        E San Fernando Vly
55
50
56 
        E San Gabriel V-1
50
59
44 
        E San Gabriel V-2
67
53
44 
        East Riverside CO
42
46
 
        Hemet/San Jacinto
50
46
67 
        Hesperia
42
46
39 
        Lake Elsinore
67
67
67 
        Metro Riverside CO
67
70
74 
        N Coastal Orange
67
55
55 
        NW Coastal LA
67
50
55 
        NW San Bernardino
67
61
41 
        Norco/Corona
67
66
69 
        North Orange CO
67
53
69 
        Perris Vly
67
57
67 
        Phelan
42
50
40 
        Pomona Walnut Vly
67
55
54 
        S Central LA CO
55
46
44 
        S San Gabriel Vly
53
38
 
        SW Coastal LA
67
50
55 
        SW San Bernardino
53
55
54 
        Saddleback Vly
67
55
74 
        San Gabriel Mts
46
57
54 
        Santa Clarita Vly
67
46
41 
        South Coastal LA
63
50
55 
        Southeast LA CO
55
53
69 
        Temecula Vly
50
67
67 
        Trona
38
46
37 
        Twentynine Palms
42
46
37 
        Victorville
42
46
39 
        W San Bernardino M
46
53
41 
        W San Fernando Vly
67
50
56 
        W San Gabriel Vly
53
53
81 
Mammoth Lakes
aqi not available
aqi not available
17 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
85 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
33 
        Davenport
Good
Good
 
        Hollister
Good
Good
33 
        King City
Good
Good
62 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
 
        Salinas
Good
Good
62 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
30 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
24 
Paradise
Good
Good
40 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
14 
Quincy
aqi not available
aqi not available
30 
Red Bluff
aqi not available
aqi not available
 
Redding
51
aqi not available
70 
Sacramento Area
        Arden Arcade-Del Paso Manor
48
64
58 
        Auburn
48
67
36 
        Colfax
48
67
37 
        Cool
48
61
35 
        Davis
43
50
35 
        Elk Grove
48
64
41 
        Folsom
48
64
42 
        Lincoln
48
67
33 
        Natomas
48
64
 
        North Highlands
48
64
36 
        Placerville
48
61
36 
        Rio Vista
43
50
45 
        Roseville-Rocklin
48
67
31 
        Sacramento
48
64
40 
        Sloughhouse
48
64
40 
        Vacaville
43
50
32 
        Woodland
43
50
47 
San Diego Area
        San Diego Coast
Moderate
Moderate
56 
        San Diego Foothills
Good
Moderate
61 
        San Diego Mesa and Inland Valley
Good
Moderate
62 
San Francisco Area
        Concord
61
101
36 
        Fairfield
61
101
34 
        Fremont
48
71
68 
        Livermore
61
101
37 
        Napa
59
53
35 
        Oakland
57
53
61 
        Redwood City
48
71
68 
        San Francisco
57
53
52 
        San Jose
67
84
53 
        San Rafael
59
53
48 
        Santa Rosa
59
53
37 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
58
Moderate
67 
        Fresno
49
Moderate
49 
        Hanford
46
Good
63 
        Madera
44
Good
51 
        Merced
43
Good
30 
        Modesto
44
Good
33 
        Stockton
37
Good
56 
        Visalia
48
Moderate
61 
San Luis Obispo County
        Atascadero
48
49
44 
        Carrizo Plains
55
54
48 
        Morro Bay
48
47
49 
        Nipomo
50
49
53 
        Paso Robles
48
44
49 
        Red Hills
55
54
49 
        San Luis Obispo
50
49
51 
Santa Barbara County
        Carpinteria
Good
aqi not available
36 
        Gaviota Coast
Good
aqi not available
44 
        Goleta
Good
aqi not available
43 
        Lompoc
Good
aqi not available
48 
        Paradise Road
Good
aqi not available
39 
        Santa Barbara
Good
aqi not available
44 
        Santa Maria
Good
aqi not available
39 
        Santa Ynez
Good
aqi not available
38 
Santa Rosa Rancheria
aqi not available
aqi not available
69 
Sequoia/Kings Canyon National Parks
aqi not available
aqi not available
55 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
30 
Truckee
aqi not available
aqi not available
30 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
43 
Ventura County Area
        Ojai
55
60
46 
        Oxnard
50
55
49 
        Piru
55
65
37 
        Simi Valley
55
65
42 
        Thousand Oaks
55
55
41 
Western Nevada County
50
50
40 
Willows
Good
aqi not available
56 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
aqi not available
aqi not available
50 
Yuba City/Marysville
Good
aqi not available
43 
Yucca Vly
46
46
 
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.