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_20171022_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
Oct 22
Mon
Oct 23
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
42 
Bishop Paiute Tribe
aqi not available
aqi not available
22 
Chester
aqi not available
aqi not available
13 
Chico
Good
Good
30 
Death Valley National Park
34
36
34 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
11 
Great Basin Air District
aqi not available
aqi not available
42 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Good
13 
Imperial Valley
44
42
44 
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
35
38
24 
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
15 
Los Angeles Area
        Antelope Vly
59
46
38 
        Anza Vly
59
53
45 
        Banning
67
67
41 
        Barstow
46
46
35 
        Big Bear Lake
67
50
 
        C San Bernardino M
132
50
39 
        C San Bernardino-1
63
73
51 
        C San Bernardino-2
100
63
51 
        Capistrano Vly
63
67
84 
        Central Coastal
57
67
84 
        Central LA CO
66
67
58 
        Central Orange-1
67
68
49 
        Central Orange-2
57
68
49 
        Coachella Vly
67
67
44 
        E San Bernardino
100
53
47 
        E San Fernando Vly
61
59
47 
        E San Gabriel V-1
67
59
50 
        E San Gabriel V-2
67
61
50 
        East Riverside CO
51
50
 
        Hemet/San Jacinto
55
53
45 
        Hesperia
51
46
38 
        Lake Elsinore
67
67
41 
        Metro Riverside CO
67
71
39 
        N Coastal Orange
67
68
18 
        NW Coastal LA
63
68
44 
        NW San Bernardino
67
57
51 
        Norco/Corona
70
67
49 
        North Orange CO
67
68
50 
        Perris Vly
67
56
45 
        Phelan
46
50
43 
        Pomona Walnut Vly
59
59
58 
        S Central LA CO
61
67
43 
        S San Gabriel Vly
67
67
 
        SW Coastal LA
67
67
44 
        SW San Bernardino
63
61
58 
        Saddleback Vly
67
67
84 
        San Gabriel Mts
59
52
87 
        Santa Clarita Vly
59
50
41 
        South Coastal LA
63
70
44 
        Southeast LA CO
66
67
49 
        Temecula Vly
67
67
45 
        Trona
50
46
35 
        Twentynine Palms
46
51
35 
        Victorville
51
50
34 
        W San Bernardino M
67
53
51 
        W San Fernando Vly
61
67
47 
        W San Gabriel Vly
67
59
87 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
26 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Moderate
Good
36 
        Davenport
Good
Good
 
        Hollister
Moderate
Moderate
37 
        King City
Moderate
Moderate
37 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
38 
        Salinas
Good
Good
63 
        San Lorenzo Valley
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
 
        Santa Cruz
Moderate
Moderate
63 
        Scotts Valley
Moderate
Moderate
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
15 
Paradise
Good
Good
34 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
11 
Quincy
aqi not available
aqi not available
11 
Red Bluff
aqi not available
aqi not available
32 
Redding
50
46
50 
Sacramento Area
        Arden Arcade-Del Paso Manor
53
53
34 
        Auburn
41
51
33 
        Colfax
41
51
37 
        Cool
46
51
31 
        Davis
50
53
31 
        Elk Grove
53
53
31 
        Folsom
53
53
31 
        Lincoln
41
51
 
        Natomas
53
53
 
        North Highlands
53
53
31 
        Placerville
46
51
34 
        Rio Vista
50
53
        Roseville-Rocklin
41
51
27 
        Sacramento
53
53
31 
        Sloughhouse
53
53
31 
        Vacaville
50
53
32 
        Woodland
50
53
33 
San Diego Area
        San Diego Coast
Moderate
Unhealthy for Sensitive Groups
55 
        San Diego Foothills
Moderate
Moderate
64 
        San Diego Mesa and Inland Valley
Moderate
Unhealthy for Sensitive Groups
48 
San Francisco Area
        Concord
46
42
37 
        Fairfield
46
42
40 
        Fremont
42
29
31 
        Livermore
46
42
40 
        Napa
57
78
57 
        Oakland
53
68
35 
        Redwood City
42
29
31 
        San Francisco
53
68
19 
        San Jose
50
33
38 
        San Rafael
57
78
39 
        Santa Rosa
57
78
31 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
62
70
74 
        Fresno
50
72
47 
        Hanford
50
78
51 
        Madera
42
50
42 
        Merced
50
62
35 
        Modesto
38
59
38 
        Stockton
50
42
 
        Visalia
46
57
74 
San Luis Obispo County
        Atascadero
43
46
44 
        Carrizo Plains
49
55
44 
        Morro Bay
36
38
43 
        Nipomo
47
42
45 
        Paso Robles
37
39
44 
        Red Hills
49
53
44 
        San Luis Obispo
36
38
44 
Santa Barbara County
        Carpinteria
Moderate
Moderate
34 
        Gaviota Coast
Moderate
Moderate
45 
        Goleta
Moderate
Moderate
39 
        Lompoc
Moderate
Moderate
48 
        Paradise Road
Moderate
Moderate
35 
        Santa Barbara
Moderate
Moderate
41 
        Santa Maria
Good
Moderate
45 
        Santa Ynez
Good
Moderate
44 
Santa Rosa Rancheria
aqi not available
aqi not available
44 
Sequoia/Kings Canyon National Parks
40
46
52 
South Lake Tahoe
aqi not available
aqi not available
Tahoe City area
aqi not available
aqi not available
Truckee
aqi not available
aqi not available
28 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
40 
Ventura County Area
        Ojai
55
60
39 
        Oxnard
60
65
42 
        Piru
70
75
37 
        Simi Valley
70
75
38 
        Thousand Oaks
70
75
39 
Western Nevada County
45
45
43 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
32 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
38
40
45 
Yuba City/Marysville
Moderate
Moderate
26 
Yucca Vly
51
51
 
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.