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_20171023_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
Mon
Oct 23
Tue
Oct 24
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
23 
Bishop Paiute Tribe
aqi not available
aqi not available
21 
Chester
aqi not available
aqi not available
52 
Chico
Good
aqi not available
23 
Death Valley National Park
36
aqi not available
33 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
28 
Great Basin Air District
aqi not available
aqi not available
23 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
23 
Imperial Valley
42
37
32 
Joshua Tree National Park
aqi not available
aqi not available
36 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
38
aqi not available
19 
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
12 
Los Angeles Area
        Antelope Vly
46
aqi not available
23 
        Anza Vly
53
aqi not available
34 
        Banning
67
aqi not available
31 
        Barstow
46
aqi not available
        Big Bear Lake
50
aqi not available
 
        C San Bernardino M
50
aqi not available
22 
        C San Bernardino-1
73
aqi not available
50 
        C San Bernardino-2
63
aqi not available
50 
        Capistrano Vly
67
aqi not available
25 
        Central Coastal
67
aqi not available
25 
        Central LA CO
67
aqi not available
55 
        Central Orange-1
68
aqi not available
48 
        Central Orange-2
68
aqi not available
48 
        Coachella Vly
67
aqi not available
21 
        E San Bernardino
53
aqi not available
29 
        E San Fernando Vly
59
aqi not available
55 
        E San Gabriel V-1
59
aqi not available
38 
        E San Gabriel V-2
61
aqi not available
38 
        East Riverside CO
50
aqi not available
 
        Hemet/San Jacinto
53
aqi not available
34 
        Hesperia
46
aqi not available
41 
        Lake Elsinore
67
aqi not available
21 
        Metro Riverside CO
71
aqi not available
37 
        N Coastal Orange
68
aqi not available
42 
        NW Coastal LA
68
aqi not available
42 
        NW San Bernardino
57
aqi not available
50 
        Norco/Corona
67
aqi not available
48 
        North Orange CO
68
aqi not available
48 
        Perris Vly
56
aqi not available
34 
        Phelan
50
aqi not available
31 
        Pomona Walnut Vly
59
aqi not available
        S Central LA CO
67
aqi not available
        S San Gabriel Vly
67
aqi not available
 
        SW Coastal LA
67
aqi not available
42 
        SW San Bernardino
61
aqi not available
50 
        Saddleback Vly
67
aqi not available
48 
        San Gabriel Mts
52
aqi not available
38 
        Santa Clarita Vly
50
aqi not available
33 
        South Coastal LA
70
aqi not available
42 
        Southeast LA CO
67
aqi not available
48 
        Temecula Vly
67
aqi not available
34 
        Trona
46
aqi not available
17 
        Twentynine Palms
51
aqi not available
        Victorville
50
aqi not available
10 
        W San Bernardino M
53
aqi not available
50 
        W San Fernando Vly
67
aqi not available
55 
        W San Gabriel Vly
59
aqi not available
51 
Mammoth Lakes
aqi not available
aqi not available
17 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
45 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
22 
        Davenport
Good
Good
 
        Hollister
Moderate
Good
29 
        King City
Moderate
Good
34 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
21 
        Salinas
Good
Good
75 
        San Lorenzo Valley
Unhealthy for Sensitive Groups
Moderate
 
        Santa Cruz
Moderate
Moderate
75 
        Scotts Valley
Moderate
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
18 
Paradise
Good
aqi not available
30 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
97 
Quincy
aqi not available
aqi not available
78 
Red Bluff
aqi not available
aqi not available
25 
Redding
46
aqi not available
43 
Sacramento Area
        Arden Arcade-Del Paso Manor
53
74
23 
        Auburn
51
71
25 
        Colfax
51
71
        Cool
51
74
18 
        Davis
53
64
23 
        Elk Grove
53
74
        Folsom
53
74
19 
        Lincoln
51
71
 
        Natomas
53
74
 
        North Highlands
53
74
        Placerville
51
74
26 
        Rio Vista
53
64
15 
        Roseville-Rocklin
51
71
20 
        Sacramento
53
74
20 
        Sloughhouse
53
74
        Vacaville
53
64
19 
        Woodland
53
64
34 
San Diego Area
        San Diego Coast
Unhealthy for Sensitive Groups
aqi not available
49 
        San Diego Foothills
Moderate
aqi not available
49 
        San Diego Mesa and Inland Valley
Unhealthy for Sensitive Groups
aqi not available
57 
San Francisco Area
        Concord
42
Moderate
35 
        Fairfield
42
Moderate
58 
        Fremont
29
Good
34 
        Livermore
42
Moderate
18 
        Napa
78
Moderate
53 
        Oakland
68
Moderate
78 
        Redwood City
29
Good
34 
        San Francisco
68
Moderate
38 
        San Jose
33
Moderate
42 
        San Rafael
78
Moderate
26 
        Santa Rosa
78
Moderate
18 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
70
Moderate
74 
        Fresno
72
Moderate
13 
        Hanford
78
Moderate
68 
        Madera
50
Good
15 
        Merced
62
Moderate
42 
        Modesto
59
Moderate
28 
        Stockton
42
Good
 
        Visalia
57
Moderate
70 
San Luis Obispo County
        Atascadero
46
48
36 
        Carrizo Plains
55
61
38 
        Morro Bay
38
39
41 
        Nipomo
42
40
86 
        Paso Robles
39
40
36 
        Red Hills
53
56
42 
        San Luis Obispo
38
40
40 
Santa Barbara County
        Carpinteria
Moderate
aqi not available
23 
        Gaviota Coast
Moderate
aqi not available
42 
        Goleta
Moderate
aqi not available
27 
        Lompoc
Moderate
aqi not available
57 
        Paradise Road
Moderate
aqi not available
33 
        Santa Barbara
Moderate
aqi not available
        Santa Maria
Moderate
aqi not available
46 
        Santa Ynez
Moderate
aqi not available
23 
Santa Rosa Rancheria
aqi not available
aqi not available
41 
Sequoia/Kings Canyon National Parks
46
aqi not available
27 
South Lake Tahoe
aqi not available
aqi not available
10 
Tahoe City area
aqi not available
aqi not available
Truckee
aqi not available
aqi not available
59 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
Ventura County Area
        Ojai
60
60
18 
        Oxnard
65
65
23 
        Piru
75
75
32 
        Simi Valley
75
75
35 
        Thousand Oaks
75
75
34 
Western Nevada County
45
45
43 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
40
aqi not available
152 
Yuba City/Marysville
Moderate
aqi not available
23 
Yucca Vly
51
aqi not available
 
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.