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_20171217_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
Dec 17
Mon
Dec 18
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
36 
Bishop Paiute Tribe
aqi not available
aqi not available
Chester
aqi not available
aqi not available
41 
Chico
Moderate
aqi not available
30 
Death Valley National Park
aqi not available
aqi not available
36 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
10 
Great Basin Air District
aqi not available
aqi not available
162 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
aqi not available
16 
Imperial Valley
100
55
60 
Joshua Tree National Park
aqi not available
aqi not available
32 
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
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
25 
Los Angeles Area
        Antelope Vly
45
aqi not available
67 
        Anza Vly
51
aqi not available
66 
        Banning
38
aqi not available
32 
        Barstow
38
aqi not available
33 
        Big Bear Lake
38
aqi not available
 
        C San Bernardino M
46
aqi not available
38 
        C San Bernardino-1
63
aqi not available
68 
        C San Bernardino-2
57
aqi not available
68 
        Capistrano Vly
46
aqi not available
35 
        Central Coastal
50
aqi not available
35 
        Central LA CO
53
aqi not available
110 
        Central Orange-1
44
aqi not available
82 
        Central Orange-2
43
aqi not available
82 
        Coachella Vly
42
aqi not available
57 
        E San Bernardino
34
aqi not available
23 
        E San Fernando Vly
42
aqi not available
43 
        E San Gabriel V-1
48
aqi not available
35 
        E San Gabriel V-2
46
aqi not available
35 
        East Riverside CO
50
aqi not available
 
        Hemet/San Jacinto
42
aqi not available
63 
        Hesperia
42
aqi not available
39 
        Lake Elsinore
60
aqi not available
66 
        Metro Riverside CO
65
aqi not available
75 
        N Coastal Orange
44
aqi not available
110 
        NW Coastal LA
47
aqi not available
110 
        NW San Bernardino
57
aqi not available
68 
        Norco/Corona
63
aqi not available
82 
        North Orange CO
49
aqi not available
82 
        Perris Vly
55
aqi not available
63 
        Phelan
42
aqi not available
31 
        Pomona Walnut Vly
46
aqi not available
        S Central LA CO
42
aqi not available
        S San Gabriel Vly
42
aqi not available
 
        SW Coastal LA
57
aqi not available
110 
        SW San Bernardino
58
aqi not available
68 
        Saddleback Vly
50
aqi not available
82 
        San Gabriel Mts
47
aqi not available
36 
        Santa Clarita Vly
46
aqi not available
36 
        South Coastal LA
57
aqi not available
110 
        Southeast LA CO
57
aqi not available
82 
        Temecula Vly
55
aqi not available
66 
        Trona
46
aqi not available
38 
        Twentynine Palms
38
aqi not available
33 
        Victorville
50
aqi not available
28 
        W San Bernardino M
38
aqi not available
68 
        W San Fernando Vly
42
aqi not available
43 
        W San Gabriel Vly
50
aqi not available
79 
Mammoth Lakes
aqi not available
aqi not available
10 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
62 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
24 
        Davenport
Good
aqi not available
 
        Hollister
Good
Good
21 
        King City
Good
Good
16 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
32 
        Salinas
Good
Good
36 
        San Lorenzo Valley
Moderate
Moderate
 
        Santa Cruz
Good
Good
36 
        Scotts Valley
Good
Good
 
        Watsonville
Good
aqi not available
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
162 
Paradise
Good
aqi not available
42 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
56 
Red Bluff
aqi not available
aqi not available
35 
Redding
55
aqi not available
39 
Sacramento Area
        Arden Arcade-Del Paso Manor
59
93
29 
        Auburn
46
53
36 
        Colfax
46
53
36 
        Cool
aqi not available
aqi not available
 
        Davis
50
68
30 
        Elk Grove
59
93
25 
        Folsom
59
93
33 
        Lincoln
46
53
 
        Natomas
59
93
 
        North Highlands
59
93
28 
        Placerville
aqi not available
aqi not available
39 
        Rio Vista
50
68
22 
        Roseville-Rocklin
46
53
28 
        Sacramento
59
93
28 
        Sloughhouse
59
93
29 
        Vacaville
50
68
35 
        Woodland
50
68
31 
San Diego Area
        San Diego Coast
Good
Moderate
72 
        San Diego Foothills
Good
Good
52 
        San Diego Mesa and Inland Valley
Moderate
Moderate
84 
San Francisco Area
        Concord
50
Moderate
 
        Fairfield
50
Moderate
 
        Fremont
42
Moderate
 
        Livermore
50
Moderate
 
        Napa
57
Moderate
 
        Oakland
55
Moderate
 
        Redwood City
42
Moderate
 
        San Francisco
55
Moderate
 
        San Jose
46
Moderate
 
        San Rafael
57
Moderate
 
        Santa Rosa
57
Moderate
 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
57
Moderate
66 
        Fresno
46
Good
145 
        Hanford
57
Moderate
 
        Madera
42
Good
        Merced
33
Good
95 
        Modesto
38
Good
21 
        Stockton
42
Good
24 
        Visalia
59
Moderate
83 
San Luis Obispo County
        Atascadero
95
62
53 
        Carrizo Plains
50
49
20 
        Morro Bay
50
49
31 
        Nipomo
90
58
48 
        Paso Robles
95
62
53 
        Red Hills
50
46
31 
        San Luis Obispo
50
38
34 
Santa Barbara County
        Carpinteria
Unhealthy
aqi not available
97 
        Gaviota Coast
Moderate
aqi not available
59 
        Goleta
Unhealthy
aqi not available
53 
        Lompoc
Moderate
aqi not available
71 
        Paradise Road
Good
aqi not available
30 
        Santa Barbara
Unhealthy
aqi not available
148 
        Santa Maria
Moderate
aqi not available
65 
        Santa Ynez
Good
aqi not available
18 
Santa Rosa Rancheria
aqi not available
aqi not available
75 
Sequoia/Kings Canyon National Parks
aqi not available
aqi not available
21 
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
58 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
15 
Ventura
aqi not available
aqi not available
69 
Ventura County Area
        Ojai
160
150
120 
        Oxnard
70
65
69 
        Piru
40
40
37 
        Simi Valley
50
50
64 
        Thousand Oaks
60
55
37 
Western Nevada County
38
aqi not available
42 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
33 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
aqi not available
aqi not available
82 
Yuba City/Marysville
Good
Unhealthy for Sensitive Groups
36 
Yucca Vly
50
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.