California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170124_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.
 - 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.
 - 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 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 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
Jan 24
Wed
Jan 25
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
68 
Bishop Paiute Tribe
aqi not available
aqi not available
68 
Chester
aqi not available
aqi not available
 
Chico
Good
aqi not available
31 
Death Valley National Park
37 
aqi not available
40 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
Greeley Hill
aqi not available
aqi not available
20 
Gridley
Good
aqi not available
 
Imperial Valley
42 
63 
40 
Joshua Tree National Park
aqi not available
aqi not available
 
La Grange
aqi not available
aqi not available
40 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
34 
aqi not available
35 
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
26 
Los Angeles Area
        Antelope Vly
20 
aqi not available
35 
        Anza Vly
28 
aqi not available
35 
        Banning
28 
aqi not available
 
        Barstow
28 
aqi not available
26 
        Big Bear Lake
28 
aqi not available
 
        C San Bernardino M
28 
aqi not available
40 
        C San Bernardino-1
50 
aqi not available
34 
        C San Bernardino-2
46 
aqi not available
34 
        Capistrano Vly
28 
aqi not available
19 
        Central Coastal
29 
aqi not available
19 
        Central LA CO
20 
aqi not available
70 
        Central Orange-1
20 
aqi not available
59 
        Central Orange-2
25 
aqi not available
59 
        Coachella Vly
57 
aqi not available
23 
        E San Bernardino
25 
aqi not available
27 
        E San Fernando Vly
20 
aqi not available
70 
        E San Gabriel V-1
25 
aqi not available
31 
        E San Gabriel V-2
20 
aqi not available
31 
        East Riverside CO
28 
aqi not available
42 
        Hemet/San Jacinto
28 
aqi not available
35 
        Hesperia
20 
aqi not available
26 
        Lake Elsinore
37 
aqi not available
19 
        Metro Riverside CO
57 
aqi not available
48 
        N Coastal Orange
29 
aqi not available
61 
        NW Coastal LA
20 
aqi not available
61 
        NW San Bernardino
25 
aqi not available
34 
        Norco/Corona
57 
aqi not available
59 
        North Orange CO
21 
aqi not available
59 
        Perris Vly
38 
aqi not available
        Phelan
28 
aqi not available
35 
        Pomona Walnut Vly
20 
aqi not available
        S Central LA CO
20 
aqi not available
        S San Gabriel Vly
20 
aqi not available
 
        SW Coastal LA
29 
aqi not available
61 
        SW San Bernardino
20 
aqi not available
34 
        Saddleback Vly
28 
aqi not available
59 
        San Gabriel Mts
21 
aqi not available
30 
        Santa Clarita Vly
28 
aqi not available
 
        South Coastal LA
21 
aqi not available
61 
        Southeast LA CO
20 
aqi not available
59 
        Temecula Vly
29 
aqi not available
35 
        Trona
28 
aqi not available
30 
        Twentynine Palms
37 
aqi not available
26 
        Victorville
28 
aqi not available
31 
        W San Bernardino M
21 
aqi not available
40 
        W San Fernando Vly
20 
aqi not available
70 
        W San Gabriel Vly
20 
aqi not available
44 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
33 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
aqi not available
14 
        Davenport
Good
aqi not available
 
        Hollister
Good
aqi not available
25 
        King City
Good
aqi not available
18 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
aqi not available
 
        Pinnacles National Monument
Good
aqi not available
        Salinas
Good
aqi not available
26 
        San Lorenzo Valley
Moderate
aqi not available
 
        Santa Cruz
Good
aqi not available
20 
        Scotts Valley
Good
aqi not available
 
        Watsonville
Good
aqi not available
 
Oroville
Good
aqi not available
 
Owens Lake
aqi not available
aqi not available
26 
Paradise
Good
aqi not available
38 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
43 
Red Bluff
aqi not available
aqi not available
 
Redding
50 
aqi not available
44 
Sacramento Area
        Arden Arcade-Del Paso Manor
66 
93 
24 
        Auburn
50 
63 
31 
        Colfax
50 
63 
24 
        Cool
aqi not available
aqi not available
 
        Davis
57 
63 
28 
        Elk Grove
66 
93 
27 
        Folsom
66 
93 
30 
        Lincoln
50 
63 
25 
        Natomas
66 
93 
24 
        North Highlands
66 
93 
        Placerville
aqi not available
aqi not available
41 
        Rio Vista
57 
63 
34 
        Roseville-Rocklin
50 
63 
31 
        Sacramento
66 
93 
24 
        Sloughhouse
66 
93 
24 
        Vacaville
57 
63 
55 
        Woodland
57 
63 
23 
San Diego Area
        San Diego Coast
Good
aqi not available
41 
        San Diego Foothills
Good
aqi not available
        San Diego Mesa and Inland Valley
Good
aqi not available
30 
San Francisco Area
        Concord
53 
Moderate
30 
        Fairfield
53 
Moderate
14 
        Fremont
55 
Moderate
32 
        Livermore
53 
Moderate
15 
        Napa
63 
Moderate
28 
        Oakland
61 
Moderate
34 
        Redwood City
55 
Moderate
10 
        San Francisco
61 
Moderate
26 
        San Jose
61 
Moderate
25 
        San Rafael
63 
Moderate
24 
        Santa Rosa
63 
Moderate
22 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
41 
Good
54 
        Fresno
41 
Good
12 
        Hanford
36 
Good
52 
        Madera
37 
Good
        Merced
38 
Good
21 
        Modesto
37 
Good
17 
        Stockton
39 
Good
26 
        Visalia
37 
Good
33 
San Luis Obispo County
        Atascadero
34 
30 
10 
        Carrizo Plains
39 
37 
18 
        Morro Bay
38 
32 
28 
        Nipomo
36 
34 
24 
        Paso Robles
34 
30 
10 
        Red Hills
38 
37 
31 
        San Luis Obispo
36 
35 
24 
Santa Barbara County
        Carpinteria
Good
aqi not available
18 
        Gaviota Coast
Good
aqi not available
38 
        Goleta
Good
aqi not available
19 
        Lompoc
Good
aqi not available
38 
        Paradise Road
Good
aqi not available
13 
        Santa Barbara
Good
aqi not available
28 
        Santa Maria
Good
aqi not available
18 
        Santa Ynez
Good
aqi not available
19 
Santa Rosa Rancheria
aqi not available
aqi not available
15 
Sequoia/Kings Canyon National Parks
36 
aqi not available
31 
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
 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
 
Ventura County Area
        Ojai
40 
40 
25 
        Oxnard
40 
40 
30 
        Piru
40 
40 
14 
        Simi Valley
40 
40 
40 
        Thousand Oaks
40 
40 
13 
Western Nevada County
42 
42 
35 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
37 
aqi not available
21 
Yuba City/Marysville
Moderate
Moderate
51 
Yucca Vly
20 
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.