California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170816_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: 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
Wed
Aug 16
Thu
Aug 17
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
Chester
aqi not available
aqi not available
55 
Chico
Moderate
Moderate
59 
Death Valley National Park
50 
aqi not available
41 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
43 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
59 
Imperial Valley
aqi not available
aqi not available
56 
Joshua Tree National Park
aqi not available
aqi not available
47 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
42 
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
33 
Los Angeles Area
        Antelope Vly
46 
aqi not available
35 
        Anza Vly
46 
aqi not available
45 
        Banning
67 
aqi not available
46 
        Barstow
46 
aqi not available
25 
        Big Bear Lake
67 
aqi not available
 
        C San Bernardino M
132 
aqi not available
44 
        C San Bernardino-1
67 
aqi not available
71 
        C San Bernardino-2
100 
aqi not available
71 
        Capistrano Vly
38 
aqi not available
27 
        Central Coastal
37 
aqi not available
27 
        Central LA CO
61 
aqi not available
59 
        Central Orange-1
38 
aqi not available
57 
        Central Orange-2
33 
aqi not available
57 
        Coachella Vly
67 
aqi not available
44 
        E San Bernardino
100 
aqi not available
21 
        E San Fernando Vly
42 
aqi not available
54 
        E San Gabriel V-1
100 
aqi not available
30 
        E San Gabriel V-2
100 
aqi not available
30 
        East Riverside CO
50 
aqi not available
 
        Hemet/San Jacinto
57 
aqi not available
45 
        Hesperia
50 
aqi not available
32 
        Lake Elsinore
67 
aqi not available
23 
        Metro Riverside CO
72 
aqi not available
60 
        N Coastal Orange
33 
aqi not available
59 
        NW Coastal LA
37 
aqi not available
59 
        NW San Bernardino
80 
aqi not available
71 
        Norco/Corona
61 
aqi not available
60 
        North Orange CO
46 
aqi not available
57 
        Perris Vly
67 
aqi not available
45 
        Phelan
67 
aqi not available
44 
        Pomona Walnut Vly
67 
aqi not available
17 
        S Central LA CO
37 
aqi not available
27 
        S San Gabriel Vly
37 
aqi not available
 
        SW Coastal LA
37 
aqi not available
59 
        SW San Bernardino
67 
aqi not available
71 
        Saddleback Vly
37 
aqi not available
57 
        San Gabriel Mts
66 
aqi not available
48 
        Santa Clarita Vly
74 
aqi not available
48 
        South Coastal LA
28 
aqi not available
59 
        Southeast LA CO
46 
aqi not available
57 
        Temecula Vly
46 
aqi not available
45 
        Trona
50 
aqi not available
34 
        Twentynine Palms
67 
aqi not available
25 
        Victorville
50 
aqi not available
28 
        W San Bernardino M
67 
aqi not available
71 
        W San Fernando Vly
74 
aqi not available
54 
        W San Gabriel Vly
46 
aqi not available
19 
Mammoth Lakes
aqi not available
aqi not available
21 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
68 
Mono Lake
aqi not available
aqi not available
18 
Monterey Bay Area
        Carmel Valley
Good
aqi not available
19 
        Davenport
Good
aqi not available
 
        Hollister
Good
aqi not available
20 
        King City
Moderate
aqi not available
39 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
aqi not available
 
        Pinnacles National Monument
Good
aqi not available
19 
        Salinas
Good
aqi not available
39 
        San Lorenzo Valley
Good
aqi not available
 
        Santa Cruz
Good
aqi not available
36 
        Scotts Valley
Good
aqi not available
 
        Watsonville
Good
aqi not available
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
43 
Paradise
Good
Good
24 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
40 
Quincy
aqi not available
aqi not available
 
Red Bluff
aqi not available
aqi not available
 
Redding
68 
aqi not available
92 
Sacramento Area
        Arden Arcade-Del Paso Manor
67 
100 
63 
        Auburn
80 
100 
54 
        Colfax
80 
100 
47 
        Cool
80 
100 
20 
        Davis
50 
61 
56 
        Elk Grove
67 
100 
 
        Folsom
67 
100 
58 
        Lincoln
80 
100 
47 
        Natomas
67 
100 
 
        North Highlands
67 
100 
18 
        Placerville
80 
100 
27 
        Rio Vista
50 
61 
59 
        Roseville-Rocklin
80 
100 
20 
        Sacramento
67 
100 
48 
        Sloughhouse
67 
100 
57 
        Vacaville
50 
61 
33 
        Woodland
50 
61 
49 
San Diego Area
        San Diego Coast
Good
aqi not available
49 
        San Diego Foothills
Moderate
aqi not available
31 
        San Diego Mesa and Inland Valley
Good
aqi not available
20 
San Francisco Area
        Concord
50 
Moderate
56 
        Fairfield
50 
Moderate
23 
        Fremont
42 
Good
34 
        Livermore
50 
Moderate
46 
        Napa
53 
Moderate
58 
        Oakland
55 
Moderate
54 
        Redwood City
42 
Good
34 
        San Francisco
55 
Moderate
37 
        San Jose
46 
Moderate
34 
        San Rafael
53 
Moderate
46 
        Santa Rosa
53 
Moderate
40 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
80 
Moderate
46 
        Fresno
71 
Moderate
14 
        Hanford
58 
Moderate
52 
        Madera
50 
Good
14 
        Merced
46 
Good
62 
        Modesto
47 
Good
44 
        Stockton
41 
Good
50 
        Visalia
67 
Moderate
54 
San Luis Obispo County
        Atascadero
39 
41 
18 
        Carrizo Plains
42 
38 
17 
        Morro Bay
33 
29 
19 
        Nipomo
44 
42 
45 
        Paso Robles
45 
42 
19 
        Red Hills
39 
45 
18 
        San Luis Obispo
42 
41 
30 
Santa Barbara County
        Carpinteria
Good
aqi not available
12 
        Gaviota Coast
Good
aqi not available
23 
        Goleta
Good
aqi not available
24 
        Lompoc
Good
aqi not available
40 
        Paradise Road
Good
aqi not available
13 
        Santa Barbara
Good
aqi not available
15 
        Santa Maria
Good
aqi not available
28 
        Santa Ynez
Good
aqi not available
19 
Santa Rosa Rancheria
aqi not available
aqi not available
55 
Sequoia/Kings Canyon National Parks
46 
aqi not available
46 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
25 
Truckee
aqi not available
aqi not available
63 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
42 
Ventura County Area
        Ojai
35 
40 
38 
        Oxnard
40 
45 
42 
        Piru
40 
45 
28 
        Simi Valley
45 
45 
54 
        Thousand Oaks
35 
40 
53 
Western Nevada County
80 
aqi not available
37 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
44 
aqi not available
91 
Yuba City/Marysville
Moderate
aqi not available
19 
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.