California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170525_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
Thu
May 25
Fri
May 26
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
18 
Bishop Paiute Tribe
aqi not available
aqi not available
18 
Chester
aqi not available
aqi not available
 
Chico
Moderate
aqi not available
52 
Death Valley National Park
49 
aqi not available
58 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
31 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
33 
Imperial Valley
100 
53 
67 
Joshua Tree National Park
aqi not available
aqi not available
97 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
45 
aqi not available
 
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
13 
Los Angeles Area
        Antelope Vly
67 
aqi not available
67 
        Anza Vly
46 
aqi not available
40 
        Banning
67 
aqi not available
54 
        Barstow
50 
aqi not available
31 
        Big Bear Lake
132 
aqi not available
 
        C San Bernardino M
132 
aqi not available
77 
        C San Bernardino-1
72 
aqi not available
57 
        C San Bernardino-2
100 
aqi not available
57 
        Capistrano Vly
46 
aqi not available
42 
        Central Coastal
46 
aqi not available
42 
        Central LA CO
50 
aqi not available
64 
        Central Orange-1
46 
aqi not available
37 
        Central Orange-2
46 
aqi not available
42 
        Coachella Vly
100 
aqi not available
67 
        E San Bernardino
100 
aqi not available
27 
        E San Fernando Vly
46 
aqi not available
64 
        E San Gabriel V-1
67 
aqi not available
49 
        E San Gabriel V-2
67 
aqi not available
49 
        East Riverside CO
50 
aqi not available
100 
        Hemet/San Jacinto
67 
aqi not available
40 
        Hesperia
67 
aqi not available
42 
        Lake Elsinore
100 
aqi not available
56 
        Metro Riverside CO
132 
aqi not available
45 
        N Coastal Orange
46 
aqi not available
42 
        NW Coastal LA
46 
aqi not available
36 
        NW San Bernardino
100 
aqi not available
57 
        Norco/Corona
67 
aqi not available
45 
        North Orange CO
50 
aqi not available
37 
        Perris Vly
100 
aqi not available
34 
        Phelan
100 
aqi not available
43 
        Pomona Walnut Vly
67 
aqi not available
28 
        S Central LA CO
29 
aqi not available
33 
        S San Gabriel Vly
46 
aqi not available
 
        SW Coastal LA
37 
aqi not available
36 
        SW San Bernardino
67 
aqi not available
57 
        Saddleback Vly
46 
aqi not available
42 
        San Gabriel Mts
67 
aqi not available
57 
        Santa Clarita Vly
100 
aqi not available
57 
        South Coastal LA
37 
aqi not available
31 
        Southeast LA CO
53 
aqi not available
37 
        Temecula Vly
100 
aqi not available
40 
        Trona
50 
aqi not available
74 
        Twentynine Palms
67 
aqi not available
31 
        Victorville
50 
aqi not available
33 
        W San Bernardino M
100 
aqi not available
77 
        W San Fernando Vly
67 
aqi not available
64 
        W San Gabriel Vly
67 
aqi not available
49 
Mammoth Lakes
aqi not available
aqi not available
19 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
24 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
 
        Davenport
Good
Good
 
        Hollister
Good
Good
 
        King City
Good
Good
 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Moderate
Moderate
23 
        Salinas
Good
Good
23 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
31 
Paradise
Moderate
aqi not available
48 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
36 
Red Bluff
aqi not available
aqi not available
 
Redding
aqi not available
aqi not available
52 
Sacramento Area
        Arden Arcade-Del Paso Manor
51 
49 
37 
        Auburn
54 
54 
31 
        Colfax
54 
54 
39 
        Cool
54 
54 
36 
        Davis
49 
48 
28 
        Elk Grove
51 
49 
29 
        Folsom
51 
49 
27 
        Lincoln
54 
54 
32 
        Natomas
51 
49 
26 
        North Highlands
51 
49 
33 
        Placerville
54 
54 
36 
        Rio Vista
49 
48 
26 
        Roseville-Rocklin
54 
54 
28 
        Sacramento
51 
49 
37 
        Sloughhouse
51 
49 
26 
        Vacaville
49 
48 
32 
        Woodland
49 
48 
30 
San Diego Area
        San Diego Coast
Good
aqi not available
20 
        San Diego Foothills
Moderate
aqi not available
 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
San Francisco Area
        Concord
35 
Good
35 
        Fairfield
35 
Good
30 
        Fremont
31 
Good
32 
        Livermore
35 
Good
27 
        Napa
33 
Good
31 
        Oakland
32 
Good
31 
        Redwood City
31 
Good
32 
        San Francisco
32 
Good
32 
        San Jose
35 
Good
34 
        San Rafael
33 
Good
29 
        Santa Rosa
33 
Good
 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
112 
Moderate
32 
        Fresno
108 
Good
31 
        Hanford
93 
Good
31 
        Madera
74 
Good
31 
        Merced
67 
Good
31 
        Modesto
61 
Good
25 
        Stockton
50 
Good
23 
        Visalia
97 
Good
45 
San Luis Obispo County
        Atascadero
37 
37 
32 
        Carrizo Plains
48 
46 
27 
        Morro Bay
30 
30 
32 
        Nipomo
32 
33 
32 
        Paso Robles
42 
42 
34 
        Red Hills
48 
46 
31 
        San Luis Obispo
32 
32 
31 
Santa Barbara County
        Carpinteria
Good
aqi not available
 
        Gaviota Coast
Good
aqi not available
 
        Goleta
Good
aqi not available
13 
        Lompoc
Good
aqi not available
16 
        Paradise Road
Good
aqi not available
 
        Santa Barbara
Good
aqi not available
31 
        Santa Maria
Good
aqi not available
33 
        Santa Ynez
Good
aqi not available
 
Santa Rosa Rancheria
aqi not available
aqi not available
24 
Sequoia/Kings Canyon National Parks
80 
aqi not available
65 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
29 
Truckee
aqi not available
aqi not available
 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
34 
Ventura County Area
        Ojai
50 
50 
33 
        Oxnard
40 
50 
17 
        Piru
50 
50 
33 
        Simi Valley
50 
50 
45 
        Thousand Oaks
50 
50 
35 
Western Nevada County
aqi not available
aqi not available
115 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
58 
aqi not available
74 
Yuba City/Marysville
Good
aqi not available
30 
Yucca Vly
67 
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.