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_20190527_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 Air Resources 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
Siskiyou County Air Pollution Control 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
May 27
Tue
May 28
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
24 
Bishop Paiute Tribe
aqi not available
aqi not available
16 
Brawley
66
77
14 
Calexico
66
77
41 
Chester
aqi not available
aqi not available
 
Chico
Good
aqi not available
 
Death Valley National Park
36
aqi not available
45 
El Centro
66
77
30 
Eureka
aqi not available
aqi not available
28 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
13 
Great Basin Air District
aqi not available
aqi not available
24 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
20 
Imperial Valley
66
77
41 
Joshua Tree National Park
aqi not available
aqi not available
43 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
34
aqi not available
24 
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
18 
Los Angeles Area
        Antelope Vly
37
aqi not available
33 
        Anza Vly
39
aqi not available
34 
        Banning
52
aqi not available
37 
        Barstow
39
aqi not available
37 
        Big Bear Lake
46
aqi not available
 
        C San Bernardino M
57
aqi not available
43 
        C San Bernardino-1
41
aqi not available
35 
        C San Bernardino-2
42
aqi not available
35 
        Capistrano Vly
32
aqi not available
32 
        Central Coastal
33
aqi not available
32 
        Central LA CO
33
aqi not available
25 
        Central Orange-1
42
aqi not available
31 
        Central Orange-2
42
aqi not available
31 
        Coachella Vly
48
aqi not available
45 
        E San Bernardino
52
aqi not available
33 
        E San Fernando Vly
50
aqi not available
25 
        E San Gabriel V-1
50
aqi not available
29 
        E San Gabriel V-2
50
aqi not available
29 
        East Riverside CO
49
aqi not available
 
        Hemet/San Jacinto
43
aqi not available
34 
        Hesperia
37
aqi not available
36 
        Lake Elsinore
48
aqi not available
31 
        Metro Riverside CO
50
aqi not available
31 
        N Coastal Orange
42
aqi not available
23 
        NW Coastal LA
30
aqi not available
23 
        NW San Bernardino
57
aqi not available
28 
        Norco/Corona
50
aqi not available
31 
        North Orange CO
42
aqi not available
31 
        Perris Vly
42
aqi not available
34 
        Phelan
44
aqi not available
36 
        Pomona Walnut Vly
31
aqi not available
17 
        S Central LA CO
50
aqi not available
10 
        S San Gabriel Vly
31
aqi not available
 
        SW Coastal LA
50
aqi not available
23 
        SW San Bernardino
37
aqi not available
28 
        Saddleback Vly
32
aqi not available
32 
        San Gabriel Mts
35
aqi not available
29 
        Santa Clarita Vly
50
aqi not available
14 
        South Coastal LA
29
aqi not available
30 
        Southeast LA CO
38
aqi not available
31 
        Temecula Vly
34
aqi not available
34 
        Trona
36
aqi not available
38 
        Twentynine Palms
49
aqi not available
37 
        Victorville
37
aqi not available
38 
        W San Bernardino M
44
aqi not available
43 
        W San Fernando Vly
36
aqi not available
25 
        W San Gabriel Vly
37
aqi not available
23 
Mammoth Lakes
aqi not available
aqi not available
12 
Markleeville
aqi not available
aqi not available
 
Mendocino County
aqi not available
aqi not available
 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
aqi not available
 
        Davenport
Good
aqi not available
 
        Hollister
Good
aqi not available
 
        King City
Good
aqi not available
 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
aqi not available
 
        Pinnacles National Monument
Good
aqi not available
 
        Salinas
Good
aqi not available
25 
        San Lorenzo Valley
Good
aqi not available
 
        Santa Cruz
Good
aqi not available
22 
        Scotts Valley
Good
aqi not available
 
        Watsonville
Good
aqi not available
 
Niland
66
77
33 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
18 
Paradise
Good
aqi not available
 
Point Arena
aqi not available
aqi not available
13 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
 
Red Bluff
aqi not available
aqi not available
31 
Redding
aqi not available
aqi not available
33 
Sacramento Area
        Arden Arcade-Del Paso Manor
44
49
20 
        Auburn
46
50
 
        Colfax
46
50
31 
        Cool
46
50
24 
        Davis
40
43
20 
        Elk Grove
44
49
15 
        Folsom
44
49
25 
        Lincoln
46
50
 
        Natomas
44
49
 
        North Highlands
44
49
16 
        Placerville
46
50
24 
        Rio Vista
40
43
17 
        Roseville-Rocklin
46
50
24 
        Sacramento
44
49
24 
        Sloughhouse
44
49
11 
        Vacaville
40
43
 
        Woodland
40
43
 
San Diego Area
        San Diego Coast
Good
Good
 
        San Diego Foothills
Good
Moderate
 
        San Diego Mesa and Inland Valley
Good
Moderate
 
San Francisco Area
        Concord
42
44
27 
        Fairfield
42
44
22 
        Fremont
38
50
24 
        Livermore
42
44
24 
        Napa
39
43
22 
        Oakland
46
50
35 
        Redwood City
38
50
10 
        San Francisco
46
50
36 
        San Jose
42
45
21 
        San Rafael
39
43
14 
        Santa Rosa
39
43
29 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
50
aqi not available
27 
        Fresno
46
aqi not available
18 
        Hanford
43
aqi not available
 
        Madera
43
aqi not available
 
        Merced
44
aqi not available
12 
        Modesto
41
aqi not available
25 
        Stockton
44
aqi not available
23 
        Visalia
44
aqi not available
26 
San Luis Obispo County
        Atascadero
37
41
        Carrizo Plains
37
41
        Morro Bay
37
38
11 
        Nipomo
52
60
17 
        Paso Robles
37
41
        Red Hills
39
42
28 
        San Luis Obispo
37
39
Santa Barbara County
        Carpinteria
Good
Good
 
        Gaviota Coast
Good
Good
32 
        Goleta
Good
Good
27 
        Lompoc
Good
Good
31 
        Paradise Road
Good
Good
19 
        Santa Barbara
Good
Good
33 
        Santa Maria
Good
Good
10 
        Santa Ynez
Good
Good
22 
Santa Rosa Rancheria
aqi not available
aqi not available
Sequoia/Kings Canyon National Parks
35
aqi not available
22 
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
32 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
 
Ukiah
aqi not available
aqi not available
16 
Ventura County Area
        Ojai
45
50
14 
        Oxnard
45
45
15 
        Piru
45
50
12 
        Simi Valley
45
50
23 
        Thousand Oaks
45
50
19 
Western Nevada County
32
34
27 
Westmorland
66
77
35 
Willits
aqi not available
aqi not available
13 
Willows
aqi not available
aqi not available
 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
34
aqi not available
34 
Yreka
aqi not available
aqi not available
22 
Yuba City/Marysville
Good
aqi not available
20 
Yucca Vly
36
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.