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_20180524_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
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
Thu
May 24
Fri
May 25
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
61 
Bishop Paiute Tribe
aqi not available
aqi not available
19 
Chester
aqi not available
aqi not available
48 
Chico
Good
aqi not available
33 
Death Valley National Park
50
aqi not available
 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
Great Basin Air District
aqi not available
aqi not available
61 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
30 
Imperial Valley
90
91
58 
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
39
aqi not available
31 
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
48 
Los Angeles Area
        Antelope Vly
46
aqi not available
67 
        Anza Vly
46
aqi not available
48 
        Banning
67
aqi not available
65 
        Barstow
46
aqi not available
48 
        Big Bear Lake
67
aqi not available
 
        C San Bernardino M
100
aqi not available
74 
        C San Bernardino-1
50
aqi not available
59 
        C San Bernardino-2
67
aqi not available
59 
        Capistrano Vly
37
aqi not available
34 
        Central Coastal
37
aqi not available
34 
        Central LA CO
38
aqi not available
49 
        Central Orange-1
37
aqi not available
29 
        Central Orange-2
33
aqi not available
29 
        Coachella Vly
100
aqi not available
54 
        E San Bernardino
67
aqi not available
27 
        E San Fernando Vly
55
aqi not available
49 
        E San Gabriel V-1
53
aqi not available
24 
        E San Gabriel V-2
67
aqi not available
24 
        East Riverside CO
46
aqi not available
 
        Hemet/San Jacinto
67
aqi not available
37 
        Hesperia
67
aqi not available
74 
        Lake Elsinore
100
aqi not available
48 
        Metro Riverside CO
67
aqi not available
56 
        N Coastal Orange
29
aqi not available
        NW Coastal LA
37
aqi not available
37 
        NW San Bernardino
55
aqi not available
59 
        Norco/Corona
46
aqi not available
42 
        North Orange CO
37
aqi not available
29 
        Perris Vly
67
aqi not available
37 
        Phelan
67
aqi not available
49 
        Pomona Walnut Vly
46
aqi not available
21 
        S Central LA CO
38
aqi not available
32 
        S San Gabriel Vly
38
aqi not available
 
        SW Coastal LA
38
aqi not available
33 
        SW San Bernardino
46
aqi not available
59 
        Saddleback Vly
46
aqi not available
34 
        San Gabriel Mts
46
aqi not available
45 
        Santa Clarita Vly
67
aqi not available
45 
        South Coastal LA
33
aqi not available
29 
        Southeast LA CO
55
aqi not available
29 
        Temecula Vly
37
aqi not available
48 
        Trona
46
aqi not available
58 
        Twentynine Palms
67
aqi not available
48 
        Victorville
46
aqi not available
54 
        W San Bernardino M
67
aqi not available
74 
        W San Fernando Vly
66
aqi not available
49 
        W San Gabriel Vly
46
aqi not available
32 
Mammoth Lakes
aqi not available
aqi not available
18 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
23 
Mono Lake
aqi not available
aqi not available
16 
Monterey Bay Area
        Carmel Valley
Good
Good
32 
        Davenport
Good
Good
 
        Hollister
Good
Good
31 
        King City
Good
Good
31 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
31
Good
31 
        Salinas
Good
Good
33 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
22 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
48 
Paradise
Good
aqi not available
44 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
34 
Red Bluff
aqi not available
aqi not available
40 
Redding
aqi not available
aqi not available
42 
Sacramento Area
        Arden Arcade-Del Paso Manor
39
36
30 
        Auburn
45
37
37 
        Colfax
45
37
42 
        Cool
42
39
29 
        Davis
38
37
27 
        Elk Grove
39
36
29 
        Folsom
39
36
30 
        Lincoln
45
37
 
        Natomas
39
36
 
        North Highlands
39
36
29 
        Placerville
42
39
31 
        Rio Vista
38
37
19 
        Roseville-Rocklin
45
37
30 
        Sacramento
39
36
30 
        Sloughhouse
39
36
28 
        Vacaville
38
37
31 
        Woodland
38
37
29 
San Diego Area
        San Diego Coast
Good
aqi not available
39 
        San Diego Foothills
Good
aqi not available
37 
        San Diego Mesa and Inland Valley
Good
aqi not available
36 
San Francisco Area
        Concord
50
Good
27 
        Fairfield
50
Good
33 
        Fremont
32
Good
31 
        Livermore
50
Good
31 
        Napa
46
Good
 
        Oakland
46
Good
30 
        Redwood City
32
Good
 
        San Francisco
46
Good
29 
        San Jose
34
Good
30 
        San Rafael
46
Good
29 
        Santa Rosa
46
Good
27 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
61
Moderate
35 
        Fresno
67
Moderate
48 
        Hanford
58
Moderate
40 
        Madera
50
Good
31 
        Merced
43
Good
32 
        Modesto
47
Good
30 
        Stockton
39
Good
29 
        Visalia
64
Moderate
49 
San Luis Obispo County
        Atascadero
31
30
32 
        Carrizo Plains
36
32
31 
        Morro Bay
31
30
31 
        Nipomo
31
52
31 
        Paso Robles
33
32
37 
        Red Hills
35
34
32 
        San Luis Obispo
31
30
33 
Santa Barbara County
        Carpinteria
Good
aqi not available
37 
        Gaviota Coast
Good
aqi not available
34 
        Goleta
Good
aqi not available
27 
        Lompoc
Good
aqi not available
32 
        Paradise Road
Good
aqi not available
32 
        Santa Barbara
Good
aqi not available
36 
        Santa Maria
Good
aqi not available
30 
        Santa Ynez
Good
aqi not available
31 
Santa Rosa Rancheria
aqi not available
aqi not available
56 
Sequoia/Kings Canyon National Parks
46
aqi not available
71 
South Lake Tahoe
aqi not available
aqi not available
12 
Tahoe City area
aqi not available
aqi not available
10 
Truckee
aqi not available
aqi not available
40 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
28 
Ventura County Area
        Ojai
50
50
43 
        Oxnard
40
40
31 
        Piru
45
45
31 
        Simi Valley
45
45
36 
        Thousand Oaks
45
45
35 
Western Nevada County
aqi not available
aqi not available
14 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
42
aqi not available
48 
Yreka
aqi not available
aqi not available
19 
Yuba City/Marysville
40
aqi not available
28 
Yucca Vly
46
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.