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_20180526_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
Sat
May 26
Sun
May 27
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
43 
Bishop Paiute Tribe
aqi not available
aqi not available
32 
Chester
aqi not available
aqi not available
25 
Chico
Good
Good
32 
Death Valley National Park
38
36
45 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
19 
Great Basin Air District
aqi not available
aqi not available
43 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
25 
Imperial Valley
93
58
107 
Joshua Tree National Park
aqi not available
aqi not available
44 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
31
32
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
13 
Los Angeles Area
        Antelope Vly
46
37
43 
        Anza Vly
46
57
38 
        Banning
53
67
42 
        Barstow
50
46
44 
        Big Bear Lake
46
67
 
        C San Bernardino M
67
100
38 
        C San Bernardino-1
50
67
54 
        C San Bernardino-2
46
67
54 
        Capistrano Vly
37
57
35 
        Central Coastal
37
46
35 
        Central LA CO
38
46
54 
        Central Orange-1
37
46
37 
        Central Orange-2
37
53
37 
        Coachella Vly
67
67
80 
        E San Bernardino
53
100
41 
        E San Fernando Vly
37
46
54 
        E San Gabriel V-1
50
67
42 
        E San Gabriel V-2
50
100
42 
        East Riverside CO
50
38
 
        Hemet/San Jacinto
46
67
42 
        Hesperia
46
46
40 
        Lake Elsinore
67
67
38 
        Metro Riverside CO
67
100
41 
        N Coastal Orange
37
38
10 
        NW Coastal LA
37
46
36 
        NW San Bernardino
46
67
54 
        Norco/Corona
50
70
41 
        North Orange CO
37
61
39 
        Perris Vly
67
67
42 
        Phelan
46
46
44 
        Pomona Walnut Vly
37
59
32 
        S Central LA CO
28
29
37 
        S San Gabriel Vly
46
67
 
        SW Coastal LA
37
37
36 
        SW San Bernardino
46
67
54 
        Saddleback Vly
37
50
37 
        San Gabriel Mts
46
57
42 
        Santa Clarita Vly
37
46
40 
        South Coastal LA
37
37
35 
        Southeast LA CO
37
50
37 
        Temecula Vly
42
61
38 
        Trona
50
37
43 
        Twentynine Palms
50
67
44 
        Victorville
50
38
42 
        W San Bernardino M
46
67
54 
        W San Fernando Vly
37
46
54 
        W San Gabriel Vly
46
67
42 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
21 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
29 
        Davenport
Good
Good
 
        Hollister
Good
Good
30 
        King City
Good
Good
34 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
29 
        Salinas
Good
Good
34 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
31 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
13 
Paradise
Good
Good
36 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
14 
Red Bluff
aqi not available
aqi not available
34 
Redding
51
51
34 
Sacramento Area
        Arden Arcade-Del Paso Manor
51
74
33 
        Auburn
50
71
38 
        Colfax
50
71
31 
        Cool
50
74
37 
        Davis
49
61
34 
        Elk Grove
51
74
33 
        Folsom
51
74
34 
        Lincoln
50
71
 
        Natomas
51
74
 
        North Highlands
51
74
33 
        Placerville
50
74
37 
        Rio Vista
49
61
        Roseville-Rocklin
50
71
31 
        Sacramento
51
74
34 
        Sloughhouse
51
74
33 
        Vacaville
49
61
28 
        Woodland
49
61
33 
San Diego Area
        San Diego Coast
Good
Good
31 
        San Diego Foothills
Good
Moderate
37 
        San Diego Mesa and Inland Valley
Good
Good
31 
San Francisco Area
        Concord
36
42
 
        Fairfield
36
42
 
        Fremont
33
35
 
        Livermore
36
42
 
        Napa
35
40
 
        Oakland
31
39
 
        Redwood City
33
35
 
        San Francisco
31
39
 
        San Jose
37
44
 
        San Rafael
35
40
 
        Santa Rosa
35
40
 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
45
46
42 
        Fresno
46
44
44 
        Hanford
37
46
42 
        Madera
41
42
41 
        Merced
33
36
42 
        Modesto
31
42
33 
        Stockton
29
37
28 
        Visalia
35
8
44 
San Luis Obispo County
        Atascadero
33
34
30 
        Carrizo Plains
36
38
31 
        Morro Bay
33
34
33 
        Nipomo
62
48
130 
        Paso Robles
35
36
34 
        Red Hills
36
38
32 
        San Luis Obispo
33
35
32 
Santa Barbara County
        Carpinteria
Good
Good
35 
        Gaviota Coast
Good
Good
40 
        Goleta
Good
Good
31 
        Lompoc
Good
Good
35 
        Paradise Road
Good
Good
31 
        Santa Barbara
Good
Good
34 
        Santa Maria
Good
Good
55 
        Santa Ynez
Good
Good
31 
Santa Rosa Rancheria
aqi not available
aqi not available
42 
Sequoia/Kings Canyon National Parks
37
39
55 
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
33 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
39 
Ventura County Area
        Ojai
50
45
35 
        Oxnard
40
40
31 
        Piru
45
45
37 
        Simi Valley
45
45
36 
        Thousand Oaks
45
45
33 
Western Nevada County
45
45
30 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
33 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
36
32
14 
Yreka
aqi not available
aqi not available
35 
Yuba City/Marysville
33
35
36 
Yucca Vly
50
46
 
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.