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_20180522_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
Tue
May 22
Wed
May 23
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
50 
Bishop Paiute Tribe
aqi not available
aqi not available
19 
Chester
aqi not available
aqi not available
24 
Chico
Moderate
Moderate
45 
Death Valley National Park
43
46
67 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
15 
Great Basin Air District
aqi not available
aqi not available
50 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
45 
Imperial Valley
64
77
77 
Joshua Tree National Park
aqi not available
aqi not available
74 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
40
42
38 
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
26 
Los Angeles Area
        Antelope Vly
46
46
64 
        Anza Vly
46
46
45 
        Banning
67
67
70 
        Barstow
46
46
80 
        Big Bear Lake
67
46
 
        C San Bernardino M
67
67
51 
        C San Bernardino-1
53
50
66 
        C San Bernardino-2
46
46
66 
        Capistrano Vly
38
37
39 
        Central Coastal
33
37
39 
        Central LA CO
38
29
56 
        Central Orange-1
28
28
39 
        Central Orange-2
38
28
39 
        Coachella Vly
67
68
84 
        E San Bernardino
46
55
42 
        E San Fernando Vly
33
28
56 
        E San Gabriel V-1
42
42
31 
        E San Gabriel V-2
37
46
31 
        East Riverside CO
46
46
 
        Hemet/San Jacinto
46
46
47 
        Hesperia
46
46
48 
        Lake Elsinore
67
67
45 
        Metro Riverside CO
42
67
58 
        N Coastal Orange
37
28
24 
        NW Coastal LA
37
37
38 
        NW San Bernardino
42
42
66 
        Norco/Corona
37
46
46 
        North Orange CO
29
37
39 
        Perris Vly
46
46
47 
        Phelan
46
46
44 
        Pomona Walnut Vly
33
29
30 
        S Central LA CO
38
21
35 
        S San Gabriel Vly
37
28
 
        SW Coastal LA
33
28
24 
        SW San Bernardino
33
37
66 
        Saddleback Vly
37
37
39 
        San Gabriel Mts
37
37
52 
        Santa Clarita Vly
46
46
52 
        South Coastal LA
38
28
33 
        Southeast LA CO
33
38
39 
        Temecula Vly
29
37
45 
        Trona
37
37
74 
        Twentynine Palms
46
46
80 
        Victorville
46
46
51 
        W San Bernardino M
46
46
66 
        W San Fernando Vly
61
37
56 
        W San Gabriel Vly
38
37
52 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
22 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
30 
        Davenport
Good
Good
 
        Hollister
Good
Good
30 
        King City
Good
Good
33 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
33
31 
        Salinas
Good
Good
33 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
30 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
26 
Paradise
Moderate
Moderate
51 
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
48 
Redding
44
aqi not available
48 
Sacramento Area
        Arden Arcade-Del Paso Manor
40
39
53 
        Auburn
42
42
49 
        Colfax
42
42
58 
        Cool
44
43
51 
        Davis
40
37
34 
        Elk Grove
40
39
37 
        Folsom
40
39
44 
        Lincoln
42
42
 
        Natomas
40
39
 
        North Highlands
40
39
40 
        Placerville
44
43
51 
        Rio Vista
40
37
10 
        Roseville-Rocklin
42
42
41 
        Sacramento
40
39
36 
        Sloughhouse
40
39
43 
        Vacaville
40
37
32 
        Woodland
40
37
46 
San Diego Area
        San Diego Coast
Good
Good
39 
        San Diego Foothills
Good
Good
45 
        San Diego Mesa and Inland Valley
Good
Good
38 
San Francisco Area
        Concord
37
42
27 
        Fairfield
37
42
36 
        Fremont
38
29
31 
        Livermore
37
42
31 
        Napa
46
42
 
        Oakland
50
46
30 
        Redwood City
38
29
 
        San Francisco
50
46
30 
        San Jose
39
31
31 
        San Rafael
46
42
33 
        Santa Rosa
46
42
28 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
50
71
54 
        Fresno
47
87
74 
        Hanford
44
74
67 
        Madera
43
67
58 
        Merced
41
50
42 
        Modesto
44
64
45 
        Stockton
40
44
34 
        Visalia
48
80
74 
San Luis Obispo County
        Atascadero
33
36
31 
        Carrizo Plains
37
40
34 
        Morro Bay
34
36
31 
        Nipomo
35
36
31 
        Paso Robles
38
39
33 
        Red Hills
38
40
37 
        San Luis Obispo
36
37
31 
Santa Barbara County
        Carpinteria
Good
Good
39 
        Gaviota Coast
Good
Good
37 
        Goleta
Good
Good
32 
        Lompoc
Good
Good
32 
        Paradise Road
Good
Good
34 
        Santa Barbara
Good
Good
36 
        Santa Maria
Good
Good
29 
        Santa Ynez
Good
Good
33 
Santa Rosa Rancheria
aqi not available
aqi not available
71 
Sequoia/Kings Canyon National Parks
39
45
71 
South Lake Tahoe
aqi not available
aqi not available
Tahoe City area
aqi not available
aqi not available
21 
Truckee
aqi not available
aqi not available
17 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
49 
Ventura County Area
        Ojai
45
45
40 
        Oxnard
35
35
34 
        Piru
45
45
40 
        Simi Valley
45
45
42 
        Thousand Oaks
40
40
38 
Western Nevada County
44
46
44 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
46 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
37
40
42 
Yreka
aqi not available
aqi not available
44 
Yuba City/Marysville
41
41
49 
Yucca Vly
46
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.