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_20180617_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.
 - 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 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 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
Sun
Jun 17
Mon
Jun 18
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
31 
Chester
aqi not available
aqi not available
26 
Chico
Good
Good
37 
Death Valley National Park
40
39
49 
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
50 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
43 
Imperial Valley
91
64
40 
Joshua Tree National Park
aqi not available
aqi not available
48 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
36
37
34 
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
25 
Los Angeles Area
        Antelope Vly
46
46
40 
        Anza Vly
57
46
42 
        Banning
59
59
39 
        Barstow
46
46
48 
        Big Bear Lake
46
67
 
        C San Bernardino M
55
67
40 
        C San Bernardino-1
89
70
44 
        C San Bernardino-2
72
59
44 
        Capistrano Vly
57
33
37 
        Central Coastal
55
33
37 
        Central LA CO
46
42
59 
        Central Orange-1
46
38
36 
        Central Orange-2
55
38
36 
        Coachella Vly
70
70
44 
        E San Bernardino
72
57
42 
        E San Fernando Vly
53
57
59 
        E San Gabriel V-1
63
53
44 
        E San Gabriel V-2
59
55
44 
        East Riverside CO
50
46
 
        Hemet/San Jacinto
61
53
42 
        Hesperia
50
46
39 
        Lake Elsinore
70
67
36 
        Metro Riverside CO
74
67
40 
        N Coastal Orange
55
38
28 
        NW Coastal LA
46
33
34 
        NW San Bernardino
70
68
38 
        Norco/Corona
70
63
37 
        North Orange CO
59
42
36 
        Perris Vly
72
59
42 
        Phelan
66
67
38 
        Pomona Walnut Vly
63
50
34 
        S Central LA CO
37
42
33 
        S San Gabriel Vly
38
42
 
        SW Coastal LA
46
38
34 
        SW San Bernardino
68
61
38 
        Saddleback Vly
55
29
37 
        San Gabriel Mts
59
46
55 
        Santa Clarita Vly
46
57
55 
        South Coastal LA
46
38
38 
        Southeast LA CO
50
38
36 
        Temecula Vly
67
42
42 
        Trona
46
46
50 
        Twentynine Palms
46
67
48 
        Victorville
50
46
42 
        W San Bernardino M
66
67
40 
        W San Fernando Vly
46
57
59 
        W San Gabriel Vly
53
46
39 
Mammoth Lakes
aqi not available
aqi not available
17 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
33 
Mono Lake
aqi not available
aqi not available
11 
Monterey Bay Area
        Carmel Valley
Good
Good
28 
        Davenport
Good
Good
 
        Hollister
Good
Good
30 
        King City
Good
Good
32 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
45
33 
        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
27 
Paradise
Good
Good
36 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
25 
Quincy
aqi not available
aqi not available
17 
Red Bluff
aqi not available
aqi not available
43 
Redding
61
aqi not available
63 
Sacramento Area
        Arden Arcade-Del Paso Manor
50
71
46 
        Auburn
67
80
36 
        Colfax
67
80
39 
        Cool
67
80
34 
        Davis
44
50
39 
        Elk Grove
50
71
33 
        Folsom
50
71
40 
        Lincoln
67
80
 
        Natomas
50
71
 
        North Highlands
50
71
32 
        Placerville
67
80
34 
        Rio Vista
44
50
23 
        Roseville-Rocklin
67
80
29 
        Sacramento
50
71
29 
        Sloughhouse
50
71
43 
        Vacaville
44
50
33 
        Woodland
44
50
40 
San Diego Area
        San Diego Coast
Good
Good
35 
        San Diego Foothills
Good
Moderate
38 
        San Diego Mesa and Inland Valley
Moderate
Moderate
34 
San Francisco Area
        Concord
46
46
52 
        Fairfield
46
46
37 
        Fremont
37
42
31 
        Livermore
46
46
34 
        Napa
42
42
 
        Oakland
46
50
46 
        Redwood City
37
42
29 
        San Francisco
46
50
31 
        San Jose
41
44
30 
        San Rafael
42
42
29 
        Santa Rosa
42
42
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
45
50
32 
        Fresno
46
49
45 
        Hanford
44
45
33 
        Madera
42
45
30 
        Merced
37
41
29 
        Modesto
42
44
35 
        Stockton
38
41
31 
        Visalia
49
48
35 
San Luis Obispo County
        Atascadero
37
38
31 
        Carrizo Plains
37
38
31 
        Morro Bay
36
37
29 
        Nipomo
36
49
31 
        Paso Robles
37
39
31 
        Red Hills
37
38
31 
        San Luis Obispo
36
37
30 
Santa Barbara County
        Carpinteria
Good
Good
35 
        Gaviota Coast
Good
Good
31 
        Goleta
Good
Good
29 
        Lompoc
Good
Good
37 
        Paradise Road
Good
Good
31 
        Santa Barbara
Good
Good
31 
        Santa Maria
Good
Good
28 
        Santa Ynez
Good
Good
30 
Santa Rosa Rancheria
aqi not available
aqi not available
32 
Sequoia/Kings Canyon National Parks
41
43
60 
South Lake Tahoe
aqi not available
aqi not available
13 
Tahoe City area
aqi not available
aqi not available
Truckee
aqi not available
aqi not available
10 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
32 
Ventura County Area
        Ojai
45
50
35 
        Oxnard
40
45
31 
        Piru
50
55
31 
        Simi Valley
50
55
34 
        Thousand Oaks
45
50
34 
Western Nevada County
60
60
31 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
39 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
34
40
32 
Yreka
aqi not available
aqi not available
37 
Yuba City/Marysville
44
43
 
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.