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_20180422_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
Apr 22
Mon
Apr 23
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
29 
Bishop Paiute Tribe
aqi not available
aqi not available
20 
Chester
aqi not available
aqi not available
41 
Chico
Good
aqi not available
32 
Death Valley National Park
43
aqi not available
 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
24 
Great Basin Air District
aqi not available
aqi not available
29 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
54 
Imperial Valley
101
112
49 
Joshua Tree National Park
aqi not available
aqi not available
 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
34
aqi not available
 
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
aqi not available
37 
        Anza Vly
50
aqi not available
48 
        Banning
67
aqi not available
48 
        Barstow
46
aqi not available
41 
        Big Bear Lake
67
aqi not available
 
        C San Bernardino M
100
aqi not available
52 
        C San Bernardino-1
67
aqi not available
59 
        C San Bernardino-2
57
aqi not available
59 
        Capistrano Vly
50
aqi not available
27 
        Central Coastal
46
aqi not available
27 
        Central LA CO
50
aqi not available
77 
        Central Orange-1
67
aqi not available
63 
        Central Orange-2
46
aqi not available
63 
        Coachella Vly
100
aqi not available
44 
        E San Bernardino
67
aqi not available
34 
        E San Fernando Vly
46
aqi not available
71 
        E San Gabriel V-1
55
aqi not available
42 
        E San Gabriel V-2
67
aqi not available
42 
        East Riverside CO
42
aqi not available
 
        Hemet/San Jacinto
67
aqi not available
48 
        Hesperia
67
aqi not available
38 
        Lake Elsinore
67
aqi not available
47 
        Metro Riverside CO
67
aqi not available
68 
        N Coastal Orange
42
aqi not available
55 
        NW Coastal LA
46
aqi not available
55 
        NW San Bernardino
67
aqi not available
59 
        Norco/Corona
67
aqi not available
63 
        North Orange CO
67
aqi not available
63 
        Perris Vly
67
aqi not available
48 
        Phelan
67
aqi not available
51 
        Pomona Walnut Vly
67
aqi not available
10 
        S Central LA CO
46
aqi not available
14 
        S San Gabriel Vly
46
aqi not available
 
        SW Coastal LA
42
aqi not available
55 
        SW San Bernardino
59
aqi not available
59 
        Saddleback Vly
67
aqi not available
63 
        San Gabriel Mts
67
aqi not available
42 
        Santa Clarita Vly
67
aqi not available
23 
        South Coastal LA
67
aqi not available
55 
        Southeast LA CO
67
aqi not available
63 
        Temecula Vly
55
aqi not available
48 
        Trona
42
aqi not available
34 
        Twentynine Palms
46
aqi not available
41 
        Victorville
42
aqi not available
33 
        W San Bernardino M
50
aqi not available
59 
        W San Fernando Vly
67
aqi not available
71 
        W San Gabriel Vly
46
aqi not available
77 
Mammoth Lakes
aqi not available
aqi not available
12 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
37 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
32 
        Davenport
Good
aqi not available
 
        Hollister
Good
Good
36 
        King City
Good
Good
52 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
 
        Salinas
Good
Good
52 
        San Lorenzo Valley
Moderate
Moderate
 
        Santa Cruz
Good
Good
27 
        Scotts Valley
Good
Good
 
        Watsonville
Good
aqi not available
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
25 
Paradise
Good
aqi not available
45 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
64 
Quincy
aqi not available
aqi not available
20 
Red Bluff
aqi not available
aqi not available
 
Redding
38
42
 
Sacramento Area
        Arden Arcade-Del Paso Manor
50
42
73 
        Auburn
33
29
31 
        Colfax
33
29
47 
        Cool
aqi not available
aqi not available
19 
        Davis
50
42
27 
        Elk Grove
50
42
31 
        Folsom
50
42
43 
        Lincoln
33
29
 
        Natomas
50
42
 
        North Highlands
50
42
23 
        Placerville
aqi not available
aqi not available
31 
        Rio Vista
50
42
 
        Roseville-Rocklin
33
29
31 
        Sacramento
50
42
30 
        Sloughhouse
50
42
40 
        Vacaville
50
42
30 
        Woodland
50
42
40 
San Diego Area
        San Diego Coast
Good
Good
        San Diego Foothills
Moderate
Moderate
54 
        San Diego Mesa and Inland Valley
Moderate
Moderate
69 
San Francisco Area
        Concord
55
50
46 
        Fairfield
55
50
61 
        Fremont
46
44
52 
        Livermore
55
50
35 
        Napa
53
50
49 
        Oakland
57
57
74 
        Redwood City
46
44
52 
        San Francisco
57
57
32 
        San Jose
54
50
53 
        San Rafael
53
50
46 
        Santa Rosa
53
50
26 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
87
Moderate
50 
        Fresno
67
Moderate
35 
        Hanford
71
Moderate
18 
        Madera
64
Moderate
        Merced
61
Moderate
46 
        Modesto
58
Moderate
64 
        Stockton
57
Moderate
56 
        Visalia
74
Moderate
47 
San Luis Obispo County
        Atascadero
40
38
31 
        Carrizo Plains
46
44
28 
        Morro Bay
40
38
22 
        Nipomo
41
38
32 
        Paso Robles
44
38
31 
        Red Hills
49
41
47 
        San Luis Obispo
41
38
39 
Santa Barbara County
        Carpinteria
Good
Good
23 
        Gaviota Coast
Good
Good
54 
        Goleta
Good
Good
52 
        Lompoc
Good
Good
35 
        Paradise Road
Good
Good
29 
        Santa Barbara
Good
Good
45 
        Santa Maria
Good
Good
43 
        Santa Ynez
Good
Good
15 
Santa Rosa Rancheria
aqi not available
aqi not available
37 
Sequoia/Kings Canyon National Parks
44
aqi not available
37 
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
31 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
12 
Ventura County Area
        Ojai
65
55
55 
        Oxnard
55
50
54 
        Piru
65
55
30 
        Simi Valley
65
55
47 
        Thousand Oaks
60
55
46 
Western Nevada County
48
48
38 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
32 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
41
aqi not available
56 
Yreka
aqi not available
aqi not available
26 
Yuba City/Marysville
Good
Good
45 
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.