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_20190319_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
Mar 19
Wed
Mar 20
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
44 
Bishop Paiute Tribe
aqi not available
aqi not available
44 
Brawley
84
66
42 
Calexico
84
66
15 
Chester
aqi not available
aqi not available
Chico
Good
aqi not available
29 
Death Valley National Park
47
aqi not available
44 
El Centro
84
66
36 
Eureka
aqi not available
aqi not available
22 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
26 
Great Basin Air District
aqi not available
aqi not available
92 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
55 
Imperial Valley
84
66
42 
Joshua Tree National Park
aqi not available
aqi not available
45 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
48
aqi not available
43 
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
24 
Los Angeles Area
        Antelope Vly
59
aqi not available
31 
        Anza Vly
42
aqi not available
40 
        Banning
46
aqi not available
38 
        Barstow
50
aqi not available
33 
        Big Bear Lake
47
aqi not available
 
        C San Bernardino M
50
aqi not available
38 
        C San Bernardino-1
57
aqi not available
31 
        C San Bernardino-2
57
aqi not available
31 
        Capistrano Vly
38
aqi not available
19 
        Central Coastal
54
aqi not available
19 
        Central LA CO
65
aqi not available
63 
        Central Orange-1
59
aqi not available
43 
        Central Orange-2
59
aqi not available
43 
        Coachella Vly
47
aqi not available
36 
        E San Bernardino
47
aqi not available
24 
        E San Fernando Vly
57
aqi not available
63 
        E San Gabriel V-1
50
aqi not available
40 
        E San Gabriel V-2
50
aqi not available
40 
        East Riverside CO
46
aqi not available
 
        Hemet/San Jacinto
44
aqi not available
40 
        Hesperia
50
aqi not available
33 
        Lake Elsinore
54
aqi not available
25 
        Metro Riverside CO
61
aqi not available
57 
        N Coastal Orange
54
aqi not available
31 
        NW Coastal LA
63
aqi not available
31 
        NW San Bernardino
52
aqi not available
27 
        Norco/Corona
63
aqi not available
57 
        North Orange CO
59
aqi not available
43 
        Perris Vly
46
aqi not available
40 
        Phelan
46
aqi not available
45 
        Pomona Walnut Vly
63
aqi not available
12 
        S Central LA CO
67
aqi not available
31 
        S San Gabriel Vly
63
aqi not available
 
        SW Coastal LA
59
aqi not available
31 
        SW San Bernardino
74
aqi not available
27 
        Saddleback Vly
50
aqi not available
43 
        San Gabriel Mts
42
aqi not available
40 
        Santa Clarita Vly
57
aqi not available
36 
        South Coastal LA
67
aqi not available
36 
        Southeast LA CO
63
aqi not available
43 
        Temecula Vly
51
aqi not available
40 
        Trona
43
aqi not available
31 
        Twentynine Palms
46
aqi not available
33 
        Victorville
50
aqi not available
27 
        W San Bernardino M
52
aqi not available
38 
        W San Fernando Vly
59
aqi not available
63 
        W San Gabriel Vly
46
aqi not available
59 
Mammoth Lakes
aqi not available
aqi not available
92 
Markleeville
aqi not available
aqi not available
 
Mendocino County
aqi not available
aqi not available
 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
 
        Davenport
Good
aqi not available
 
        Hollister
Good
Good
 
        King City
Good
Good
 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
 
        Salinas
Good
Good
41 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
43 
        Scotts Valley
Good
Good
 
        Watsonville
Good
aqi not available
 
Niland
84
66
25 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
24 
Paradise
Good
aqi not available
44 
Point Arena
aqi not available
aqi not available
26 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
102 
Quincy
aqi not available
aqi not available
41 
Red Bluff
aqi not available
aqi not available
 
Redding
40
aqi not available
66 
Sacramento Area
        Arden Arcade-Del Paso Manor
57
38
        Auburn
50
33
48 
        Colfax
50
33
36 
        Cool
aqi not available
aqi not available
 
        Davis
53
33
18 
        Elk Grove
57
38
53 
        Folsom
57
38
36 
        Lincoln
50
33
28 
        Natomas
57
38
 
        North Highlands
57
38
        Placerville
aqi not available
aqi not available
42 
        Rio Vista
53
33
36 
        Roseville-Rocklin
50
33
29 
        Sacramento
57
38
59 
        Sloughhouse
57
38
30 
        Vacaville
53
33
32 
        Woodland
53
33
39 
San Diego Area
        San Diego Coast
Good
aqi not available
27 
        San Diego Foothills
Good
aqi not available
50 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
62 
San Francisco Area
        Concord
50
Good
38 
        Fairfield
50
Good
43 
        Fremont
46
Good
38 
        Livermore
50
Good
43 
        Napa
53
Good
39 
        Oakland
57
Good
49 
        Redwood City
46
Good
36 
        San Francisco
57
Good
40 
        San Jose
55
Good
58 
        San Rafael
53
Good
40 
        Santa Rosa
53
Good
44 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
74
aqi not available
59 
        Fresno
50
aqi not available
48 
        Hanford
70
aqi not available
24 
        Madera
44
aqi not available
21 
        Merced
50
aqi not available
53 
        Modesto
57
aqi not available
60 
        Stockton
59
aqi not available
55 
        Visalia
50
aqi not available
71 
San Luis Obispo County
        Atascadero
44
35
26 
        Carrizo Plains
43
37
10 
        Morro Bay
35
30
29 
        Nipomo
42
40
38 
        Paso Robles
44
35
26 
        Red Hills
47
30
46 
        San Luis Obispo
40
33
33 
Santa Barbara County
        Carpinteria
Good
aqi not available
22 
        Gaviota Coast
Good
aqi not available
44 
        Goleta
Good
aqi not available
51 
        Lompoc
Good
aqi not available
46 
        Paradise Road
Good
aqi not available
33 
        Santa Barbara
Good
aqi not available
37 
        Santa Maria
Good
aqi not available
34 
        Santa Ynez
Good
aqi not available
20 
Santa Rosa Rancheria
aqi not available
aqi not available
23 
Sequoia/Kings Canyon National Parks
47
aqi not available
39 
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
56 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
31 
Ukiah
aqi not available
aqi not available
26 
Ventura County Area
        Ojai
45
45
20 
        Oxnard
45
45
40 
        Piru
50
45
33 
        Simi Valley
50
45
56 
        Thousand Oaks
45
45
45 
Western Nevada County
52
48
50 
Westmorland
84
66
31 
Willits
aqi not available
aqi not available
26 
Willows
aqi not available
aqi not available
25 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
58
aqi not available
45 
Yreka
aqi not available
aqi not available
25 
Yuba City/Marysville
Good
Good
73 
Yucca Vly
44
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.