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_20180425_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
Wed
Apr 25
Thu
Apr 26
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
47 
Bishop Paiute Tribe
aqi not available
aqi not available
29 
Chester
aqi not available
aqi not available
38 
Chico
Moderate
Moderate
56 
Death Valley National Park
49
aqi not available
64 
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
47 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
49 
Imperial Valley
105
100
80 
Joshua Tree National Park
aqi not available
aqi not available
112 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
44
aqi not available
47 
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
33 
Los Angeles Area
        Antelope Vly
67
67
84 
        Anza Vly
57
50
84 
        Banning
67
132
90 
        Barstow
46
46
77 
        Big Bear Lake
100
67
 
        C San Bernardino M
132
100
77 
        C San Bernardino-1
70
76
95 
        C San Bernardino-2
100
68
95 
        Capistrano Vly
50
50
34 
        Central Coastal
50
46
34 
        Central LA CO
61
78
105 
        Central Orange-1
55
55
64 
        Central Orange-2
59
57
64 
        Coachella Vly
100
67
87 
        E San Bernardino
100
67
58 
        E San Fernando Vly
61
61
105 
        E San Gabriel V-1
67
66
69 
        E San Gabriel V-2
67
68
69 
        East Riverside CO
46
46
 
        Hemet/San Jacinto
67
50
74 
        Hesperia
67
67
90 
        Lake Elsinore
100
67
84 
        Metro Riverside CO
100
80
91 
        N Coastal Orange
55
50
66 
        NW Coastal LA
55
57
66 
        NW San Bernardino
100
70
95 
        Norco/Corona
68
66
91 
        North Orange CO
61
59
64 
        Perris Vly
100
67
74 
        Phelan
67
67
115 
        Pomona Walnut Vly
63
63
31 
        S Central LA CO
46
50
33 
        S San Gabriel Vly
50
50
 
        SW Coastal LA
55
57
66 
        SW San Bernardino
67
66
95 
        Saddleback Vly
50
38
64 
        San Gabriel Mts
67
61
69 
        Santa Clarita Vly
100
67
62 
        South Coastal LA
59
59
66 
        Southeast LA CO
63
63
64 
        Temecula Vly
67
57
84 
        Trona
46
46
67 
        Twentynine Palms
67
67
77 
        Victorville
46
46
100 
        W San Bernardino M
67
67
95 
        W San Fernando Vly
55
68
105 
        W San Gabriel Vly
67
63
103 
Mammoth Lakes
aqi not available
aqi not available
14 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
38 
Mono Lake
aqi not available
aqi not available
15 
Monterey Bay Area
        Carmel Valley
Good
aqi not available
21 
        Davenport
Good
aqi not available
 
        Hollister
Good
aqi not available
44 
        King City
Good
aqi not available
53 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
aqi not available
 
        Pinnacles National Monument
44
aqi not available
44 
        Salinas
Good
aqi not available
62 
        San Lorenzo Valley
Good
aqi not available
 
        Santa Cruz
Good
aqi not available
62 
        Scotts Valley
Good
aqi not available
 
        Watsonville
Good
aqi not available
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
40 
Paradise
Moderate
Moderate
40 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
27 
Quincy
aqi not available
aqi not available
32 
Red Bluff
Good
Good
28 
Redding
aqi not available
aqi not available
38 
Sacramento Area
        Arden Arcade-Del Paso Manor
53
42
62 
        Auburn
46
29
34 
        Colfax
46
29
48 
        Cool
aqi not available
aqi not available
40 
        Davis
53
33
55 
        Elk Grove
53
42
52 
        Folsom
53
42
38 
        Lincoln
46
29
 
        Natomas
53
42
 
        North Highlands
53
42
28 
        Placerville
aqi not available
aqi not available
44 
        Rio Vista
53
33
45 
        Roseville-Rocklin
46
29
33 
        Sacramento
53
42
55 
        Sloughhouse
53
42
56 
        Vacaville
53
33
39 
        Woodland
53
33
54 
San Diego Area
        San Diego Coast
Good
Moderate
59 
        San Diego Foothills
Moderate
Moderate
44 
        San Diego Mesa and Inland Valley
Moderate
Moderate
76 
San Francisco Area
        Concord
43
41
60 
        Fairfield
43
41
55 
        Fremont
42
42
75 
        Livermore
43
41
62 
        Napa
50
40
56 
        Oakland
55
50
58 
        Redwood City
42
42
75 
        San Francisco
55
50
32 
        San Jose
46
43
70 
        San Rafael
50
40
51 
        Santa Rosa
50
40
40 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
93
Moderate
58 
        Fresno
84
Moderate
66 
        Hanford
74
Moderate
41 
        Madera
71
Moderate
28 
        Merced
58
Moderate
46 
        Modesto
64
Moderate
55 
        Stockton
59
Moderate
62 
        Visalia
67
Moderate
59 
San Luis Obispo County
        Atascadero
49
46
33 
        Carrizo Plains
55
48
50 
        Morro Bay
38
37
28 
        Nipomo
37
50
25 
        Paso Robles
50
49
33 
        Red Hills
55
48
44 
        San Luis Obispo
37
37
22 
Santa Barbara County
        Carpinteria
Good
Good
38 
        Gaviota Coast
Good
Good
41 
        Goleta
Moderate
Good
52 
        Lompoc
Good
Good
38 
        Paradise Road
Good
Good
25 
        Santa Barbara
Moderate
Good
58 
        Santa Maria
Good
Good
25 
        Santa Ynez
Good
Good
27 
Santa Rosa Rancheria
aqi not available
aqi not available
44 
Sequoia/Kings Canyon National Parks
49
aqi not available
48 
South Lake Tahoe
aqi not available
aqi not available
15 
Tahoe City area
aqi not available
aqi not available
35 
Truckee
aqi not available
aqi not available
30 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
 
Ventura County Area
        Ojai
55
50
55 
        Oxnard
55
60
66 
        Piru
55
55
53 
        Simi Valley
55
55
74 
        Thousand Oaks
55
55
76 
Western Nevada County
50
aqi not available
45 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
42 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
40
aqi not available
51 
Yreka
aqi not available
aqi not available
44 
Yuba City/Marysville
aqi not available
aqi not available
52 
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.