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_20180426_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
Thu
Apr 26
Fri
Apr 27
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
36 
Bishop Paiute Tribe
aqi not available
aqi not available
12 
Chester
aqi not available
aqi not available
23 
Chico
Moderate
Moderate
55 
Death Valley National Park
54
aqi not available
67 
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
36 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
51 
Imperial Valley
93
68
77 
Joshua Tree National Park
aqi not available
aqi not available
105 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
44
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
30 
Los Angeles Area
        Antelope Vly
67
aqi not available
51 
        Anza Vly
50
aqi not available
65 
        Banning
132
aqi not available
55 
        Barstow
46
aqi not available
46 
        Big Bear Lake
67
aqi not available
 
        C San Bernardino M
100
aqi not available
64 
        C San Bernardino-1
76
aqi not available
92 
        C San Bernardino-2
68
aqi not available
92 
        Capistrano Vly
50
aqi not available
34 
        Central Coastal
46
aqi not available
34 
        Central LA CO
78
aqi not available
89 
        Central Orange-1
55
aqi not available
75 
        Central Orange-2
57
aqi not available
75 
        Coachella Vly
67
aqi not available
62 
        E San Bernardino
67
aqi not available
24 
        E San Fernando Vly
61
aqi not available
87 
        E San Gabriel V-1
66
aqi not available
87 
        E San Gabriel V-2
68
aqi not available
87 
        East Riverside CO
46
aqi not available
 
        Hemet/San Jacinto
50
aqi not available
56 
        Hesperia
67
aqi not available
47 
        Lake Elsinore
67
aqi not available
65 
        Metro Riverside CO
80
aqi not available
98 
        N Coastal Orange
50
aqi not available
76 
        NW Coastal LA
57
aqi not available
76 
        NW San Bernardino
70
aqi not available
92 
        Norco/Corona
66
aqi not available
98 
        North Orange CO
59
aqi not available
75 
        Perris Vly
67
aqi not available
56 
        Phelan
67
aqi not available
67 
        Pomona Walnut Vly
63
aqi not available
20 
        S Central LA CO
50
aqi not available
22 
        S San Gabriel Vly
50
aqi not available
 
        SW Coastal LA
57
aqi not available
76 
        SW San Bernardino
66
aqi not available
92 
        Saddleback Vly
38
aqi not available
75 
        San Gabriel Mts
61
aqi not available
87 
        Santa Clarita Vly
67
aqi not available
67 
        South Coastal LA
59
aqi not available
76 
        Southeast LA CO
63
aqi not available
75 
        Temecula Vly
57
aqi not available
65 
        Trona
46
aqi not available
50 
        Twentynine Palms
67
aqi not available
46 
        Victorville
46
aqi not available
40 
        W San Bernardino M
67
aqi not available
92 
        W San Fernando Vly
68
aqi not available
87 
        W San Gabriel Vly
63
aqi not available
89 
Mammoth Lakes
aqi not available
aqi not available
19 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
20 
Mono Lake
aqi not available
aqi not available
10 
Monterey Bay Area
        Carmel Valley
Good
aqi not available
30 
        Davenport
Good
aqi not available
 
        Hollister
Good
aqi not available
32 
        King City
Good
aqi not available
44 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
aqi not available
 
        Pinnacles National Monument
37
aqi not available
21 
        Salinas
Good
aqi not available
44 
        San Lorenzo Valley
Good
aqi not available
 
        Santa Cruz
Good
aqi not available
41 
        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
30 
Paradise
Moderate
Moderate
28 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
51 
Quincy
aqi not available
aqi not available
39 
Red Bluff
Good
aqi not available
36 
Redding
65
aqi not available
34 
Sacramento Area
        Arden Arcade-Del Paso Manor
42
25
52 
        Auburn
29
17
31 
        Colfax
29
17
46 
        Cool
aqi not available
aqi not available
39 
        Davis
33
25
25 
        Elk Grove
42
25
37 
        Folsom
42
25
33 
        Lincoln
29
17
 
        Natomas
42
25
 
        North Highlands
42
25
29 
        Placerville
aqi not available
aqi not available
39 
        Rio Vista
33
25
28 
        Roseville-Rocklin
29
17
29 
        Sacramento
42
25
31 
        Sloughhouse
42
25
56 
        Vacaville
33
25
28 
        Woodland
33
25
54 
San Diego Area
        San Diego Coast
Moderate
aqi not available
53 
        San Diego Foothills
Moderate
aqi not available
60 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
65 
San Francisco Area
        Concord
41
40
59 
        Fairfield
41
40
47 
        Fremont
42
41
70 
        Livermore
41
40
45 
        Napa
40
36
48 
        Oakland
50
35
52 
        Redwood City
42
41
70 
        San Francisco
50
35
34 
        San Jose
43
39
55 
        San Rafael
40
36
45 
        Santa Rosa
40
36
33 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
100
Moderate
38 
        Fresno
84
Moderate
47 
        Hanford
87
Moderate
20 
        Madera
64
Moderate
19 
        Merced
46
Moderate
52 
        Modesto
46
Moderate
52 
        Stockton
50
Moderate
45 
        Visalia
74
Moderate
56 
San Luis Obispo County
        Atascadero
46
44
29 
        Carrizo Plains
48
46
41 
        Morro Bay
37
37
36 
        Nipomo
50
72
38 
        Paso Robles
49
43
31 
        Red Hills
48
45
40 
        San Luis Obispo
37
37
35 
Santa Barbara County
        Carpinteria
Good
Good
35 
        Gaviota Coast
Good
Good
35 
        Goleta
Good
Good
53 
        Lompoc
Good
Good
45 
        Paradise Road
Good
Good
15 
        Santa Barbara
Good
Good
56 
        Santa Maria
Good
Good
41 
        Santa Ynez
Good
Good
22 
Santa Rosa Rancheria
aqi not available
aqi not available
49 
Sequoia/Kings Canyon National Parks
61
aqi not available
56 
South Lake Tahoe
aqi not available
aqi not available
15 
Tahoe City area
aqi not available
aqi not available
29 
Truckee
aqi not available
aqi not available
59 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
 
Ventura County Area
        Ojai
65
60
59 
        Oxnard
60
60
63 
        Piru
65
60
74 
        Simi Valley
65
60
66 
        Thousand Oaks
55
55
66 
Western Nevada County
aqi not available
aqi not available
42 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
29 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
37
aqi not available
50 
Yreka
aqi not available
aqi not available
30 
Yuba City/Marysville
Good
Good
43 
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.