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_20180423_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
Mon
Apr 23
Tue
Apr 24
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
23 
Chester
aqi not available
aqi not available
33 
Chico
Good
Good
45 
Death Valley National Park
41
42
48 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
51 
Great Basin Air District
aqi not available
aqi not available
47 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
46 
Imperial Valley
105
108
90 
Joshua Tree National Park
aqi not available
aqi not available
87 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
35
39
38 
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
21 
Los Angeles Area
        Antelope Vly
46
46
61 
        Anza Vly
59
46
84 
        Banning
67
67
80 
        Barstow
46
46
54 
        Big Bear Lake
67
67
 
        C San Bernardino M
100
100
84 
        C San Bernardino-1
100
72
80 
        C San Bernardino-2
100
67
80 
        Capistrano Vly
59
37
47 
        Central Coastal
55
55
47 
        Central LA CO
55
53
108 
        Central Orange-1
53
37
74 
        Central Orange-2
59
50
74 
        Coachella Vly
70
72
97 
        E San Bernardino
100
100
58 
        E San Fernando Vly
53
57
87 
        E San Gabriel V-1
67
59
79 
        E San Gabriel V-2
67
53
79 
        East Riverside CO
46
46
 
        Hemet/San Jacinto
67
46
93 
        Hesperia
46
46
77 
        Lake Elsinore
100
67
84 
        Metro Riverside CO
100
67
87 
        N Coastal Orange
55
55
67 
        NW Coastal LA
50
46
67 
        NW San Bernardino
100
61
78 
        Norco/Corona
100
59
84 
        North Orange CO
66
37
74 
        Perris Vly
100
67
93 
        Phelan
67
67
64 
        Pomona Walnut Vly
67
55
40 
        S Central LA CO
42
42
33 
        S San Gabriel Vly
67
38
 
        SW Coastal LA
53
50
67 
        SW San Bernardino
100
63
78 
        Saddleback Vly
67
46
74 
        San Gabriel Mts
67
55
79 
        Santa Clarita Vly
67
67
54 
        South Coastal LA
55
53
67 
        Southeast LA CO
57
50
74 
        Temecula Vly
63
38
84 
        Trona
42
42
61 
        Twentynine Palms
67
67
54 
        Victorville
46
46
74 
        W San Bernardino M
67
67
84 
        W San Fernando Vly
46
46
87 
        W San Gabriel Vly
100
53
108 
Mammoth Lakes
aqi not available
aqi not available
11 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
51 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
45 
        Davenport
Good
Good
 
        Hollister
Good
Good
38 
        King City
Good
Good
46 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
48 
        Salinas
Good
Good
48 
        San Lorenzo Valley
Moderate
Good
 
        Santa Cruz
Good
Good
31 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
29 
Paradise
Good
Good
43 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
20 
Quincy
aqi not available
aqi not available
25 
Red Bluff
aqi not available
aqi not available
 
Redding
42
aqi not available
42 
Sacramento Area
        Arden Arcade-Del Paso Manor
53
46
48 
        Auburn
29
33
41 
        Colfax
29
33
44 
        Cool
aqi not available
aqi not available
42 
        Davis
53
46
43 
        Elk Grove
53
46
42 
        Folsom
53
46
37 
        Lincoln
29
33
 
        Natomas
53
46
 
        North Highlands
53
46
36 
        Placerville
aqi not available
aqi not available
43 
        Rio Vista
53
46
39 
        Roseville-Rocklin
29
33
34 
        Sacramento
53
46
32 
        Sloughhouse
53
46
38 
        Vacaville
53
46
40 
        Woodland
53
46
52 
San Diego Area
        San Diego Coast
Good
Good
43 
        San Diego Foothills
Moderate
Moderate
54 
        San Diego Mesa and Inland Valley
Moderate
Moderate
73 
San Francisco Area
        Concord
50
50
48 
        Fairfield
50
50
68 
        Fremont
44
42
82 
        Livermore
50
50
44 
        Napa
50
50
66 
        Oakland
57
57
74 
        Redwood City
44
42
82 
        San Francisco
57
57
 
        San Jose
50
50
56 
        San Rafael
50
50
67 
        Santa Rosa
50
50
53 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
93
50
87 
        Fresno
67
Moderate
90 
        Hanford
74
Moderate
61 
        Madera
61
Moderate
80 
        Merced
58
Moderate
41 
        Modesto
58
Moderate
53 
        Stockton
57
Moderate
52 
        Visalia
77
Moderate
56 
San Luis Obispo County
        Atascadero
48
49
41 
        Carrizo Plains
47
49
49 
        Morro Bay
38
37
30 
        Nipomo
38
37
35 
        Paso Robles
47
50
58 
        Red Hills
48
50
45 
        San Luis Obispo
38
37
34 
Santa Barbara County
        Carpinteria
Good
Good
41 
        Gaviota Coast
Good
Good
44 
        Goleta
Good
Moderate
50 
        Lompoc
Good
Good
40 
        Paradise Road
Good
Good
44 
        Santa Barbara
Good
Moderate
39 
        Santa Maria
Good
Good
32 
        Santa Ynez
Good
Good
41 
Santa Rosa Rancheria
aqi not available
aqi not available
58 
Sequoia/Kings Canyon National Parks
48
49
49 
South Lake Tahoe
aqi not available
aqi not available
14 
Tahoe City area
aqi not available
aqi not available
18 
Truckee
aqi not available
aqi not available
21 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
 
Ventura County Area
        Ojai
75
65
57 
        Oxnard
50
50
53 
        Piru
75
65
61 
        Simi Valley
75
65
80 
        Thousand Oaks
60
55
71 
Western Nevada County
48
48
40 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
36 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
39
38
45 
Yreka
aqi not available
aqi not available
43 
Yuba City/Marysville
Good
aqi not available
40 
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.