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
64 
Bishop Paiute Tribe
aqi not available
aqi not available
34 
Chester
aqi not available
aqi not available
34 
Chico
Moderate
Moderate
62 
Death Valley National Park
50
49
87 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
18 
Great Basin Air District
aqi not available
aqi not available
64 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
46 
Imperial Valley
93
68
66 
Joshua Tree National Park
aqi not available
aqi not available
108 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
42
40
 
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
20 
Los Angeles Area
        Antelope Vly
67
67
64 
        Anza Vly
50
63
80 
        Banning
132
132
97 
        Barstow
46
46
84 
        Big Bear Lake
67
100
 
        C San Bernardino M
100
132
61 
        C San Bernardino-1
76
72
84 
        C San Bernardino-2
68
68
84 
        Capistrano Vly
50
50
44 
        Central Coastal
46
50
44 
        Central LA CO
78
70
96 
        Central Orange-1
55
63
70 
        Central Orange-2
57
61
70 
        Coachella Vly
67
132
115 
        E San Bernardino
67
100
50 
        E San Fernando Vly
61
68
72 
        E San Gabriel V-1
66
68
78 
        E San Gabriel V-2
68
61
78 
        East Riverside CO
46
50
 
        Hemet/San Jacinto
50
67
74 
        Hesperia
67
50
84 
        Lake Elsinore
67
74
80 
        Metro Riverside CO
80
100
85 
        N Coastal Orange
50
55
65 
        NW Coastal LA
57
55
65 
        NW San Bernardino
70
72
84 
        Norco/Corona
66
74
85 
        North Orange CO
59
74
70 
        Perris Vly
67
100
74 
        Phelan
67
67
87 
        Pomona Walnut Vly
63
63
39 
        S Central LA CO
50
53
26 
        S San Gabriel Vly
50
53
 
        SW Coastal LA
57
55
65 
        SW San Bernardino
66
67
84 
        Saddleback Vly
38
50
70 
        San Gabriel Mts
61
67
78 
        Santa Clarita Vly
67
67
67 
        South Coastal LA
59
55
65 
        Southeast LA CO
63
68
70 
        Temecula Vly
57
70
80 
        Trona
46
46
100 
        Twentynine Palms
67
100
84 
        Victorville
46
50
108 
        W San Bernardino M
67
67
84 
        W San Fernando Vly
68
78
72 
        W San Gabriel Vly
63
67
96 
Mammoth Lakes
aqi not available
aqi not available
13 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
22 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
31 
        Davenport
Good
Good
 
        Hollister
Good
Good
43 
        King City
Good
Good
48 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
37
40
41 
        Salinas
Good
Good
52 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
52 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
25 
Paradise
Moderate
Moderate
35 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
32 
Quincy
aqi not available
aqi not available
41 
Red Bluff
Good
aqi not available
43 
Redding
65
aqi not available
46 
Sacramento Area
        Arden Arcade-Del Paso Manor
50
33
48 
        Auburn
42
25
41 
        Colfax
42
25
51 
        Cool
aqi not available
aqi not available
46 
        Davis
50
29
38 
        Elk Grove
50
33
38 
        Folsom
50
33
35 
        Lincoln
42
25
 
        Natomas
50
33
 
        North Highlands
50
33
33 
        Placerville
aqi not available
aqi not available
46 
        Rio Vista
50
29
51 
        Roseville-Rocklin
42
25
33 
        Sacramento
50
33
30 
        Sloughhouse
50
33
53 
        Vacaville
50
29
32 
        Woodland
50
29
48 
San Diego Area
        San Diego Coast
Moderate
Good
51 
        San Diego Foothills
Moderate
Moderate
56 
        San Diego Mesa and Inland Valley
Moderate
Moderate
58 
San Francisco Area
        Concord
41
40
59 
        Fairfield
41
40
48 
        Fremont
42
41
72 
        Livermore
41
40
52 
        Napa
40
36
53 
        Oakland
50
35
53 
        Redwood City
42
41
72 
        San Francisco
50
35
40 
        San Jose
43
39
56 
        San Rafael
40
36
42 
        Santa Rosa
40
36
37 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
100
Moderate
74 
        Fresno
84
Moderate
56 
        Hanford
87
Moderate
44 
        Madera
64
Moderate
40 
        Merced
46
Moderate
66 
        Modesto
46
Moderate
51 
        Stockton
50
Moderate
53 
        Visalia
74
Moderate
54 
San Luis Obispo County
        Atascadero
38
37
33 
        Carrizo Plains
48
46
42 
        Morro Bay
37
37
38 
        Nipomo
50
72
49 
        Paso Robles
49
43
35 
        Red Hills
46
45
40 
        San Luis Obispo
37
37
42 
Santa Barbara County
        Carpinteria
Good
Good
43 
        Gaviota Coast
Good
Good
40 
        Goleta
Good
Good
53 
        Lompoc
Good
Good
41 
        Paradise Road
Good
Good
31 
        Santa Barbara
Good
Good
52 
        Santa Maria
Good
Good
46 
        Santa Ynez
Good
Good
25 
Santa Rosa Rancheria
aqi not available
aqi not available
48 
Sequoia/Kings Canyon National Parks
64
54
73 
South Lake Tahoe
aqi not available
aqi not available
11 
Tahoe City area
aqi not available
aqi not available
25 
Truckee
aqi not available
aqi not available
45 
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
57 
        Piru
65
60
73 
        Simi Valley
65
60
59 
        Thousand Oaks
55
55
58 
Western Nevada County
aqi not available
aqi not available
44 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
79 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
38
48
61 
Yreka
aqi not available
aqi not available
54 
Yuba City/Marysville
Good
Good
45 
Yucca Vly
46
50
 
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.