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_20171123_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
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
Nov 23
Fri
Nov 24
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
21 
Bishop Paiute Tribe
aqi not available
aqi not available
Chester
aqi not available
aqi not available
68 
Chico
Moderate
Moderate
57 
Death Valley National Park
26
23
24 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
10 
Great Basin Air District
aqi not available
aqi not available
21 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
66 
Imperial Valley
53
73
31 
Joshua Tree National Park
aqi not available
aqi not available
31 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
31
32
20 
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
10 
Los Angeles Area
        Antelope Vly
46
42
27 
        Anza Vly
74
66
44 
        Banning
67
50
32 
        Barstow
42
42
18 
        Big Bear Lake
46
46
 
        C San Bernardino M
46
46
23 
        C San Bernardino-1
70
80
49 
        C San Bernardino-2
72
72
49 
        Capistrano Vly
50
57
47 
        Central Coastal
46
55
47 
        Central LA CO
63
66
43 
        Central Orange-1
57
76
31 
        Central Orange-2
59
68
31 
        Coachella Vly
50
46
34 
        E San Bernardino
59
57
37 
        E San Fernando Vly
61
61
43 
        E San Gabriel V-1
66
76
47 
        E San Gabriel V-2
55
70
47 
        East Riverside CO
50
50
 
        Hemet/San Jacinto
57
57
43 
        Hesperia
50
50
31 
        Lake Elsinore
74
78
44 
        Metro Riverside CO
74
82
54 
        N Coastal Orange
50
57
29 
        NW Coastal LA
61
63
34 
        NW San Bernardino
70
78
49 
        Norco/Corona
70
72
50 
        North Orange CO
59
76
36 
        Perris Vly
70
72
43 
        Phelan
50
50
33 
        Pomona Walnut Vly
61
74
46 
        S Central LA CO
50
53
31 
        S San Gabriel Vly
59
57
 
        SW Coastal LA
66
66
34 
        SW San Bernardino
72
70
49 
        Saddleback Vly
50
57
47 
        San Gabriel Mts
50
59
46 
        Santa Clarita Vly
50
53
35 
        South Coastal LA
66
68
34 
        Southeast LA CO
63
74
31 
        Temecula Vly
72
70
44 
        Trona
50
46
20 
        Twentynine Palms
46
46
18 
        Victorville
50
50
29 
        W San Bernardino M
57
46
49 
        W San Fernando Vly
57
57
43 
        W San Gabriel Vly
61
70
41 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
13 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
37 
        Davenport
Good
Good
 
        Hollister
Good
Good
41 
        King City
Good
Good
35 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
34 
        Salinas
Good
Good
51 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
48 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
15 
Paradise
Moderate
Moderate
11 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
29 
Red Bluff
aqi not available
aqi not available
 
Redding
68
65
55 
Sacramento Area
        Arden Arcade-Del Paso Manor
91
93
67 
        Auburn
57
50
53 
        Colfax
57
50
20 
        Cool
aqi not available
aqi not available
 
        Davis
68
55
54 
        Elk Grove
91
93
58 
        Folsom
91
93
54 
        Lincoln
57
50
 
        Natomas
91
93
 
        North Highlands
91
93
        Placerville
aqi not available
aqi not available
14 
        Rio Vista
68
55
        Roseville-Rocklin
57
50
34 
        Sacramento
91
93
42 
        Sloughhouse
91
93
33 
        Vacaville
68
55
33 
        Woodland
68
55
52 
San Diego Area
        San Diego Coast
Moderate
Good
60 
        San Diego Foothills
Moderate
Moderate
40 
        San Diego Mesa and Inland Valley
Moderate
Moderate
46 
San Francisco Area
        Concord
91
68
48 
        Fairfield
91
68
44 
        Fremont
87
61
30 
        Livermore
91
68
27 
        Napa
84
68
65 
        Oakland
93
70
73 
        Redwood City
87
61
30 
        San Francisco
93
70
55 
        San Jose
91
72
40 
        San Rafael
84
68
52 
        Santa Rosa
84
68
29 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
91
124
135 
        Fresno
95
95
47 
        Hanford
144
144
152 
        Madera
89
89
37 
        Merced
95
78
102 
        Modesto
85
64
30 
        Stockton
66
57
14 
        Visalia
99
137
154 
San Luis Obispo County
        Atascadero
50
48
42 
        Carrizo Plains
46
44
41 
        Morro Bay
45
43
31 
        Nipomo
50
48
59 
        Paso Robles
50
47
42 
        Red Hills
48
46
50 
        San Luis Obispo
49
44
34 
Santa Barbara County
        Carpinteria
Good
Good
23 
        Gaviota Coast
Good
Good
37 
        Goleta
Good
Good
43 
        Lompoc
Good
Good
53 
        Paradise Road
Good
Good
35 
        Santa Barbara
Good
Good
48 
        Santa Maria
Good
Good
46 
        Santa Ynez
Good
Good
36 
Santa Rosa Rancheria
aqi not available
aqi not available
72 
Sequoia/Kings Canyon National Parks
35
38
81 
South Lake Tahoe
aqi not available
aqi not available
Tahoe City area
aqi not available
aqi not available
14 
Truckee
aqi not available
aqi not available
35 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
29 
Ventura County Area
        Ojai
50
50
29 
        Oxnard
50
50
33 
        Piru
50
50
32 
        Simi Valley
50
50
34 
        Thousand Oaks
50
50
34 
Western Nevada County
35
35
30 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
29 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
31
35
67 
Yuba City/Marysville
Moderate
Moderate
90 
Yucca Vly
50
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.