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_20191016_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
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 Air Resources 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
Oct 16
Thu
Oct 17
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
40 
Bishop Paiute Tribe
aqi not available
aqi not available
15 
Brawley
64
103
22 
Calexico
64
103
44 
Chester
aqi not available
aqi not available
18 
Chico
Good
Good
55 
Death Valley National Park
43
42
40 
El Centro
64
103
44 
Eureka
aqi not available
aqi not available
16 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
31 
Great Basin Air District
aqi not available
aqi not available
40 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Good
57 
Imperial Valley
64
103
44 
Indio - Twenty Nine Palms Reservation
aqi not available
aqi not available
38 
Joshua Tree National Park
aqi not available
aqi not available
48 
La Grange
aqi not available
aqi not available
 
Lassen Volcanic National Park
74
50
51 
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
 
Los Angeles Area
        Antelope Vly
71
44
45 
        Anza Vly
44
64
58 
        Banning
50
74
49 
        Barstow
44
46
41 
        Big Bear Lake
50
54
 
        C San Bernardino M
67
74
54 
        C San Bernardino-1
41
71
54 
        C San Bernardino-2
41
71
54 
        Capistrano Vly
54
39
80 
        Central Coastal
58
37
80 
        Central LA CO
55
66
67 
        Central Orange-1
61
50
58 
        Central Orange-2
61
50
58 
        Coachella Vly
46
77
47 
        E San Bernardino
77
71
64 
        E San Fernando Vly
50
59
44 
        E San Gabriel V-1
64
42
52 
        E San Gabriel V-2
64
46
52 
        East Riverside CO
58
64
 
        Hemet/San Jacinto
48
71
64 
        Hesperia
46
64
47 
        Lake Elsinore
49
58
54 
        Metro Riverside CO
67
77
55 
        N Coastal Orange
71
30
67 
        NW Coastal LA
61
48
67 
        NW San Bernardino
84
61
44 
        Norco/Corona
74
77
58 
        North Orange CO
58
53
58 
        Perris Vly
54
67
64 
        Phelan
64
51
47 
        Pomona Walnut Vly
74
57
35 
        S Central LA CO
50
53
43 
        S San Gabriel Vly
50
53
 
        SW Coastal LA
50
50
67 
        SW San Bernardino
77
59
44 
        Saddleback Vly
64
42
80 
        San Gabriel Mts
71
77
52 
        Santa Clarita Vly
74
71
47 
        South Coastal LA
55
46
67 
        Southeast LA CO
50
53
58 
        Temecula Vly
50
67
58 
        Trona
48
54
27 
        Twentynine Palms
58
64
41 
        Victorville
61
50
49 
        W San Bernardino M
84
38
54 
        W San Fernando Vly
74
71
44 
        W San Gabriel Vly
49
61
53 
Mammoth Lakes
aqi not available
aqi not available
25 
Markleeville
aqi not available
aqi not available
 
Mendocino County
aqi not available
aqi not available
 
Mono Lake
aqi not available
aqi not available
12 
Monterey Bay Area
        Carmel Valley
Good
Good
 
        Davenport
Good
Good
 
        Hollister
Good
Good
 
        King City
Good
Good
 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
 
        Salinas
Good
Good
26 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
55 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Niland
64
103
14 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
23 
Paradise
Moderate
Good
61 
Point Arena
aqi not available
aqi not available
31 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
26 
Quincy
aqi not available
aqi not available
35 
Red Bluff
Good
Good
61 
Redding
aqi not available
aqi not available
47 
Sacramento Area
        Arden Arcade-Del Paso Manor
50
37
49 
        Auburn
57
42
64 
        Colfax
57
42
61 
        Cool
54
40
64 
        Davis
53
35
43 
        Elk Grove
50
37
44 
        Folsom
50
37
 
        Lincoln
57
42
71 
        Natomas
50
37
 
        North Highlands
50
37
45 
        Placerville
54
40
64 
        Rio Vista
53
35
17 
        Roseville-Rocklin
57
42
44 
        Sacramento
50
37
45 
        Sloughhouse
50
37
61 
        Vacaville
53
35
34 
        Woodland
53
35
45 
San Diego Area
        San Diego Coast
Moderate
Moderate
49 
        San Diego Foothills
Moderate
Moderate
58 
        San Diego Mesa and Inland Valley
Moderate
Moderate
49 
San Francisco Area
        Concord
51
37
32 
        Fairfield
51
37
33 
        Fremont
46
34
38 
        Livermore
51
37
31 
        Napa
50
38
31 
        Oakland
53
42
35 
        Redwood City
46
34
38 
        San Francisco
53
42
29 
        San Jose
50
35
57 
        San Rafael
50
38
29 
        Santa Rosa
50
38
30 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
101
97
64 
        Fresno
93
78
84 
        Hanford
91
99
71 
        Madera
90
83
61 
        Merced
90
78
72 
        Modesto
90
76
71 
        Stockton
64
73
42 
        Visalia
87
88
101 
San Luis Obispo County
        Atascadero
52
41
42 
        Carrizo Plains
80
47
54 
        Morro Bay
41
35
33 
        Nipomo
42
61
42 
        Paso Robles
62
40
50 
        Red Hills
83
36
50 
        San Luis Obispo
43
36
38 
Santa Barbara County
        Carpinteria
Moderate
Moderate
39 
        Gaviota Coast
Moderate
Moderate
48 
        Goleta
Good
Good
43 
        Lompoc
Good
Good
52 
        Paradise Road
Moderate
Good
50 
        Santa Barbara
Good
Good
60 
        Santa Maria
Good
Moderate
44 
        Santa Ynez
Moderate
Moderate
40 
Santa Rosa Rancheria
aqi not available
aqi not available
108 
Sequoia/Kings Canyon National Parks
49
71
71 
South Lake Tahoe
aqi not available
aqi not available
41 
Tahoe City area
aqi not available
aqi not available
Truckee
aqi not available
aqi not available
24 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
54 
Ukiah
aqi not available
aqi not available
31 
Ventura County Area
        Ojai
65
50
47 
        Oxnard
50
45
36 
        Piru
60
55
49 
        Simi Valley
75
60
51 
        Thousand Oaks
50
50
48 
Western Nevada County
aqi not available
aqi not available
61 
Westmorland
64
103
37 
Willits
aqi not available
aqi not available
31 
Willows
aqi not available
aqi not available
64 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
49
45
50 
Yreka
aqi not available
aqi not available
41 
Yuba City/Marysville
84
61
55 
Yucca Vly
49
64
 
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.