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
37 
Bishop Paiute Tribe
aqi not available
aqi not available
37 
Brawley
64
103
39 
Calexico
64
103
49 
Chester
aqi not available
aqi not available
15 
Chico
Good
Good
57 
Death Valley National Park
43
42
38 
El Centro
64
103
47 
Eureka
aqi not available
aqi not available
10 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
30 
Great Basin Air District
aqi not available
aqi not available
36 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Good
61 
Imperial Valley
64
103
51 
Indio - Twenty Nine Palms Reservation
aqi not available
aqi not available
51 
Joshua Tree National Park
aqi not available
aqi not available
46 
La Grange
aqi not available
aqi not available
 
Lassen Volcanic National Park
74
50
50 
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
36 
        Anza Vly
44
64
51 
        Banning
50
74
44 
        Barstow
44
46
30 
        Big Bear Lake
50
54
 
        C San Bernardino M
67
74
55 
        C San Bernardino-1
41
71
55 
        C San Bernardino-2
41
71
55 
        Capistrano Vly
54
39
47 
        Central Coastal
58
37
47 
        Central LA CO
55
66
56 
        Central Orange-1
61
50
52 
        Central Orange-2
61
50
52 
        Coachella Vly
46
77
62 
        E San Bernardino
77
71
45 
        E San Fernando Vly
50
59
31 
        E San Gabriel V-1
64
42
56 
        E San Gabriel V-2
64
46
56 
        East Riverside CO
58
64
 
        Hemet/San Jacinto
48
71
47 
        Hesperia
46
64
43 
        Lake Elsinore
49
58
51 
        Metro Riverside CO
67
77
72 
        N Coastal Orange
71
30
52 
        NW Coastal LA
61
48
52 
        NW San Bernardino
84
61
55 
        Norco/Corona
74
77
72 
        North Orange CO
58
53
52 
        Perris Vly
54
67
47 
        Phelan
64
51
45 
        Pomona Walnut Vly
74
57
25 
        S Central LA CO
50
53
35 
        S San Gabriel Vly
50
53
 
        SW Coastal LA
50
50
52 
        SW San Bernardino
77
59
55 
        Saddleback Vly
64
42
52 
        San Gabriel Mts
71
77
56 
        Santa Clarita Vly
74
71
28 
        South Coastal LA
55
46
52 
        Southeast LA CO
50
53
52 
        Temecula Vly
50
67
51 
        Trona
48
54
40 
        Twentynine Palms
58
64
30 
        Victorville
61
50
36 
        W San Bernardino M
84
38
55 
        W San Fernando Vly
74
71
31 
        W San Gabriel Vly
49
61
56 
Mammoth Lakes
aqi not available
aqi not available
23 
Markleeville
aqi not available
aqi not available
 
Mendocino County
aqi not available
aqi not available
 
Mono Lake
aqi not available
aqi not available
17 
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
31 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
37 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Niland
64
103
26 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
20 
Paradise
Moderate
Good
61 
Point Arena
aqi not available
aqi not available
30 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
30 
Quincy
aqi not available
aqi not available
62 
Red Bluff
Good
Good
81 
Redding
aqi not available
aqi not available
43 
Sacramento Area
        Arden Arcade-Del Paso Manor
50
37
39 
        Auburn
57
42
61 
        Colfax
57
42
40 
        Cool
54
40
58 
        Davis
53
35
31 
        Elk Grove
50
37
34 
        Folsom
50
37
 
        Lincoln
57
42
46 
        Natomas
50
37
 
        North Highlands
50
37
32 
        Placerville
54
40
58 
        Rio Vista
53
35
18 
        Roseville-Rocklin
57
42
45 
        Sacramento
50
37
36 
        Sloughhouse
50
37
30 
        Vacaville
53
35
34 
        Woodland
53
35
30 
San Diego Area
        San Diego Coast
Moderate
Moderate
37 
        San Diego Foothills
Moderate
Moderate
48 
        San Diego Mesa and Inland Valley
Moderate
Moderate
50 
San Francisco Area
        Concord
51
37
28 
        Fairfield
51
37
32 
        Fremont
46
34
33 
        Livermore
51
37
31 
        Napa
50
38
29 
        Oakland
53
42
36 
        Redwood City
46
34
26 
        San Francisco
53
42
28 
        San Jose
50
35
33 
        San Rafael
50
38
59 
        Santa Rosa
50
38
28 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
101
97
62 
        Fresno
93
78
86 
        Hanford
91
99
51 
        Madera
90
83
44 
        Merced
90
78
70 
        Modesto
90
76
60 
        Stockton
64
73
31 
        Visalia
87
88
98 
San Luis Obispo County
        Atascadero
52
41
51 
        Carrizo Plains
80
47
41 
        Morro Bay
41
35
29 
        Nipomo
42
61
31 
        Paso Robles
62
40
51 
        Red Hills
83
36
49 
        San Luis Obispo
43
36
33 
Santa Barbara County
        Carpinteria
Moderate
Moderate
22 
        Gaviota Coast
Moderate
Moderate
50 
        Goleta
Good
Good
48 
        Lompoc
Good
Good
31 
        Paradise Road
Moderate
Good
39 
        Santa Barbara
Good
Good
54 
        Santa Maria
Good
Moderate
29 
        Santa Ynez
Moderate
Moderate
31 
Santa Rosa Rancheria
aqi not available
aqi not available
129 
Sequoia/Kings Canyon National Parks
49
71
50 
South Lake Tahoe
aqi not available
aqi not available
43 
Tahoe City area
aqi not available
aqi not available
Truckee
aqi not available
aqi not available
19 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
33 
Ukiah
aqi not available
aqi not available
30 
Ventura County Area
        Ojai
65
50
31 
        Oxnard
50
45
32 
        Piru
60
55
26 
        Simi Valley
75
60
48 
        Thousand Oaks
50
50
51 
Western Nevada County
aqi not available
aqi not available
54 
Westmorland
64
103
51 
Willits
aqi not available
aqi not available
30 
Willows
aqi not available
aqi not available
79 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
49
45
48 
Yreka
aqi not available
aqi not available
31 
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.