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This is not the current AirNow website. To navigate to the current AirNow website, please go to www.airnow.gov. This website is historical material reflecting the AirNow website as it existed on September 12, 2018. This website is no longer updated and links to external websites and some internal pages may not work.

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_20180923_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
Sun
Sep 23
Mon
Sep 24
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
19 
Bishop Paiute Tribe
aqi not available
aqi not available
11 
Chester
aqi not available
aqi not available
22 
Chico
Moderate
aqi not available
45 
Death Valley National Park
45
aqi not available
38 
Eureka
aqi not available
aqi not available
19 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
Great Basin Air District
aqi not available
aqi not available
37 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
31 
Imperial Valley
aqi not available
aqi not available
50 
Joshua Tree National Park
aqi not available
aqi not available
41 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
45
aqi not available
48 
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
95
79
36 
        Anza Vly
64
51
46 
        Banning
85
79
45 
        Barstow
64
54
48 
        Big Bear Lake
104
76
 
        C San Bernardino M
111
92
27 
        C San Bernardino-1
104
89
48 
        C San Bernardino-2
85
95
48 
        Capistrano Vly
45
40
22 
        Central Coastal
46
46
22 
        Central LA CO
64
57
57 
        Central Orange-1
57
52
32 
        Central Orange-2
50
52
32 
        Coachella Vly
89
76
87 
        E San Bernardino
114
104
17 
        E San Fernando Vly
82
57
54 
        E San Gabriel V-1
76
89
52 
        E San Gabriel V-2
89
89
52 
        East Riverside CO
76
70
 
        Hemet/San Jacinto
76
70
46 
        Hesperia
98
67
27 
        Lake Elsinore
76
101
33 
        Metro Riverside CO
98
95
62 
        N Coastal Orange
50
50
53 
        NW Coastal LA
50
50
53 
        NW San Bernardino
101
101
48 
        Norco/Corona
101
76
62 
        North Orange CO
76
50
32 
        Perris Vly
79
95
46 
        Phelan
101
89
34 
        Pomona Walnut Vly
70
70
11 
        S Central LA CO
54
52
10 
        S San Gabriel Vly
70
54
 
        SW Coastal LA
52
50
53 
        SW San Bernardino
95
70
48 
        Saddleback Vly
60
47
32 
        San Gabriel Mts
67
73
52 
        Santa Clarita Vly
92
98
39 
        South Coastal LA
45
36
53 
        Southeast LA CO
49
42
32 
        Temecula Vly
45
42
46 
        Trona
64
64
28 
        Twentynine Palms
76
70
48 
        Victorville
46
46
37 
        W San Bernardino M
95
60
48 
        W San Fernando Vly
51
48
54 
        W San Gabriel Vly
89
79
57 
Mammoth Lakes
aqi not available
aqi not available
11 
Markleeville
aqi not available
aqi not available
 
Mendocino County
aqi not available
aqi not available
 
Mono Lake
aqi not available
aqi not available
11 
Monterey Bay Area
        Carmel Valley
Good
aqi not available
 
        Davenport
Good
aqi not available
 
        Hollister
Good
aqi not available
 
        King City
Good
aqi not available
 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
aqi not available
 
        Pinnacles National Monument
Good
aqi not available
 
        Salinas
Good
aqi not available
23 
        San Lorenzo Valley
Good
aqi not available
 
        Santa Cruz
Good
aqi not available
39 
        Scotts Valley
Good
aqi not available
 
        Watsonville
Good
aqi not available
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
37 
Paradise
Unhealthy for Sensitive Groups
aqi not available
74 
Point Arena
aqi not available
aqi not available
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
39 
Quincy
aqi not available
aqi not available
33 
Red Bluff
aqi not available
aqi not available
34 
Redding
60
aqi not available
81 
Sacramento Area
        Arden Arcade-Del Paso Manor
93
100
13 
        Auburn
100
97
44 
        Colfax
100
97
35 
        Cool
100
100
40 
        Davis
51
49
30 
        Elk Grove
93
100
13 
        Folsom
93
100
34 
        Lincoln
100
97
 
        Natomas
93
100
 
        North Highlands
93
100
17 
        Placerville
100
100
80 
        Rio Vista
51
49
10 
        Roseville-Rocklin
100
97
 
        Sacramento
93
100
15 
        Sloughhouse
93
100
31 
        Vacaville
51
49
16 
        Woodland
51
49
38 
San Diego Area
        San Diego Coast
Good
Good
38 
        San Diego Foothills
Moderate
Moderate
44 
        San Diego Mesa and Inland Valley
Moderate
Moderate
67 
San Francisco Area
        Concord
58
Moderate
 
        Fairfield
58
Moderate
 
        Fremont
50
Moderate
 
        Livermore
58
Moderate
 
        Napa
55
Moderate
 
        Oakland
55
Moderate
 
        Redwood City
50
Moderate
 
        San Francisco
55
Moderate
 
        San Jose
54
Moderate
 
        San Rafael
55
Moderate
 
        Santa Rosa
55
Moderate
 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
93
aqi not available
35 
        Fresno
97
aqi not available
41 
        Hanford
100
aqi not available
 
        Madera
75
aqi not available
 
        Merced
100
aqi not available
59 
        Modesto
93
aqi not available
19 
        Stockton
62
aqi not available
26 
        Visalia
77
aqi not available
63 
San Luis Obispo County
        Atascadero
49
50
15 
        Carrizo Plains
54
57
13 
        Morro Bay
39
41
29 
        Nipomo
47
48
60 
        Paso Robles
48
49
22 
        Red Hills
53
56
37 
        San Luis Obispo
39
42
31 
Santa Barbara County
        Carpinteria
Good
Good
22 
        Gaviota Coast
Good
Good
32 
        Goleta
Good
Good
36 
        Lompoc
Good
Good
31 
        Paradise Road
Good
Good
22 
        Santa Barbara
Good
Good
31 
        Santa Maria
Good
Good
38 
        Santa Ynez
Good
Good
17 
Santa Rosa Rancheria
aqi not available
aqi not available
44 
Sequoia/Kings Canyon National Parks
44
aqi not available
41 
South Lake Tahoe
aqi not available
aqi not available
Tahoe City area
aqi not available
aqi not available
Truckee
aqi not available
aqi not available
25 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
30 
Ukiah
aqi not available
aqi not available
Ventura County Area
        Ojai
65
60
48 
        Oxnard
55
55
27 
        Piru
70
70
34 
        Simi Valley
85
80
15 
        Thousand Oaks
55
55
51 
Western Nevada County
75
65
54 
Willits
aqi not available
aqi not available
Willows
aqi not available
aqi not available
29 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
45
aqi not available
35 
Yreka
aqi not available
aqi not available
43 
Yuba City/Marysville
64
aqi not available
37 
Yucca Vly
76
54
 
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.