California
 
Data courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20160924_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.
 - 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 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: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action 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
Sat
Sep 24
Sun
Sep 25
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
19 
Chester
aqi not available
aqi not available
Chico
Good
Good
56 
Death Valley National Park
42 
42 
38 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
19 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
25 
Imperial Valley
49 
50 
43 
Joshua Tree National Park
aqi not available
aqi not available
38 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
37 
41 
42 
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
14 
Los Angeles Area
        Antelope Vly
63 
53 
33 
        Anza Vly
59 
66 
54 
        Banning
57 
67 
37 
        Barstow
42 
46 
38 
        Big Bear Lake
46 
50 
 
        C San Bernardino M
67 
67 
44 
        C San Bernardino-1
68 
63 
100 
        C San Bernardino-2
67 
55 
100 
        Capistrano Vly
61 
57 
87 
        Central Coastal
57 
57 
87 
        Central LA CO
61 
55 
80 
        Central Orange-1
59 
67 
49 
        Central Orange-2
59 
63 
49 
        Coachella Vly
67 
67 
39 
        E San Bernardino
67 
67 
61 
        E San Fernando Vly
59 
55 
71 
        E San Gabriel V-1
63 
59 
71 
        E San Gabriel V-2
61 
59 
71 
        East Riverside CO
46 
50 
39 
        Hemet/San Jacinto
61 
59 
77 
        Hesperia
46 
50 
41 
        Lake Elsinore
67 
67 
97 
        Metro Riverside CO
68 
67 
87 
        N Coastal Orange
57 
57 
49 
        NW Coastal LA
61 
61 
80 
        NW San Bernardino
68 
59 
100 
        Norco/Corona
66 
66 
84 
        North Orange CO
57 
67 
49 
        Perris Vly
66 
66 
77 
        Phelan
50 
51 
38 
        Pomona Walnut Vly
68 
66 
58 
        S Central LA CO
59 
53 
67 
        S San Gabriel Vly
59 
50 
46 
        SW Coastal LA
57 
61 
80 
        SW San Bernardino
67 
55 
100 
        Saddleback Vly
63 
67 
87 
        San Gabriel Mts
61 
53 
71 
        Santa Clarita Vly
59 
67 
46 
        South Coastal LA
61 
55 
54 
        Southeast LA CO
66 
55 
49 
        Temecula Vly
66 
63 
54 
        Trona
46 
50 
 
        Twentynine Palms
46 
46 
38 
        Victorville
46 
50 
38 
        W San Bernardino M
59 
50 
100 
        W San Fernando Vly
68 
57 
71 
        W San Gabriel Vly
67 
57 
64 
Mammoth Lakes
aqi not available
aqi not available
19 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
19 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
35 
        Davenport
Good
Good
 
        Hollister
Good
Good
41 
        King City
Moderate
Moderate
40 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Moderate
Moderate
34 
        Salinas
Good
Good
41 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
28 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
16 
Paradise
Good
Good
40 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
Quincy
aqi not available
aqi not available
10 
Red Bluff
aqi not available
aqi not available
 
Redding
40 
40 
36 
Sacramento Area
        Arden Arcade-Del Paso Manor
51 
93 
28 
        Auburn
54 
93 
41 
        Colfax
54 
93 
41 
        Cool
61 
97 
40 
        Davis
44 
51 
37 
        Elk Grove
51 
93 
40 
        Folsom
51 
93 
42 
        Lincoln
54 
93 
38 
        Natomas
51 
93 
39 
        North Highlands
51 
93 
34 
        Placerville
61 
97 
47 
        Rio Vista
44 
51 
        Roseville-Rocklin
54 
93 
41 
        Sacramento
51 
93 
36 
        Sloughhouse
51 
93 
40 
        Vacaville
44 
51 
40 
        Woodland
44 
51 
40 
San Diego Area
        San Diego Coast
Moderate
Moderate
108 
        San Diego Foothills
Moderate
Moderate
84 
        San Diego Mesa and Inland Valley
Moderate
Moderate
100 
San Francisco Area
        Concord
74 
104 
35 
        Fairfield
74 
104 
38 
        Fremont
63 
59 
26 
        Livermore
74 
104 
31 
        Napa
55 
54 
30 
        Oakland
59 
67 
38 
        Redwood City
63 
59 
16 
        San Francisco
59 
67 
19 
        San Jose
80 
108 
47 
        San Rafael
55 
54 
35 
        Santa Rosa
55 
54 
21 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
87 
100 
67 
        Fresno
84 
93 
77 
        Hanford
80 
61 
87 
        Madera
58 
67 
67 
        Merced
55 
64 
71 
        Modesto
54 
58 
49 
        Stockton
47 
51 
46 
        Visalia
84 
100 
69 
San Luis Obispo County
        Atascadero
41 
43 
38 
        Carrizo Plains
40 
42 
47 
        Morro Bay
38 
42 
31 
        Nipomo
45 
40 
65 
        Paso Robles
50 
49 
39 
        Red Hills
44 
49 
44 
        San Luis Obispo
40 
42 
37 
Santa Barbara County
        Carpinteria
Good
Good
42 
        Gaviota Coast
Good
Good
48 
        Goleta
Good
Good
49 
        Lompoc
Good
Good
38 
        Paradise Road
Good
Good
 
        Santa Barbara
Good
Good
26 
        Santa Maria
Good
Good
33 
        Santa Ynez
Good
Good
37 
Santa Rosa Rancheria
aqi not available
aqi not available
76 
Sequoia/Kings Canyon National Parks
48 
51 
51 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
17 
Truckee
aqi not available
aqi not available
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
50 
Ventura County Area
        Ojai
55 
55 
46 
        Oxnard
50 
55 
48 
        Piru
50 
55 
49 
        Simi Valley
55 
55 
71 
        Thousand Oaks
55 
60 
61 
Western Nevada County
70 
80 
45 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
45 
45 
85 
Yuba City/Marysville
Moderate
Moderate
32 
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.