California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20161208_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: 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
Dec 8
Fri
Dec 9
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
10 
Bishop Paiute Tribe
aqi not available
aqi not available
10 
Chester
aqi not available
aqi not available
 
Chico
Good
Good
33 
Death Valley National Park
33 
34 
33 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
 
Imperial Valley
59 
55 
39 
Joshua Tree National Park
aqi not available
aqi not available
43 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
35 
35 
30 
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
11 
Los Angeles Area
        Antelope Vly
46 
50 
31 
        Anza Vly
68 
57 
63 
        Banning
42 
57 
41 
        Barstow
29 
37 
23 
        Big Bear Lake
29 
29 
 
        C San Bernardino M
37 
38 
60 
        C San Bernardino-1
66 
78 
39 
        C San Bernardino-2
70 
68 
39 
        Capistrano Vly
68 
57 
45 
        Central Coastal
57 
55 
45 
        Central LA CO
63 
53 
52 
        Central Orange-1
72 
55 
71 
        Central Orange-2
63 
57 
71 
        Coachella Vly
46 
42 
24 
        E San Bernardino
55 
66 
42 
        E San Fernando Vly
55 
59 
52 
        E San Gabriel V-1
68 
59 
28 
        E San Gabriel V-2
66 
57 
28 
        East Riverside CO
50 
50 
40 
        Hemet/San Jacinto
53 
42 
63 
        Hesperia
50 
50 
31 
        Lake Elsinore
76 
66 
66 
        Metro Riverside CO
82 
93 
82 
        N Coastal Orange
57 
55 
51 
        NW Coastal LA
61 
53 
51 
        NW San Bernardino
70 
66 
36 
        Norco/Corona
70 
89 
77 
        North Orange CO
72 
61 
71 
        Perris Vly
72 
91 
37 
        Phelan
50 
50 
27 
        Pomona Walnut Vly
72 
63 
28 
        S Central LA CO
53 
46 
36 
        S San Gabriel Vly
53 
46 
 
        SW Coastal LA
63 
59 
51 
        SW San Bernardino
70 
66 
36 
        Saddleback Vly
63 
53 
71 
        San Gabriel Mts
63 
55 
37 
        Santa Clarita Vly
53 
33 
37 
        South Coastal LA
61 
55 
51 
        Southeast LA CO
70 
59 
71 
        Temecula Vly
70 
59 
63 
        Trona
46 
50 
34 
        Twentynine Palms
29 
37 
23 
        Victorville
50 
50 
30 
        W San Bernardino M
50 
50 
60 
        W San Fernando Vly
55 
50 
52 
        W San Gabriel Vly
63 
53 
50 
Mammoth Lakes
aqi not available
aqi not available
 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
17 
Mono Lake
aqi not available
aqi not available
 
Monterey Bay Area
        Carmel Valley
Good
Good
21 
        Davenport
Good
Good
 
        Hollister
Good
Good
13 
        King City
Good
Good
26 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
25 
        Salinas
Good
Good
26 
        San Lorenzo Valley
Moderate
Moderate
 
        Santa Cruz
Good
Good
19 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
19 
Paradise
Good
Good
27 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
28 
Quincy
aqi not available
aqi not available
33 
Red Bluff
aqi not available
aqi not available
 
Redding
75 
70 
76 
Sacramento Area
        Arden Arcade-Del Paso Manor
80 
42 
40 
        Auburn
50 
29 
22 
        Colfax
50 
29 
21 
        Cool
aqi not available
aqi not available
 
        Davis
57 
38 
19 
        Elk Grove
80 
42 
34 
        Folsom
80 
42 
25 
        Lincoln
50 
29 
21 
        Natomas
80 
42 
16 
        North Highlands
80 
42 
13 
        Placerville
aqi not available
aqi not available
27 
        Rio Vista
57 
38 
75 
        Roseville-Rocklin
50 
29 
27 
        Sacramento
80 
42 
40 
        Sloughhouse
80 
42 
29 
        Vacaville
57 
38 
        Woodland
57 
38 
23 
San Diego Area
        San Diego Coast
Moderate
Moderate
54 
        San Diego Foothills
Good
Good
44 
        San Diego Mesa and Inland Valley
Moderate
Moderate
68 
San Francisco Area
        Concord
46 
42 
60 
        Fairfield
46 
42 
23 
        Fremont
38 
38 
23 
        Livermore
46 
42 
21 
        Napa
50 
55 
44 
        Oakland
50 
53 
24 
        Redwood City
38 
38 
17 
        San Francisco
50 
53 
28 
        San Jose
46 
42 
17 
        San Rafael
50 
55 
40 
        Santa Rosa
50 
55 
13 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
95 
89 
49 
        Fresno
64 
64 
27 
        Hanford
74 
80 
48 
        Madera
59 
57 
27 
        Merced
50 
55 
31 
        Modesto
42 
57 
46 
        Stockton
25 
53 
62 
        Visalia
80 
70 
29 
San Luis Obispo County
        Atascadero
30 
39 
24 
        Carrizo Plains
31 
32 
29 
        Morro Bay
25 
28 
24 
        Nipomo
32 
43 
27 
        Paso Robles
30 
38 
26 
        Red Hills
33 
34 
28 
        San Luis Obispo
33 
37 
24 
Santa Barbara County
        Carpinteria
Good
Good
27 
        Gaviota Coast
Good
Good
33 
        Goleta
Good
Good
30 
        Lompoc
Good
Good
32 
        Paradise Road
Good
Good
31 
        Santa Barbara
Good
Good
32 
        Santa Maria
Good
Good
24 
        Santa Ynez
Good
Good
30 
Santa Rosa Rancheria
aqi not available
aqi not available
17 
Sequoia/Kings Canyon National Parks
36 
36 
21 
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
19 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
 
Ventura County Area
        Ojai
50 
50 
37 
        Oxnard
50 
50 
31 
        Piru
50 
50 
39 
        Simi Valley
45 
45 
39 
        Thousand Oaks
45 
45 
36 
Western Nevada County
33 
33 
29 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
37 
37 
26 
Yuba City/Marysville
Moderate
Moderate
35 
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.