California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20161202_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
Fri
Dec 2
Sat
Dec 3
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
12 
Bishop Paiute Tribe
aqi not available
aqi not available
12 
Chester
aqi not available
aqi not available
41 
Chico
Moderate
Moderate
39 
Death Valley National Park
35 
aqi not available
38 
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
98 
93 
89 
Joshua Tree National Park
aqi not available
aqi not available
42 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
33 
aqi not available
39 
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
17 
Los Angeles Area
        Antelope Vly
38 
33 
31 
        Anza Vly
28 
38 
38 
        Banning
33 
37 
42 
        Barstow
29 
28 
68 
        Big Bear Lake
29 
28 
 
        C San Bernardino M
33 
37 
39 
        C San Bernardino-1
55 
46 
41 
        C San Bernardino-2
53 
48 
41 
        Capistrano Vly
38 
38 
41 
        Central Coastal
54 
38 
42 
        Central LA CO
46 
59 
44 
        Central Orange-1
53 
41 
34 
        Central Orange-2
56 
37 
42 
        Coachella Vly
60 
63 
30 
        E San Bernardino
33 
42 
41 
        E San Fernando Vly
29 
46 
37 
        E San Gabriel V-1
38 
38 
41 
        E San Gabriel V-2
31 
42 
41 
        East Riverside CO
46 
38 
38 
        Hemet/San Jacinto
50 
42 
38 
        Hesperia
46 
38 
46 
        Lake Elsinore
37 
46 
38 
        Metro Riverside CO
71 
56 
65 
        N Coastal Orange
53 
36 
44 
        NW Coastal LA
33 
37 
44 
        NW San Bernardino
42 
50 
41 
        Norco/Corona
38 
50 
48 
        North Orange CO
55 
44 
34 
        Perris Vly
67 
50 
35 
        Phelan
50 
42 
34 
        Pomona Walnut Vly
32 
46 
34 
        S Central LA CO
50 
46 
29 
        S San Gabriel Vly
50 
46 
 
        SW Coastal LA
42 
38 
44 
        SW San Bernardino
57 
50 
41 
        Saddleback Vly
55 
38 
41 
        San Gabriel Mts
50 
46 
42 
        Santa Clarita Vly
66 
46 
39 
        South Coastal LA
70 
55 
44 
        Southeast LA CO
38 
57 
34 
        Temecula Vly
37 
33 
38 
        Trona
42 
38 
41 
        Twentynine Palms
29 
28 
68 
        Victorville
46 
38 
33 
        W San Bernardino M
42 
46 
41 
        W San Fernando Vly
29 
46 
37 
        W San Gabriel Vly
38 
38 
42 
Mammoth Lakes
aqi not available
aqi not available
 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
53 
Mono Lake
aqi not available
aqi not available
 
Monterey Bay Area
        Carmel Valley
Good
Good
14 
        Davenport
Good
Good
 
        Hollister
Good
Good
16 
        King City
Good
Good
20 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
33 
        Salinas
Good
Good
44 
        San Lorenzo Valley
Moderate
Moderate
 
        Santa Cruz
Good
Good
31 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
17 
Paradise
Good
Good
39 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
17 
Quincy
aqi not available
aqi not available
56 
Red Bluff
aqi not available
aqi not available
 
Redding
55 
60 
38 
Sacramento Area
        Arden Arcade-Del Paso Manor
42 
91 
22 
        Auburn
29 
61 
28 
        Colfax
29 
61 
32 
        Cool
aqi not available
aqi not available
 
        Davis
38 
66 
29 
        Elk Grove
42 
91 
25 
        Folsom
42 
91 
31 
        Lincoln
29 
61 
23 
        Natomas
42 
91 
32 
        North Highlands
42 
91 
24 
        Placerville
aqi not available
aqi not available
40 
        Rio Vista
38 
66 
23 
        Roseville-Rocklin
29 
61 
26 
        Sacramento
42 
91 
22 
        Sloughhouse
42 
91 
25 
        Vacaville
38 
66 
57 
        Woodland
38 
66 
27 
San Diego Area
        San Diego Coast
Good
aqi not available
39 
        San Diego Foothills
Good
aqi not available
30 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
61 
San Francisco Area
        Concord
46 
59 
31 
        Fairfield
46 
59 
33 
        Fremont
38 
59 
32 
        Livermore
46 
59 
31 
        Napa
55 
68 
33 
        Oakland
53 
66 
27 
        Redwood City
38 
59 
27 
        San Francisco
53 
66 
35 
        San Jose
46 
63 
32 
        San Rafael
55 
68 
30 
        Santa Rosa
55 
68 
28 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
80 
Moderate
52 
        Fresno
68 
Moderate
76 
        Hanford
62 
Moderate
59 
        Madera
62 
Moderate
        Merced
29 
Good
51 
        Modesto
38 
Good
27 
        Stockton
33 
Good
27 
        Visalia
76 
Moderate
89 
San Luis Obispo County
        Atascadero
40 
48 
44 
        Carrizo Plains
33 
36 
27 
        Morro Bay
29 
30 
21 
        Nipomo
35 
36 
26 
        Paso Robles
41 
49 
44 
        Red Hills
33 
33 
26 
        San Luis Obispo
31 
40 
40 
Santa Barbara County
        Carpinteria
Good
aqi not available
24 
        Gaviota Coast
Good
aqi not available
32 
        Goleta
Good
aqi not available
31 
        Lompoc
Good
aqi not available
27 
        Paradise Road
Good
aqi not available
25 
        Santa Barbara
Good
aqi not available
28 
        Santa Maria
Good
aqi not available
28 
        Santa Ynez
Good
aqi not available
23 
Santa Rosa Rancheria
aqi not available
aqi not available
19 
Sequoia/Kings Canyon National Parks
42 
aqi not available
14 
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
42 
Tuolumne City
aqi not available
aqi not available
13 
Tuolumne County
aqi not available
aqi not available
 
Ventura County Area
        Ojai
35 
35 
31 
        Oxnard
40 
40 
36 
        Piru
35 
35 
36 
        Simi Valley
35 
35 
36 
        Thousand Oaks
35 
35 
36 
Western Nevada County
36 
36 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
38 
aqi not available
53 
Yuba City/Marysville
Good
Moderate
23 
Yucca Vly
46 
38 
 
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.
 
Data and Forecasts courtesy of: