California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170817_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
Aug 17
Fri
Aug 18
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
30 
Bishop Paiute Tribe
aqi not available
aqi not available
19 
Chester
aqi not available
aqi not available
56 
Chico
Moderate
aqi not available
60 
Death Valley National Park
aqi not available
aqi not available
46 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
30 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
aqi not available
67 
Imperial Valley
aqi not available
aqi not available
48 
Joshua Tree National Park
aqi not available
aqi not available
64 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
aqi not available
aqi not available
25 
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
37 
Los Angeles Area
        Antelope Vly
67 
aqi not available
47 
        Anza Vly
46 
aqi not available
57 
        Banning
100 
aqi not available
37 
        Barstow
46 
aqi not available
44 
        Big Bear Lake
100 
aqi not available
 
        C San Bernardino M
132 
aqi not available
71 
        C San Bernardino-1
100 
aqi not available
63 
        C San Bernardino-2
100 
aqi not available
63 
        Capistrano Vly
42 
aqi not available
21 
        Central Coastal
42 
aqi not available
21 
        Central LA CO
46 
aqi not available
60 
        Central Orange-1
37 
aqi not available
40 
        Central Orange-2
46 
aqi not available
40 
        Coachella Vly
100 
aqi not available
51 
        E San Bernardino
100 
aqi not available
20 
        E San Fernando Vly
50 
aqi not available
60 
        E San Gabriel V-1
67 
aqi not available
33 
        E San Gabriel V-2
67 
aqi not available
33 
        East Riverside CO
50 
aqi not available
 
        Hemet/San Jacinto
67 
aqi not available
31 
        Hesperia
67 
aqi not available
46 
        Lake Elsinore
100 
aqi not available
57 
        Metro Riverside CO
132 
aqi not available
53 
        N Coastal Orange
38 
aqi not available
42 
        NW Coastal LA
46 
aqi not available
42 
        NW San Bernardino
100 
aqi not available
63 
        Norco/Corona
67 
aqi not available
53 
        North Orange CO
46 
aqi not available
40 
        Perris Vly
100 
aqi not available
31 
        Phelan
67 
aqi not available
77 
        Pomona Walnut Vly
55 
aqi not available
19 
        S Central LA CO
46 
aqi not available
27 
        S San Gabriel Vly
46 
aqi not available
 
        SW Coastal LA
38 
aqi not available
42 
        SW San Bernardino
67 
aqi not available
63 
        Saddleback Vly
42 
aqi not available
40 
        San Gabriel Mts
99 
aqi not available
56 
        Santa Clarita Vly
100 
aqi not available
56 
        South Coastal LA
38 
aqi not available
42 
        Southeast LA CO
50 
aqi not available
40 
        Temecula Vly
50 
aqi not available
57 
        Trona
50 
aqi not available
49 
        Twentynine Palms
67 
aqi not available
44 
        Victorville
50 
aqi not available
51 
        W San Bernardino M
100 
aqi not available
71 
        W San Fernando Vly
46 
aqi not available
60 
        W San Gabriel Vly
67 
aqi not available
60 
Mammoth Lakes
aqi not available
aqi not available
19 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
28 
Mono Lake
aqi not available
aqi not available
13 
Monterey Bay Area
        Carmel Valley
aqi not available
aqi not available
27 
        Davenport
aqi not available
aqi not available
 
        Hollister
aqi not available
aqi not available
19 
        King City
aqi not available
aqi not available
28 
        Marina/Seaside
aqi not available
aqi not available
 
        Monterey Peninsula
aqi not available
aqi not available
 
        Pinnacles National Monument
aqi not available
aqi not available
20 
        Salinas
aqi not available
aqi not available
28 
        San Lorenzo Valley
aqi not available
aqi not available
 
        Santa Cruz
aqi not available
aqi not available
27 
        Scotts Valley
aqi not available
aqi not available
 
        Watsonville
aqi not available
aqi not available
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
37 
Paradise
Good
aqi not available
80 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
50 
Quincy
aqi not available
aqi not available
57 
Red Bluff
aqi not available
aqi not available
 
Redding
88 
aqi not available
63 
Sacramento Area
        Arden Arcade-Del Paso Manor
100 
105 
58 
        Auburn
100 
108 
58 
        Colfax
100 
108 
61 
        Cool
100 
105 
 
        Davis
58 
71 
55 
        Elk Grove
100 
105 
19 
        Folsom
100 
105 
54 
        Lincoln
100 
108 
54 
        Natomas
100 
105 
 
        North Highlands
100 
105 
21 
        Placerville
100 
105 
67 
        Rio Vista
58 
71 
45 
        Roseville-Rocklin
100 
108 
43 
        Sacramento
100 
105 
43 
        Sloughhouse
100 
105 
56 
        Vacaville
58 
71 
32 
        Woodland
58 
71 
62 
San Diego Area
        San Diego Coast
Good
aqi not available
51 
        San Diego Foothills
Moderate
aqi not available
27 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
22 
San Francisco Area
        Concord
55 
Moderate
53 
        Fairfield
55 
Moderate
23 
        Fremont
42 
Good
23 
        Livermore
55 
Moderate
40 
        Napa
55 
Moderate
54 
        Oakland
57 
Moderate
44 
        Redwood City
42 
Good
23 
        San Francisco
57 
Moderate
36 
        San Jose
50 
Moderate
35 
        San Rafael
55 
Moderate
52 
        Santa Rosa
55 
Moderate
48 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
80 
Moderate
60 
        Fresno
93 
Moderate
31 
        Hanford
84 
Moderate
62 
        Madera
77 
Moderate
20 
        Merced
70 
Moderate
55 
        Modesto
61 
Moderate
54 
        Stockton
57 
Moderate
41 
        Visalia
97 
Moderate
54 
San Luis Obispo County
        Atascadero
41 
45 
30 
        Carrizo Plains
38 
45 
28 
        Morro Bay
29 
28 
15 
        Nipomo
49 
49 
49 
        Paso Robles
42 
45 
30 
        Red Hills
45 
48 
28 
        San Luis Obispo
41 
42 
41 
Santa Barbara County
        Carpinteria
Good
aqi not available
11 
        Gaviota Coast
Good
aqi not available
33 
        Goleta
Good
aqi not available
36 
        Lompoc
Good
aqi not available
39 
        Paradise Road
Good
aqi not available
23 
        Santa Barbara
Good
aqi not available
18 
        Santa Maria
Good
aqi not available
33 
        Santa Ynez
Good
aqi not available
21 
Santa Rosa Rancheria
aqi not available
aqi not available
86 
Sequoia/Kings Canyon National Parks
aqi not available
aqi not available
76 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
29 
Truckee
aqi not available
aqi not available
62 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
50 
Ventura County Area
        Ojai
40 
55 
36 
        Oxnard
45 
50 
35 
        Piru
45 
55 
40 
        Simi Valley
45 
55 
48 
        Thousand Oaks
40 
55 
32 
Western Nevada County
aqi not available
aqi not available
105 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
aqi not available
aqi not available
84 
Yuba City/Marysville
Moderate
aqi not available
61 
Yucca Vly
50 
aqi not available
 
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.