California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170821_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
Mon
Aug 21
Tue
Aug 22
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
42 
Bishop Paiute Tribe
aqi not available
aqi not available
27 
Chester
aqi not available
aqi not available
62 
Chico
Moderate
Moderate
71 
Death Valley National Park
39 
35 
43 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
42 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
64 
Imperial Valley
aqi not available
aqi not available
44 
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
50 
51 
47 
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
31 
Los Angeles Area
        Antelope Vly
50 
67 
67 
        Anza Vly
67 
46 
67 
        Banning
100 
67 
61 
        Barstow
50 
46 
40 
        Big Bear Lake
67 
67 
 
        C San Bernardino M
161 
132 
58 
        C San Bernardino-1
100 
67 
100 
        C San Bernardino-2
132 
100 
100 
        Capistrano Vly
46 
42 
46 
        Central Coastal
55 
42 
46 
        Central LA CO
57 
53 
77 
        Central Orange-1
57 
42 
38 
        Central Orange-2
46 
50 
38 
        Coachella Vly
100 
67 
46 
        E San Bernardino
132 
100 
80 
        E San Fernando Vly
67 
53 
77 
        E San Gabriel V-1
100 
67 
97 
        E San Gabriel V-2
100 
67 
97 
        East Riverside CO
50 
46 
 
        Hemet/San Jacinto
67 
67 
67 
        Hesperia
50 
67 
49 
        Lake Elsinore
67 
100 
67 
        Metro Riverside CO
70 
67 
115 
        N Coastal Orange
55 
42 
41 
        NW Coastal LA
38 
46 
41 
        NW San Bernardino
132 
100 
100 
        Norco/Corona
67 
67 
115 
        North Orange CO
50 
46 
41 
        Perris Vly
100 
67 
67 
        Phelan
50 
50 
45 
        Pomona Walnut Vly
67 
59 
97 
        S Central LA CO
28 
33 
38 
        S San Gabriel Vly
46 
46 
 
        SW Coastal LA
42 
42 
41 
        SW San Bernardino
100 
67 
100 
        Saddleback Vly
46 
46 
46 
        San Gabriel Mts
67 
67 
97 
        Santa Clarita Vly
67 
100 
93 
        South Coastal LA
57 
46 
41 
        Southeast LA CO
61 
53 
38 
        Temecula Vly
55 
53 
67 
        Trona
50 
46 
43 
        Twentynine Palms
50 
67 
40 
        Victorville
50 
46 
45 
        W San Bernardino M
67 
100 
100 
        W San Fernando Vly
68 
63 
77 
        W San Gabriel Vly
55 
67 
56 
Mammoth Lakes
aqi not available
aqi not available
12 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
61 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
33 
        Davenport
Good
Good
 
        Hollister
Good
Good
29 
        King City
Good
Good
41 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
33 
        Salinas
Good
Good
41 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
29 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
31 
Paradise
Moderate
Moderate
61 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
45 
Quincy
aqi not available
aqi not available
86 
Red Bluff
aqi not available
aqi not available
 
Redding
90 
aqi not available
105 
Sacramento Area
        Arden Arcade-Del Paso Manor
48 
51 
63 
        Auburn
50 
61 
 
        Colfax
50 
61 
65 
        Cool
49 
51 
42 
        Davis
46 
46 
54 
        Elk Grove
48 
51 
50 
        Folsom
48 
51 
53 
        Lincoln
50 
61 
59 
        Natomas
48 
51 
 
        North Highlands
48 
51 
40 
        Placerville
49 
51 
45 
        Rio Vista
46 
46 
40 
        Roseville-Rocklin
50 
61 
39 
        Sacramento
48 
51 
41 
        Sloughhouse
48 
51 
56 
        Vacaville
46 
46 
38 
        Woodland
46 
46 
65 
San Diego Area
        San Diego Coast
Good
Good
55 
        San Diego Foothills
Good
Good
74 
        San Diego Mesa and Inland Valley
Good
Good
42 
San Francisco Area
        Concord
63 
55 
49 
        Fairfield
63 
55 
32 
        Fremont
57 
53 
51 
        Livermore
63 
55 
37 
        Napa
61 
55 
51 
        Oakland
63 
57 
38 
        Redwood City
57 
53 
51 
        San Francisco
63 
57 
23 
        San Jose
61 
55 
48 
        San Rafael
61 
55 
43 
        Santa Rosa
61 
55 
50 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
84 
100 
84 
        Fresno
80 
93 
45 
        Hanford
64 
77 
75 
        Madera
62 
57 
44 
        Merced
64 
59 
64 
        Modesto
59 
50 
50 
        Stockton
57 
42 
40 
        Visalia
59 
90 
136 
San Luis Obispo County
        Atascadero
43 
41 
33 
        Carrizo Plains
49 
48 
44 
        Morro Bay
30 
30 
33 
        Nipomo
49 
48 
49 
        Paso Robles
43 
42 
36 
        Red Hills
47 
48 
41 
        San Luis Obispo
43 
42 
48 
Santa Barbara County
        Carpinteria
Good
Good
31 
        Gaviota Coast
Good
Good
35 
        Goleta
Good
Good
54 
        Lompoc
Good
Good
34 
        Paradise Road
Good
Good
34 
        Santa Barbara
Good
Good
37 
        Santa Maria
Good
Good
40 
        Santa Ynez
Good
Good
37 
Santa Rosa Rancheria
aqi not available
aqi not available
80 
Sequoia/Kings Canyon National Parks
49 
67 
101 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
47 
Truckee
aqi not available
aqi not available
63 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
67 
Ventura County Area
        Ojai
50 
50 
42 
        Oxnard
40 
40 
38 
        Piru
50 
50 
53 
        Simi Valley
50 
50 
55 
        Thousand Oaks
50 
45 
42 
Western Nevada County
90 
90 
54 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
40 
37 
130 
Yuba City/Marysville
Moderate
Moderate
47 
Yucca Vly
67 
46 
 
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.