California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170823_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
Wed
Aug 23
Thu
Aug 24
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
30 
Chester
aqi not available
aqi not available
58 
Chico
Moderate
aqi not available
74 
Death Valley National Park
aqi not available
aqi not available
40 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
27 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
aqi not available
66 
Imperial Valley
aqi not available
aqi not available
34 
Joshua Tree National Park
aqi not available
aqi not available
47 
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
32 
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
40 
Los Angeles Area
        Antelope Vly
67 
aqi not available
48 
        Anza Vly
46 
aqi not available
57 
        Banning
57 
aqi not available
70 
        Barstow
46 
aqi not available
        Big Bear Lake
67 
aqi not available
 
        C San Bernardino M
100 
aqi not available
34 
        C San Bernardino-1
68 
aqi not available
59 
        C San Bernardino-2
72 
aqi not available
59 
        Capistrano Vly
38 
aqi not available
27 
        Central Coastal
42 
aqi not available
27 
        Central LA CO
61 
aqi not available
62 
        Central Orange-1
37 
aqi not available
43 
        Central Orange-2
38 
aqi not available
43 
        Coachella Vly
67 
aqi not available
48 
        E San Bernardino
68 
aqi not available
11 
        E San Fernando Vly
50 
aqi not available
61 
        E San Gabriel V-1
68 
aqi not available
31 
        E San Gabriel V-2
68 
aqi not available
31 
        East Riverside CO
46 
aqi not available
 
        Hemet/San Jacinto
67 
aqi not available
54 
        Hesperia
67 
aqi not available
28 
        Lake Elsinore
66 
aqi not available
57 
        Metro Riverside CO
72 
aqi not available
58 
        N Coastal Orange
42 
aqi not available
54 
        NW Coastal LA
46 
aqi not available
54 
        NW San Bernardino
70 
aqi not available
59 
        Norco/Corona
67 
aqi not available
58 
        North Orange CO
46 
aqi not available
43 
        Perris Vly
66 
aqi not available
54 
        Phelan
46 
aqi not available
40 
        Pomona Walnut Vly
68 
aqi not available
14 
        S Central LA CO
38 
aqi not available
24 
        S San Gabriel Vly
46 
aqi not available
 
        SW Coastal LA
46 
aqi not available
54 
        SW San Bernardino
72 
aqi not available
59 
        Saddleback Vly
46 
aqi not available
43 
        San Gabriel Mts
67 
aqi not available
55 
        Santa Clarita Vly
100 
aqi not available
55 
        South Coastal LA
50 
aqi not available
54 
        Southeast LA CO
42 
aqi not available
43 
        Temecula Vly
50 
aqi not available
57 
        Trona
50 
aqi not available
43 
        Twentynine Palms
67 
aqi not available
        Victorville
46 
aqi not available
32 
        W San Bernardino M
46 
aqi not available
59 
        W San Fernando Vly
66 
aqi not available
61 
        W San Gabriel Vly
63 
aqi not available
62 
Mammoth Lakes
aqi not available
aqi not available
16 
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
38 
        Davenport
Good
Good
 
        Hollister
Good
Good
27 
        King City
Good
Good
40 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
14 
        Salinas
Good
Good
46 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
46 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
40 
Paradise
Moderate
aqi not available
58 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
18 
Quincy
aqi not available
aqi not available
21 
Red Bluff
aqi not available
aqi not available
 
Redding
aqi not available
aqi not available
93 
Sacramento Area
        Arden Arcade-Del Paso Manor
61 
67 
71 
        Auburn
77 
80 
60 
        Colfax
77 
80 
36 
        Cool
74 
77 
32 
        Davis
50 
51 
68 
        Elk Grove
61 
67 
55 
        Folsom
61 
67 
47 
        Lincoln
77 
80 
54 
        Natomas
61 
67 
 
        North Highlands
61 
67 
23 
        Placerville
74 
77 
32 
        Rio Vista
50 
51 
59 
        Roseville-Rocklin
77 
80 
34 
        Sacramento
61 
67 
54 
        Sloughhouse
61 
67 
65 
        Vacaville
50 
51 
54 
        Woodland
50 
51 
73 
San Diego Area
        San Diego Coast
Good
aqi not available
55 
        San Diego Foothills
Good
aqi not available
36 
        San Diego Mesa and Inland Valley
Good
aqi not available
62 
San Francisco Area
        Concord
55 
Moderate
69 
        Fairfield
55 
Moderate
32 
        Fremont
50 
Good
38 
        Livermore
55 
Moderate
56 
        Napa
57 
Moderate
51 
        Oakland
57 
Moderate
76 
        Redwood City
50 
Good
38 
        San Francisco
57 
Moderate
59 
        San Jose
55 
Good
60 
        San Rafael
57 
Moderate
58 
        Santa Rosa
57 
Moderate
24 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
84 
Moderate
67 
        Fresno
64 
Moderate
38 
        Hanford
67 
Moderate
70 
        Madera
50 
Good
18 
        Merced
48 
Good
38 
        Modesto
47 
Good
43 
        Stockton
44 
Good
52 
        Visalia
64 
Moderate
23 
San Luis Obispo County
        Atascadero
42 
33 
29 
        Carrizo Plains
50 
38 
27 
        Morro Bay
31 
28 
29 
        Nipomo
50 
56 
47 
        Paso Robles
43 
33 
29 
        Red Hills
50 
48 
39 
        San Luis Obispo
44 
36 
50 
Santa Barbara County
        Carpinteria
Good
aqi not available
        Gaviota Coast
Good
aqi not available
20 
        Goleta
Good
aqi not available
35 
        Lompoc
Good
aqi not available
33 
        Paradise Road
Good
aqi not available
        Santa Barbara
Good
aqi not available
26 
        Santa Maria
Good
aqi not available
48 
        Santa Ynez
Good
aqi not available
22 
Santa Rosa Rancheria
aqi not available
aqi not available
57 
Sequoia/Kings Canyon National Parks
aqi not available
aqi not available
57 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
31 
Truckee
aqi not available
aqi not available
60 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
33 
Ventura County Area
        Ojai
50 
55 
39 
        Oxnard
40 
50 
55 
        Piru
55 
55 
43 
        Simi Valley
55 
55 
53 
        Thousand Oaks
50 
55 
39 
Western Nevada County
90 
95 
30 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
aqi not available
aqi not available
44 
Yuba City/Marysville
Moderate
aqi not available
54 
Yucca Vly
67 
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.