California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170117_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
Tue
Jan 17
Wed
Jan 18
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
32 
Bishop Paiute Tribe
aqi not available
aqi not available
32 
Chester
aqi not available
aqi not available
 
Chico
Moderate
aqi not available
159 
Death Valley National Park
34 
aqi not available
39 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
40 
Greeley Hill
aqi not available
aqi not available
20 
Gridley
Moderate
aqi not available
 
Imperial Valley
46 
55 
94 
Joshua Tree National Park
aqi not available
aqi not available
37 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
36 
aqi not available
46 
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
14 
Los Angeles Area
        Antelope Vly
42 
aqi not available
40 
        Anza Vly
38 
aqi not available
44 
        Banning
53 
aqi not available
13 
        Barstow
37 
aqi not available
        Big Bear Lake
37 
aqi not available
 
        C San Bernardino M
46 
aqi not available
39 
        C San Bernardino-1
50 
aqi not available
45 
        C San Bernardino-2
50 
aqi not available
45 
        Capistrano Vly
50 
aqi not available
15 
        Central Coastal
46 
aqi not available
15 
        Central LA CO
55 
aqi not available
76 
        Central Orange-1
50 
aqi not available
72 
        Central Orange-2
50 
aqi not available
72 
        Coachella Vly
46 
aqi not available
28 
        E San Bernardino
57 
aqi not available
18 
        E San Fernando Vly
38 
aqi not available
76 
        E San Gabriel V-1
42 
aqi not available
32 
        E San Gabriel V-2
42 
aqi not available
32 
        East Riverside CO
28 
aqi not available
35 
        Hemet/San Jacinto
42 
aqi not available
44 
        Hesperia
37 
aqi not available
17 
        Lake Elsinore
46 
aqi not available
19 
        Metro Riverside CO
55 
aqi not available
39 
        N Coastal Orange
50 
aqi not available
59 
        NW Coastal LA
50 
aqi not available
59 
        NW San Bernardino
53 
aqi not available
45 
        Norco/Corona
55 
aqi not available
72 
        North Orange CO
50 
aqi not available
72 
        Perris Vly
55 
aqi not available
        Phelan
37 
aqi not available
38 
        Pomona Walnut Vly
55 
aqi not available
        S Central LA CO
46 
aqi not available
        S San Gabriel Vly
46 
aqi not available
 
        SW Coastal LA
46 
aqi not available
59 
        SW San Bernardino
61 
aqi not available
45 
        Saddleback Vly
50 
aqi not available
72 
        San Gabriel Mts
29 
aqi not available
32 
        Santa Clarita Vly
37 
aqi not available
22 
        South Coastal LA
38 
aqi not available
59 
        Southeast LA CO
42 
aqi not available
72 
        Temecula Vly
46 
aqi not available
44 
        Trona
28 
aqi not available
17 
        Twentynine Palms
37 
aqi not available
        Victorville
28 
aqi not available
 
        W San Bernardino M
37 
aqi not available
45 
        W San Fernando Vly
50 
aqi not available
76 
        W San Gabriel Vly
38 
aqi not available
68 
Mammoth Lakes
aqi not available
aqi not available
40 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
36 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
22 
        Davenport
Good
Good
 
        Hollister
Good
Good
        King City
Good
Good
27 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
        Salinas
Good
Good
56 
        San Lorenzo Valley
Moderate
Moderate
 
        Santa Cruz
Good
Good
56 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
Moderate
aqi not available
 
Owens Lake
aqi not available
aqi not available
14 
Paradise
Good
aqi not available
24 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
62 
Quincy
aqi not available
aqi not available
118 
Red Bluff
aqi not available
aqi not available
 
Redding
60 
aqi not available
113 
Sacramento Area
        Arden Arcade-Del Paso Manor
107 
93 
72 
        Auburn
76 
53 
 
        Colfax
76 
53 
 
        Cool
aqi not available
aqi not available
 
        Davis
80 
76 
67 
        Elk Grove
107 
93 
47 
        Folsom
107 
93 
46 
        Lincoln
76 
53 
 
        Natomas
107 
93 
        North Highlands
107 
93 
 
        Placerville
aqi not available
aqi not available
12 
        Rio Vista
80 
76 
 
        Roseville-Rocklin
76 
53 
58 
        Sacramento
107 
93 
72 
        Sloughhouse
107 
93 
28 
        Vacaville
80 
76 
 
        Woodland
80 
76 
 
San Diego Area
        San Diego Coast
Good
aqi not available
52 
        San Diego Foothills
Good
aqi not available
30 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
63 
San Francisco Area
        Concord
102 
Moderate
67 
        Fairfield
102 
Moderate
        Fremont
80 
Good
54 
        Livermore
102 
Moderate
88 
        Napa
102 
Moderate
92 
        Oakland
95 
Moderate
87 
        Redwood City
80 
Good
54 
        San Francisco
95 
Moderate
77 
        San Jose
91 
Moderate
68 
        San Rafael
102 
Moderate
61 
        Santa Rosa
102 
Moderate
55 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
62 
Moderate
69 
        Fresno
66 
Moderate
        Hanford
66 
Moderate
79 
        Madera
59 
Moderate
        Merced
62 
Moderate
53 
        Modesto
76 
Moderate
79 
        Stockton
72 
Moderate
58 
        Visalia
64 
Moderate
76 
San Luis Obispo County
        Atascadero
46 
47 
62 
        Carrizo Plains
35 
35 
        Morro Bay
35 
35 
12 
        Nipomo
37 
37 
62 
        Paso Robles
46 
47 
62 
        Red Hills
35 
35 
30 
        San Luis Obispo
39 
44 
38 
Santa Barbara County
        Carpinteria
Good
aqi not available
15 
        Gaviota Coast
Good
aqi not available
31 
        Goleta
Good
aqi not available
24 
        Lompoc
Good
aqi not available
52 
        Paradise Road
Good
aqi not available
 
        Santa Barbara
Good
aqi not available
        Santa Maria
Good
aqi not available
23 
        Santa Ynez
Good
aqi not available
11 
Santa Rosa Rancheria
aqi not available
aqi not available
29 
Sequoia/Kings Canyon National Parks
39 
aqi not available
23 
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
 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
 
Ventura County Area
        Ojai
40 
40 
34 
        Oxnard
40 
40 
26 
        Piru
40 
40 
28 
        Simi Valley
40 
40 
31 
        Thousand Oaks
40 
40 
35 
Western Nevada County
38 
38 
 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
39 
aqi not available
74 
Yuba City/Marysville
Good
aqi not available
76 
Yucca Vly
37 
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.