California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170329_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
Mar 29
Thu
Mar 30
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
35 
Bishop Paiute Tribe
aqi not available
aqi not available
35 
Chester
aqi not available
aqi not available
 
Chico
Good
Good
35 
Death Valley National Park
37 
41 
41 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
23 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
37 
Imperial Valley
51 
73 
50 
Joshua Tree National Park
aqi not available
aqi not available
44 
La Grange
aqi not available
aqi not available
54 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
35 
38 
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
 
Los Angeles Area
        Antelope Vly
46 
46 
43 
        Anza Vly
63 
46 
77 
        Banning
67 
67 
50 
        Barstow
46 
46 
40 
        Big Bear Lake
46 
46 
 
        C San Bernardino M
100 
46 
48 
        C San Bernardino-1
59 
50 
90 
        C San Bernardino-2
67 
50 
90 
        Capistrano Vly
50 
37 
 
        Central Coastal
46 
37 
 
        Central LA CO
59 
50 
67 
        Central Orange-1
57 
33 
58 
        Central Orange-2
46 
33 
58 
        Coachella Vly
46 
50 
58 
        E San Bernardino
67 
50 
 
        E San Fernando Vly
50 
37 
67 
        E San Gabriel V-1
67 
46 
71 
        E San Gabriel V-2
67 
46 
71 
        East Riverside CO
38 
37 
49 
        Hemet/San Jacinto
50 
46 
77 
        Hesperia
46 
46 
46 
        Lake Elsinore
67 
46 
90 
        Metro Riverside CO
68 
46 
100 
        N Coastal Orange
46 
29 
44 
        NW Coastal LA
55 
42 
54 
        NW San Bernardino
67 
50 
90 
        Norco/Corona
57 
46 
100 
        North Orange CO
61 
37 
58 
        Perris Vly
67 
46 
77 
        Phelan
46 
46 
47 
        Pomona Walnut Vly
59 
50 
51 
        S Central LA CO
46 
46 
50 
        S San Gabriel Vly
53 
46 
 
        SW Coastal LA
53 
50 
44 
        SW San Bernardino
63 
50 
90 
        Saddleback Vly
50 
46 
58 
        San Gabriel Mts
50 
46 
71 
        Santa Clarita Vly
67 
46 
48 
        South Coastal LA
53 
50 
44 
        Southeast LA CO
61 
50 
58 
        Temecula Vly
66 
42 
77 
        Trona
37 
37 
44 
        Twentynine Palms
46 
46 
40 
        Victorville
38 
37 
44 
        W San Bernardino M
67 
50 
90 
        W San Fernando Vly
55 
50 
67 
        W San Gabriel Vly
67 
46 
50 
Mammoth Lakes
aqi not available
aqi not available
20 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
43 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
40 
        Davenport
Good
Good
 
        Hollister
Good
Good
44 
        King City
Good
Good
54 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
39 
        Salinas
Good
Good
54 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
45 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
23 
Paradise
Good
Good
34 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
11 
Red Bluff
aqi not available
aqi not available
 
Redding
44 
45 
37 
Sacramento Area
        Arden Arcade-Del Paso Manor
42 
33 
44 
        Auburn
38 
21 
44 
        Colfax
38 
21 
37 
        Cool
aqi not available
aqi not available
41 
        Davis
42 
25 
48 
        Elk Grove
42 
33 
46 
        Folsom
42 
33 
44 
        Lincoln
38 
21 
41 
        Natomas
42 
33 
38 
        North Highlands
42 
33 
44 
        Placerville
aqi not available
aqi not available
41 
        Rio Vista
42 
25 
36 
        Roseville-Rocklin
38 
21 
40 
        Sacramento
42 
33 
44 
        Sloughhouse
42 
33 
46 
        Vacaville
42 
25 
41 
        Woodland
42 
25 
41 
San Diego Area
        San Diego Coast
Good
Good
74 
        San Diego Foothills
Moderate
Good
71 
        San Diego Mesa and Inland Valley
Moderate
Moderate
71 
San Francisco Area
        Concord
35 
49 
46 
        Fairfield
35 
49 
44 
        Fremont
37 
46 
59 
        Livermore
35 
49 
44 
        Napa
36 
46 
55 
        Oakland
38 
44 
56 
        Redwood City
37 
46 
59 
        San Francisco
38 
44 
54 
        San Jose
36 
43 
45 
        San Rafael
36 
46 
50 
        Santa Rosa
36 
46 
46 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
53 
52 
61 
        Fresno
50 
42 
51 
        Hanford
53 
51 
54 
        Madera
53 
49 
49 
        Merced
46 
48 
 
        Modesto
53 
43 
46 
        Stockton
50 
51 
43 
        Visalia
48 
41 
58 
San Luis Obispo County
        Atascadero
39 
38 
42 
        Carrizo Plains
42 
39 
44 
        Morro Bay
37 
36 
38 
        Nipomo
59 
75 
132 
        Paso Robles
41 
39 
43 
        Red Hills
43 
40 
44 
        San Luis Obispo
38 
36 
44 
Santa Barbara County
        Carpinteria
Good
Good
39 
        Gaviota Coast
Good
Good
43 
        Goleta
Good
Good
42 
        Lompoc
Good
Good
49 
        Paradise Road
Good
Good
42 
        Santa Barbara
Good
Good
43 
        Santa Maria
Good
Good
65 
        Santa Ynez
Good
Good
40 
Santa Rosa Rancheria
aqi not available
aqi not available
48 
Sequoia/Kings Canyon National Parks
42 
41 
40 
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
21 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
43 
Ventura County Area
        Ojai
50 
45 
46 
        Oxnard
45 
45 
44 
        Piru
50 
45 
48 
        Simi Valley
50 
45 
46 
        Thousand Oaks
50 
45 
47 
Western Nevada County
47 
aqi not available
43 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
42 
41 
31 
Yuba City/Marysville
Good
Good
38 
Yucca Vly
46 
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.