California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170530_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
May 30
Wed
May 31
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
19 
Bishop Paiute Tribe
aqi not available
aqi not available
18 
Chester
aqi not available
aqi not available
 
Chico
Good
aqi not available
57 
Death Valley National Park
51 
aqi not available
49 
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
Good
aqi not available
30 
Imperial Valley
87 
84 
58 
Joshua Tree National Park
aqi not available
aqi not available
61 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
48 
aqi not available
27 
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
33 
Los Angeles Area
        Antelope Vly
46 
aqi not available
50 
        Anza Vly
67 
aqi not available
55 
        Banning
67 
aqi not available
77 
        Barstow
46 
aqi not available
        Big Bear Lake
100 
aqi not available
 
        C San Bernardino M
132 
aqi not available
55 
        C San Bernardino-1
100 
aqi not available
66 
        C San Bernardino-2
100 
aqi not available
66 
        Capistrano Vly
46 
aqi not available
43 
        Central Coastal
55 
aqi not available
46 
        Central LA CO
55 
aqi not available
71 
        Central Orange-1
46 
aqi not available
45 
        Central Orange-2
46 
aqi not available
46 
        Coachella Vly
100 
aqi not available
77 
        E San Bernardino
132 
aqi not available
20 
        E San Fernando Vly
46 
aqi not available
69 
        E San Gabriel V-1
68 
aqi not available
68 
        E San Gabriel V-2
67 
aqi not available
68 
        East Riverside CO
50 
aqi not available
71 
        Hemet/San Jacinto
67 
aqi not available
55 
        Hesperia
67 
aqi not available
40 
        Lake Elsinore
100 
aqi not available
56 
        Metro Riverside CO
100 
aqi not available
67 
        N Coastal Orange
55 
aqi not available
55 
        NW Coastal LA
46 
aqi not available
55 
        NW San Bernardino
100 
aqi not available
66 
        Norco/Corona
67 
aqi not available
65 
        North Orange CO
46 
aqi not available
45 
        Perris Vly
100 
aqi not available
 
        Phelan
67 
aqi not available
41 
        Pomona Walnut Vly
67 
aqi not available
24 
        S Central LA CO
33 
aqi not available
38 
        S San Gabriel Vly
46 
aqi not available
 
        SW Coastal LA
46 
aqi not available
55 
        SW San Bernardino
67 
aqi not available
66 
        Saddleback Vly
46 
aqi not available
45 
        San Gabriel Mts
67 
aqi not available
68 
        Santa Clarita Vly
67 
aqi not available
66 
        South Coastal LA
37 
aqi not available
55 
        Southeast LA CO
55 
aqi not available
45 
        Temecula Vly
53 
aqi not available
55 
        Trona
46 
aqi not available
50 
        Twentynine Palms
67 
aqi not available
        Victorville
50 
aqi not available
23 
        W San Bernardino M
100 
aqi not available
66 
        W San Fernando Vly
67 
aqi not available
69 
        W San Gabriel Vly
100 
aqi not available
71 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
18 
Mono Lake
aqi not available
aqi not available
11 
Monterey Bay Area
        Carmel Valley
Good
Good
28 
        Davenport
Good
Good
 
        Hollister
Good
Good
22 
        King City
Good
Good
28 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
20 
        Salinas
Good
Good
28 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
26 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
33 
Paradise
Good
aqi not available
33 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
18 
Red Bluff
aqi not available
aqi not available
 
Redding
60 
aqi not available
57 
Sacramento Area
        Arden Arcade-Del Paso Manor
50 
64 
 
        Auburn
67 
71 
43 
        Colfax
67 
71 
33 
        Cool
67 
74 
20 
        Davis
48 
46 
18 
        Elk Grove
50 
64 
27 
        Folsom
50 
64 
22 
        Lincoln
67 
71 
23 
        Natomas
50 
64 
18 
        North Highlands
50 
64 
24 
        Placerville
67 
74 
28 
        Rio Vista
48 
46 
28 
        Roseville-Rocklin
67 
71 
22 
        Sacramento
50 
64 
28 
        Sloughhouse
50 
64 
22 
        Vacaville
48 
46 
35 
        Woodland
48 
46 
21 
San Diego Area
        San Diego Coast
Good
aqi not available
29 
        San Diego Foothills
Moderate
aqi not available
54 
        San Diego Mesa and Inland Valley
Good
aqi not available
69 
San Francisco Area
        Concord
41 
Good
 
        Fairfield
41 
Good
24 
        Fremont
37 
Good
29 
        Livermore
41 
Good
24 
        Napa
40 
Good
25 
        Oakland
38 
Good
51 
        Redwood City
37 
Good
29 
        San Francisco
38 
Good
28 
        San Jose
41 
Good
28 
        San Rafael
40 
Good
24 
        Santa Rosa
40 
Good
21 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
108 
Unhealthy for Sensitive Groups
 
        Fresno
71 
Moderate
25 
        Hanford
74 
Moderate
30 
        Madera
58 
Moderate
21 
        Merced
50 
Good
36 
        Modesto
49 
Good
28 
        Stockton
43 
Good
24 
        Visalia
100 
Moderate
36 
San Luis Obispo County
        Atascadero
35 
35 
21 
        Carrizo Plains
41 
40 
11 
        Morro Bay
35 
35 
29 
        Nipomo
68 
65 
40 
        Paso Robles
35 
35 
28 
        Red Hills
38 
38 
31 
        San Luis Obispo
35 
35 
29 
Santa Barbara County
        Carpinteria
Good
aqi not available
14 
        Gaviota Coast
Good
aqi not available
23 
        Goleta
Good
aqi not available
38 
        Lompoc
Good
aqi not available
35 
        Paradise Road
Good
aqi not available
19 
        Santa Barbara
Good
aqi not available
30 
        Santa Maria
Good
aqi not available
31 
        Santa Ynez
Good
aqi not available
27 
Santa Rosa Rancheria
aqi not available
aqi not available
25 
Sequoia/Kings Canyon National Parks
64 
aqi not available
59 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
21 
Truckee
aqi not available
aqi not available
 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
18 
Ventura County Area
        Ojai
50 
45 
28 
        Oxnard
45 
40 
45 
        Piru
50 
45 
25 
        Simi Valley
50 
45 
61 
        Thousand Oaks
50 
45 
52 
Western Nevada County
aqi not available
aqi not available
80 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
43 
aqi not available
42 
Yuba City/Marysville
Moderate
aqi not available
19 
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.