California
 
Data and Forecasts courtesy of:
 

 - 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 Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20171123_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.
 - 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 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 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
Thu
Nov 23
Fri
Nov 24
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
 
Bishop Paiute Tribe
aqi not available
aqi not available
 
Chester
aqi not available
aqi not available
 
Chico
Moderate
aqi not available
 
Death Valley National Park
aqi not available
aqi not available
 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
aqi not available
 
Imperial Valley
63
73
 
Joshua Tree National Park
aqi not available
aqi not available
 
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
 
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
aqi not available
 
        Anza Vly
74
aqi not available
 
        Banning
67
aqi not available
 
        Barstow
42
aqi not available
 
        Big Bear Lake
46
aqi not available
 
        C San Bernardino M
46
aqi not available
 
        C San Bernardino-1
70
aqi not available
 
        C San Bernardino-2
72
aqi not available
 
        Capistrano Vly
50
aqi not available
 
        Central Coastal
46
aqi not available
 
        Central LA CO
63
aqi not available
 
        Central Orange-1
57
aqi not available
 
        Central Orange-2
59
aqi not available
 
        Coachella Vly
50
aqi not available
 
        E San Bernardino
59
aqi not available
 
        E San Fernando Vly
61
aqi not available
 
        E San Gabriel V-1
66
aqi not available
 
        E San Gabriel V-2
55
aqi not available
 
        East Riverside CO
50
aqi not available
 
        Hemet/San Jacinto
57
aqi not available
 
        Hesperia
50
aqi not available
 
        Lake Elsinore
74
aqi not available
 
        Metro Riverside CO
74
aqi not available
 
        N Coastal Orange
50
aqi not available
 
        NW Coastal LA
61
aqi not available
 
        NW San Bernardino
70
aqi not available
 
        Norco/Corona
70
aqi not available
 
        North Orange CO
59
aqi not available
 
        Perris Vly
70
aqi not available
 
        Phelan
50
aqi not available
 
        Pomona Walnut Vly
61
aqi not available
 
        S Central LA CO
50
aqi not available
 
        S San Gabriel Vly
59
aqi not available
 
        SW Coastal LA
66
aqi not available
 
        SW San Bernardino
72
aqi not available
 
        Saddleback Vly
50
aqi not available
 
        San Gabriel Mts
50
aqi not available
 
        Santa Clarita Vly
50
aqi not available
 
        South Coastal LA
66
aqi not available
 
        Southeast LA CO
63
aqi not available
 
        Temecula Vly
72
aqi not available
 
        Trona
50
aqi not available
 
        Twentynine Palms
46
aqi not available
 
        Victorville
50
aqi not available
 
        W San Bernardino M
57
aqi not available
 
        W San Fernando Vly
57
aqi not available
 
        W San Gabriel Vly
61
aqi not available
 
Mammoth Lakes
aqi not available
aqi not available
 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
 
Mono Lake
aqi not available
aqi not available
 
Monterey Bay Area
        Carmel Valley
Good
Good
 
        Davenport
Good
Good
 
        Hollister
Good
Good
 
        King City
Good
Good
 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
 
        Salinas
Good
Good
 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
 
Paradise
Moderate
aqi not available
 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
 
Red Bluff
aqi not available
aqi not available
 
Redding
68
65
 
Sacramento Area
        Arden Arcade-Del Paso Manor
91
72
 
        Auburn
63
53
 
        Colfax
63
53
 
        Cool
aqi not available
aqi not available
 
        Davis
76
59
 
        Elk Grove
91
72
 
        Folsom
91
72
 
        Lincoln
63
53
 
        Natomas
91
72
 
        North Highlands
91
72
 
        Placerville
aqi not available
aqi not available
 
        Rio Vista
76
59
 
        Roseville-Rocklin
63
53
 
        Sacramento
91
72
 
        Sloughhouse
91
72
 
        Vacaville
76
59
 
        Woodland
76
59
 
San Diego Area
        San Diego Coast
Moderate
Good
 
        San Diego Foothills
Moderate
Moderate
 
        San Diego Mesa and Inland Valley
Moderate
Moderate
 
San Francisco Area
        Concord
91
Moderate
 
        Fairfield
91
Moderate
 
        Fremont
87
Moderate
 
        Livermore
91
Moderate
 
        Napa
84
Moderate
 
        Oakland
93
Moderate
 
        Redwood City
87
Moderate
 
        San Francisco
93
Moderate
 
        San Jose
91
Moderate
 
        San Rafael
84
Moderate
 
        Santa Rosa
84
Moderate
 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
91
Moderate
 
        Fresno
95
Moderate
 
        Hanford
144
Unhealthy for Sensitive Groups
 
        Madera
89
Moderate
 
        Merced
95
Moderate
 
        Modesto
85
Moderate
 
        Stockton
66
Moderate
 
        Visalia
99
Moderate
 
San Luis Obispo County
        Atascadero
50
48
 
        Carrizo Plains
46
44
 
        Morro Bay
45
43
 
        Nipomo
50
48
 
        Paso Robles
50
47
 
        Red Hills
48
46
 
        San Luis Obispo
49
44
 
Santa Barbara County
        Carpinteria
Good
Good
 
        Gaviota Coast
Good
Good
 
        Goleta
Good
Good
 
        Lompoc
Good
Good
 
        Paradise Road
Good
Good
 
        Santa Barbara
Good
Good
 
        Santa Maria
Good
Good
 
        Santa Ynez
Good
Good
 
Santa Rosa Rancheria
aqi not available
aqi not available
 
Sequoia/Kings Canyon National Parks
aqi not available
aqi not available
 
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
50
50
 
        Oxnard
50
50
 
        Piru
50
50
 
        Simi Valley
50
50
 
        Thousand Oaks
50
50
 
Western Nevada County
35
35
 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
aqi not available
aqi not available
 
Yuba City/Marysville
Moderate
Moderate
 
Yucca Vly
50
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.