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_20190819_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
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 Air Resources 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
Siskiyou County Air Pollution Control 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
Mon
Aug 19
Tue
Aug 20
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
41 
Bishop Paiute Tribe
aqi not available
aqi not available
32 
Brawley
100
100
Calexico
100
100
40 
Chester
aqi not available
aqi not available
23 
Chico
Good
aqi not available
34 
Death Valley National Park
46
aqi not available
44 
El Centro
100
100
38 
Eureka
aqi not available
aqi not available
11 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
17 
Great Basin Air District
aqi not available
aqi not available
41 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
30 
Imperial Valley
100
100
54 
Indio - Twenty Nine Palms Reservation
aqi not available
aqi not available
42 
Joshua Tree National Park
aqi not available
aqi not available
35 
La Grange
aqi not available
aqi not available
 
Lassen Volcanic National Park
44
aqi not available
33 
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
17 
Los Angeles Area
        Antelope Vly
47
aqi not available
32 
        Anza Vly
54
aqi not available
27 
        Banning
100
aqi not available
44 
        Barstow
80
aqi not available
27 
        Big Bear Lake
122
aqi not available
 
        C San Bernardino M
126
aqi not available
74 
        C San Bernardino-1
108
aqi not available
38 
        C San Bernardino-2
108
aqi not available
38 
        Capistrano Vly
39
aqi not available
24 
        Central Coastal
37
aqi not available
24 
        Central LA CO
63
aqi not available
49 
        Central Orange-1
55
aqi not available
26 
        Central Orange-2
55
aqi not available
26 
        Coachella Vly
90
aqi not available
48 
        E San Bernardino
133
aqi not available
35 
        E San Fernando Vly
61
aqi not available
49 
        E San Gabriel V-1
87
aqi not available
45 
        E San Gabriel V-2
87
aqi not available
45 
        East Riverside CO
97
aqi not available
 
        Hemet/San Jacinto
77
aqi not available
31 
        Hesperia
80
aqi not available
47 
        Lake Elsinore
84
aqi not available
24 
        Metro Riverside CO
133
aqi not available
41 
        N Coastal Orange
33
aqi not available
23 
        NW Coastal LA
63
aqi not available
28 
        NW San Bernardino
84
aqi not available
38 
        Norco/Corona
115
aqi not available
41 
        North Orange CO
59
aqi not available
26 
        Perris Vly
112
aqi not available
31 
        Phelan
97
aqi not available
38 
        Pomona Walnut Vly
64
aqi not available
19 
        S Central LA CO
66
aqi not available
26 
        S San Gabriel Vly
61
aqi not available
 
        SW Coastal LA
66
aqi not available
27 
        SW San Bernardino
93
aqi not available
38 
        Saddleback Vly
50
aqi not available
26 
        San Gabriel Mts
67
aqi not available
45 
        Santa Clarita Vly
93
aqi not available
27 
        South Coastal LA
50
aqi not available
23 
        Southeast LA CO
63
aqi not available
26 
        Temecula Vly
42
aqi not available
27 
        Trona
51
aqi not available
35 
        Twentynine Palms
97
aqi not available
27 
        Victorville
80
aqi not available
42 
        W San Bernardino M
90
aqi not available
74 
        W San Fernando Vly
54
aqi not available
49 
        W San Gabriel Vly
57
aqi not available
30 
Mammoth Lakes
aqi not available
aqi not available
23 
Markleeville
aqi not available
aqi not available
 
Mendocino County
aqi not available
aqi not available
 
Mono Lake
aqi not available
aqi not available
39 
Monterey Bay Area
        Carmel Valley
Good
aqi not available
 
        Davenport
Good
aqi not available
 
        Hollister
Good
aqi not available
 
        King City
Good
aqi not available
 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
Good
aqi not available
 
        Pinnacles National Monument
Good
aqi not available
 
        Salinas
Good
aqi not available
22 
        San Lorenzo Valley
Good
aqi not available
 
        Santa Cruz
Good
aqi not available
21 
        Scotts Valley
Good
aqi not available
 
        Watsonville
Good
aqi not available
 
Niland
100
100
54 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
29 
Paradise
Good
aqi not available
 
Point Arena
aqi not available
aqi not available
17 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
50 
Quincy
aqi not available
aqi not available
21 
Red Bluff
aqi not available
aqi not available
41 
Redding
aqi not available
aqi not available
32 
Sacramento Area
        Arden Arcade-Del Paso Manor
67
77
21 
        Auburn
74
87
39 
        Colfax
74
87
43 
        Cool
71
84
28 
        Davis
50
58
21 
        Elk Grove
67
77
26 
        Folsom
67
77
 
        Lincoln
74
87
23 
        Natomas
67
77
 
        North Highlands
67
77
29 
        Placerville
71
84
38 
        Rio Vista
50
58
18 
        Roseville-Rocklin
74
87
22 
        Sacramento
67
77
22 
        Sloughhouse
67
77
19 
        Vacaville
50
58
28 
        Woodland
50
58
18 
San Diego Area
        San Diego Coast
Good
aqi not available
23 
        San Diego Foothills
Moderate
aqi not available
19 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
27 
San Francisco Area
        Concord
42
Moderate
25 
        Fairfield
42
Moderate
27 
        Fremont
42
Good
21 
        Livermore
42
Moderate
19 
        Napa
42
Good
23 
        Oakland
50
Good
24 
        Redwood City
42
Good
        San Francisco
50
Good
21 
        San Jose
41
Moderate
21 
        San Rafael
42
Good
22 
        Santa Rosa
42
Good
23 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
50
aqi not available
32 
        Fresno
47
aqi not available
31 
        Hanford
44
aqi not available
28 
        Madera
43
aqi not available
30 
        Merced
42
aqi not available
23 
        Modesto
50
aqi not available
26 
        Stockton
44
aqi not available
20 
        Visalia
46
aqi not available
45 
San Luis Obispo County
        Atascadero
44
46
23 
        Carrizo Plains
43
54
19 
        Morro Bay
33
35
25 
        Nipomo
35
55
19 
        Paso Robles
43
46
23 
        Red Hills
43
46
22 
        San Luis Obispo
36
38
26 
Santa Barbara County
        Carpinteria
Good
aqi not available
19 
        Gaviota Coast
Good
aqi not available
31 
        Goleta
Good
aqi not available
17 
        Lompoc
Good
aqi not available
25 
        Paradise Road
Good
aqi not available
21 
        Santa Barbara
Good
aqi not available
27 
        Santa Maria
Good
aqi not available
22 
        Santa Ynez
Good
aqi not available
22 
Santa Rosa Rancheria
aqi not available
aqi not available
51 
Sequoia/Kings Canyon National Parks
45
aqi not available
53 
South Lake Tahoe
aqi not available
aqi not available
11 
Tahoe City area
aqi not available
aqi not available
Truckee
aqi not available
aqi not available
60 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
41 
Ukiah
aqi not available
aqi not available
17 
Ventura County Area
        Ojai
70
75
23 
        Oxnard
40
45
22 
        Piru
60
70
19 
        Simi Valley
65
75
35 
        Thousand Oaks
45
50
25 
Western Nevada County
65
70
61 
Westmorland
100
100
15 
Willits
aqi not available
aqi not available
17 
Willows
aqi not available
aqi not available
 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
44
aqi not available
84 
Yreka
aqi not available
aqi not available
26 
Yuba City/Marysville
48
aqi not available
40 
Yucca Vly
93
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.