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_20180118_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
Thu
Jan 18
Fri
Jan 19
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
76 
Bishop Paiute Tribe
aqi not available
aqi not available
76 
Chester
aqi not available
aqi not available
98 
Chico
Good
aqi not available
69 
Death Valley National Park
aqi not available
aqi not available
30 
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
17 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
69 
Imperial Valley
84
111
93 
Joshua Tree National Park
aqi not available
aqi not available
35 
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
34 
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
50
aqi not available
25 
        Anza Vly
70
aqi not available
32 
        Banning
53
aqi not available
16 
        Barstow
38
aqi not available
        Big Bear Lake
37
aqi not available
 
        C San Bernardino M
46
aqi not available
58 
        C San Bernardino-1
89
aqi not available
56 
        C San Bernardino-2
72
aqi not available
56 
        Capistrano Vly
72
aqi not available
23 
        Central Coastal
68
aqi not available
23 
        Central LA CO
70
aqi not available
67 
        Central Orange-1
74
aqi not available
88 
        Central Orange-2
70
aqi not available
88 
        Coachella Vly
63
aqi not available
19 
        E San Bernardino
66
aqi not available
18 
        E San Fernando Vly
68
aqi not available
56 
        E San Gabriel V-1
70
aqi not available
28 
        E San Gabriel V-2
68
aqi not available
28 
        East Riverside CO
50
aqi not available
 
        Hemet/San Jacinto
57
aqi not available
32 
        Hesperia
50
aqi not available
11 
        Lake Elsinore
80
aqi not available
23 
        Metro Riverside CO
117
aqi not available
48 
        N Coastal Orange
68
aqi not available
67 
        NW Coastal LA
70
aqi not available
67 
        NW San Bernardino
91
aqi not available
56 
        Norco/Corona
93
aqi not available
88 
        North Orange CO
78
aqi not available
88 
        Perris Vly
80
aqi not available
32 
        Phelan
50
aqi not available
26 
        Pomona Walnut Vly
74
aqi not available
        S Central LA CO
57
aqi not available
        S San Gabriel Vly
59
aqi not available
 
        SW Coastal LA
74
aqi not available
67 
        SW San Bernardino
102
aqi not available
56 
        Saddleback Vly
66
aqi not available
88 
        San Gabriel Mts
66
aqi not available
25 
        Santa Clarita Vly
50
aqi not available
11 
        South Coastal LA
74
aqi not available
67 
        Southeast LA CO
74
aqi not available
88 
        Temecula Vly
74
aqi not available
32 
        Trona
50
aqi not available
        Twentynine Palms
38
aqi not available
        Victorville
50
aqi not available
        W San Bernardino M
59
aqi not available
58 
        W San Fernando Vly
78
aqi not available
56 
        W San Gabriel Vly
68
aqi not available
61 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
15 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
aqi not available
aqi not available
35 
        Davenport
Good
aqi not available
 
        Hollister
aqi not available
aqi not available
63 
        King City
aqi not available
aqi not available
36 
        Marina/Seaside
Good
aqi not available
 
        Monterey Peninsula
aqi not available
aqi not available
 
        Pinnacles National Monument
aqi not available
aqi not available
        Salinas
aqi not available
aqi not available
63 
        San Lorenzo Valley
aqi not available
aqi not available
 
        Santa Cruz
aqi not available
aqi not available
31 
        Scotts Valley
aqi not available
aqi not available
 
        Watsonville
Good
aqi not available
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
14 
Paradise
Good
aqi not available
18 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
84 
Quincy
aqi not available
aqi not available
22 
Red Bluff
aqi not available
aqi not available
 
Redding
aqi not available
aqi not available
72 
Sacramento Area
        Arden Arcade-Del Paso Manor
84
63
92 
        Auburn
53
50
65 
        Colfax
53
50
57 
        Cool
aqi not available
aqi not available
 
        Davis
72
55
56 
        Elk Grove
84
63
83 
        Folsom
84
63
70 
        Lincoln
53
50
 
        Natomas
84
63
 
        North Highlands
84
63
        Placerville
aqi not available
aqi not available
 
        Rio Vista
72
55
61 
        Roseville-Rocklin
53
50
56 
        Sacramento
84
63
85 
        Sloughhouse
84
63
74 
        Vacaville
72
55
54 
        Woodland
72
55
82 
San Diego Area
        San Diego Coast
Moderate
aqi not available
87 
        San Diego Foothills
Good
aqi not available
41 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
41 
San Francisco Area
        Concord
59
Good
52 
        Fairfield
59
Good
73 
        Fremont
42
Good
77 
        Livermore
59
Good
60 
        Napa
57
Good
79 
        Oakland
61
Good
123 
        Redwood City
42
Good
77 
        San Francisco
61
Good
107 
        San Jose
42
Good
67 
        San Rafael
57
Good
74 
        Santa Rosa
57
Good
62 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
99
Moderate
90 
        Fresno
78
Moderate
73 
        Hanford
89
Moderate
14 
        Madera
80
Moderate
        Merced
83
Moderate
77 
        Modesto
72
Moderate
109 
        Stockton
64
Moderate
89 
        Visalia
99
Moderate
125 
San Luis Obispo County
        Atascadero
26
30
40 
        Carrizo Plains
34
35
        Morro Bay
30
31
12 
        Nipomo
31
40
32 
        Paso Robles
28
30
40 
        Red Hills
37
36
42 
        San Luis Obispo
28
30
19 
Santa Barbara County
        Carpinteria
Good
aqi not available
        Gaviota Coast
Good
aqi not available
34 
        Goleta
Good
aqi not available
28 
        Lompoc
Good
aqi not available
37 
        Paradise Road
Good
aqi not available
14 
        Santa Barbara
Moderate
aqi not available
42 
        Santa Maria
Good
aqi not available
19 
        Santa Ynez
Good
aqi not available
Santa Rosa Rancheria
aqi not available
aqi not available
46 
Sequoia/Kings Canyon National Parks
aqi not available
aqi not available
34 
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
69 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
Ventura County Area
        Ojai
50
45
29 
        Oxnard
45
45
 
        Piru
45
45
24 
        Simi Valley
45
45
10 
        Thousand Oaks
45
45
18 
Western Nevada County
aqi not available
aqi not available
52 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
19 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
aqi not available
aqi not available
29 
Yuba City/Marysville
Good
aqi not available
74 
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.