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_20171212_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
Dec 12
Wed
Dec 13
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
36 
Bishop Paiute Tribe
aqi not available
aqi not available
Chester
aqi not available
aqi not available
40 
Chico
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
46 
Death Valley National Park
32
aqi not available
27 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
27 
Great Basin Air District
aqi not available
aqi not available
36 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
48 
Imperial Valley
59
63
36 
Joshua Tree National Park
aqi not available
aqi not available
37 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
38
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
Los Angeles Area
        Antelope Vly
33
38
26 
        Anza Vly
42
46
41 
        Banning
37
37
39 
        Barstow
37
37
 
        Big Bear Lake
37
37
 
        C San Bernardino M
37
37
33 
        C San Bernardino-1
38
48
41 
        C San Bernardino-2
38
38
41 
        Capistrano Vly
38
46
29 
        Central Coastal
42
38
29 
        Central LA CO
59
53
37 
        Central Orange-1
46
50
31 
        Central Orange-2
42
50
31 
        Coachella Vly
42
46
54 
        E San Bernardino
46
33
36 
        E San Fernando Vly
68
46
37 
        E San Gabriel V-1
38
33
32 
        E San Gabriel V-2
33
35
32 
        East Riverside CO
38
46
 
        Hemet/San Jacinto
42
46
41 
        Hesperia
38
46
31 
        Lake Elsinore
46
37
36 
        Metro Riverside CO
39
46
39 
        N Coastal Orange
42
50
28 
        NW Coastal LA
59
46
28 
        NW San Bernardino
33
42
41 
        Norco/Corona
42
46
35 
        North Orange CO
42
50
33 
        Perris Vly
42
46
41 
        Phelan
42
37
38 
        Pomona Walnut Vly
30
53
37 
        S Central LA CO
50
57
22 
        S San Gabriel Vly
50
57
 
        SW Coastal LA
66
55
28 
        SW San Bernardino
33
59
41 
        Saddleback Vly
38
28
31 
        San Gabriel Mts
42
33
37 
        Santa Clarita Vly
42
28
37 
        South Coastal LA
66
46
28 
        Southeast LA CO
74
55
31 
        Temecula Vly
38
28
41 
        Trona
33
42
23 
        Twentynine Palms
29
37
 
        Victorville
38
46
33 
        W San Bernardino M
46
28
41 
        W San Fernando Vly
63
42
37 
        W San Gabriel Vly
42
38
34 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
70 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
34 
        Davenport
Good
Good
 
        Hollister
Good
Good
43 
        King City
Good
Good
34 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
37 
        Salinas
Good
Good
43 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
42 
        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
25 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
54 
Red Bluff
aqi not available
aqi not available
27 
Redding
65
80
76 
Sacramento Area
        Arden Arcade-Del Paso Manor
102
102
63 
        Auburn
59
68
25 
        Colfax
59
68
30 
        Cool
aqi not available
aqi not available
 
        Davis
78
78
36 
        Elk Grove
102
102
70 
        Folsom
102
102
22 
        Lincoln
59
68
 
        Natomas
102
102
 
        North Highlands
102
102
24 
        Placerville
aqi not available
aqi not available
29 
        Rio Vista
78
78
67 
        Roseville-Rocklin
59
68
21 
        Sacramento
102
102
58 
        Sloughhouse
102
102
20 
        Vacaville
78
78
23 
        Woodland
78
78
25 
San Diego Area
        San Diego Coast
Good
Good
34 
        San Diego Foothills
Good
Good
41 
        San Diego Mesa and Inland Valley
Moderate
Moderate
39 
San Francisco Area
        Concord
95
87
62 
        Fairfield
95
87
66 
        Fremont
80
80
59 
        Livermore
95
87
35 
        Napa
102
102
50 
        Oakland
102
93
75 
        Redwood City
80
80
59 
        San Francisco
102
93
63 
        San Jose
84
84
53 
        San Rafael
102
102
50 
        Santa Rosa
102
102
25 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
157
149
146 
        Fresno
147
97
40 
        Hanford
149
149
158 
        Madera
91
93
39 
        Merced
89
80
107 
        Modesto
147
119
121 
        Stockton
107
112
99 
        Visalia
147
147
154 
San Luis Obispo County
        Atascadero
63
55
38 
        Carrizo Plains
47
46
38 
        Morro Bay
45
44
35 
        Nipomo
63
61
48 
        Paso Robles
59
56
40 
        Red Hills
46
44
39 
        San Luis Obispo
36
36
37 
Santa Barbara County
        Carpinteria
Good
Good
12 
        Gaviota Coast
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
68 
        Goleta
Unhealthy
Unhealthy
89 
        Lompoc
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
77 
        Paradise Road
Good
Good
41 
        Santa Barbara
Unhealthy
Unhealthy
133 
        Santa Maria
Moderate
Moderate
57 
        Santa Ynez
Good
Good
37 
Santa Rosa Rancheria
aqi not available
aqi not available
71 
Sequoia/Kings Canyon National Parks
54
aqi not available
49 
South Lake Tahoe
aqi not available
aqi not available
11 
Tahoe City area
aqi not available
aqi not available
20 
Truckee
aqi not available
aqi not available
40 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
31 
Ventura
Good
Good
57 
Ventura County Area
        Ojai
151
125
159 
        Oxnard
151
100
57 
        Piru
50
50
37 
        Simi Valley
40
40
35 
        Thousand Oaks
40
40
37 
Western Nevada County
37
38
38 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
31 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
45
aqi not available
35 
Yuba City/Marysville
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
56 
Yucca Vly
38
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.