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_20171214_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
Dec 14
Fri
Dec 15
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
33 
Bishop Paiute Tribe
aqi not available
aqi not available
27 
Chester
aqi not available
aqi not available
65 
Chico
Moderate
Moderate
76 
Death Valley National Park
34
aqi not available
34 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
14 
Great Basin Air District
aqi not available
aqi not available
52 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
72 
Imperial Valley
50
53
101 
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
39
aqi not available
36 
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
29 
Los Angeles Area
        Antelope Vly
38
aqi not available
61 
        Anza Vly
70
aqi not available
43 
        Banning
46
aqi not available
58 
        Barstow
37
aqi not available
        Big Bear Lake
33
aqi not available
 
        C San Bernardino M
42
aqi not available
39 
        C San Bernardino-1
68
aqi not available
42 
        C San Bernardino-2
61
aqi not available
42 
        Capistrano Vly
72
aqi not available
18 
        Central Coastal
57
aqi not available
18 
        Central LA CO
66
aqi not available
91 
        Central Orange-1
70
aqi not available
85 
        Central Orange-2
68
aqi not available
85 
        Coachella Vly
57
aqi not available
67 
        E San Bernardino
42
aqi not available
18 
        E San Fernando Vly
70
aqi not available
91 
        E San Gabriel V-1
63
aqi not available
63 
        E San Gabriel V-2
59
aqi not available
63 
        East Riverside CO
38
aqi not available
 
        Hemet/San Jacinto
46
aqi not available
40 
        Hesperia
38
aqi not available
52 
        Lake Elsinore
76
aqi not available
43 
        Metro Riverside CO
80
aqi not available
75 
        N Coastal Orange
63
aqi not available
87 
        NW Coastal LA
66
aqi not available
87 
        NW San Bernardino
63
aqi not available
42 
        Norco/Corona
72
aqi not available
85 
        North Orange CO
76
aqi not available
85 
        Perris Vly
61
aqi not available
40 
        Phelan
55
aqi not available
 
        Pomona Walnut Vly
61
aqi not available
        S Central LA CO
55
aqi not available
        S San Gabriel Vly
57
aqi not available
 
        SW Coastal LA
74
aqi not available
87 
        SW San Bernardino
66
aqi not available
42 
        Saddleback Vly
68
aqi not available
85 
        San Gabriel Mts
61
aqi not available
63 
        Santa Clarita Vly
53
aqi not available
45 
        South Coastal LA
76
aqi not available
87 
        Southeast LA CO
70
aqi not available
85 
        Temecula Vly
72
aqi not available
43 
        Trona
38
aqi not available
47 
        Twentynine Palms
37
aqi not available
        Victorville
38
aqi not available
        W San Bernardino M
53
aqi not available
42 
        W San Fernando Vly
59
aqi not available
91 
        W San Gabriel Vly
61
aqi not available
70 
Mammoth Lakes
aqi not available
aqi not available
21 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
91 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
32 
        Davenport
aqi not available
aqi not available
 
        Hollister
Good
Good
27 
        King City
Good
Good
29 
        Marina/Seaside
aqi not available
aqi not available
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
19 
        Salinas
Good
Good
32 
        San Lorenzo Valley
Moderate
Moderate
 
        Santa Cruz
Good
Good
30 
        Scotts Valley
Moderate
Moderate
 
        Watsonville
aqi not available
aqi not available
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
52 
Paradise
Good
Good
40 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
86 
Red Bluff
aqi not available
aqi not available
43 
Redding
74
aqi not available
40 
Sacramento Area
        Arden Arcade-Del Paso Manor
102
102
63 
        Auburn
57
66
13 
        Colfax
57
66
26 
        Cool
aqi not available
aqi not available
 
        Davis
78
72
57 
        Elk Grove
102
102
69 
        Folsom
102
102
44 
        Lincoln
57
66
 
        Natomas
102
102
 
        North Highlands
102
102
        Placerville
aqi not available
aqi not available
22 
        Rio Vista
78
72
62 
        Roseville-Rocklin
57
66
48 
        Sacramento
102
102
77 
        Sloughhouse
102
102
25 
        Vacaville
78
72
73 
        Woodland
78
72
58 
San Diego Area
        San Diego Coast
Good
aqi not available
47 
        San Diego Foothills
Good
aqi not available
39 
        San Diego Mesa and Inland Valley
Moderate
aqi not available
78 
San Francisco Area
        Concord
95
Moderate
57 
        Fairfield
95
Moderate
90 
        Fremont
84
Moderate
30 
        Livermore
95
Moderate
51 
        Napa
102
Moderate
63 
        Oakland
102
Moderate
80 
        Redwood City
84
Moderate
29 
        San Francisco
102
Moderate
79 
        San Jose
89
Moderate
69 
        San Rafael
102
Moderate
51 
        Santa Rosa
102
Moderate
56 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
144
Unhealthy for Sensitive Groups
146 
        Fresno
124
Moderate
97 
        Hanford
147
Moderate
        Madera
97
Moderate
        Merced
89
Moderate
62 
        Modesto
142
Moderate
133 
        Stockton
124
Moderate
102 
        Visalia
119
Moderate
135 
San Luis Obispo County
        Atascadero
71
83
57 
        Carrizo Plains
48
49
15 
        Morro Bay
46
48
35 
        Nipomo
78
89
64 
        Paso Robles
78
87
57 
        Red Hills
46
47
38 
        San Luis Obispo
44
45
28 
Santa Barbara County
        Carpinteria
Very Unhealthy
aqi not available
        Gaviota Coast
Moderate
aqi not available
55 
        Goleta
Unhealthy for Sensitive Groups
aqi not available
51 
        Lompoc
Moderate
aqi not available
32 
        Paradise Road
Good
aqi not available
29 
        Santa Barbara
Unhealthy
aqi not available
124 
        Santa Maria
Good
aqi not available
21 
        Santa Ynez
Moderate
aqi not available
Santa Rosa Rancheria
aqi not available
aqi not available
45 
Sequoia/Kings Canyon National Parks
46
aqi not available
22 
South Lake Tahoe
aqi not available
aqi not available
19 
Tahoe City area
aqi not available
aqi not available
23 
Truckee
aqi not available
aqi not available
80 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
Ventura
aqi not available
aqi not available
40 
Ventura County Area
        Ojai
150
150
158 
        Oxnard
65
55
40 
        Piru
40
40
34 
        Simi Valley
40
60
36 
        Thousand Oaks
50
70
29 
Western Nevada County
37
38
44 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
35 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
50
aqi not available
44 
Yuba City/Marysville
aqi not available
aqi not available
75 
Yucca Vly
38
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.