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_20171016_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
Mon
Oct 16
Tue
Oct 17
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
40 
Bishop Paiute Tribe
aqi not available
aqi not available
 
Chester
aqi not available
aqi not available
56 
Chico
Moderate
Moderate
78 
Death Valley National Park
40
37
41 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
36 
Great Basin Air District
aqi not available
aqi not available
40 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
70 
Imperial Valley
67
80
61 
Joshua Tree National Park
aqi not available
aqi not available
48 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
44
45
45 
Laytonville
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
 
Leggett
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
 
Lone Pine Paiute-Shoshone Reservation
aqi not available
aqi not available
53 
Los Angeles Area
        Antelope Vly
46
46
37 
        Anza Vly
78
63
87 
        Banning
67
67
27 
        Barstow
46
46
30 
        Big Bear Lake
46
46
 
        C San Bernardino M
100
100
34 
        C San Bernardino-1
97
93
61 
        C San Bernardino-2
80
68
61 
        Capistrano Vly
80
66
49 
        Central Coastal
57
55
49 
        Central LA CO
63
63
87 
        Central Orange-1
70
66
30 
        Central Orange-2
70
66
30 
        Coachella Vly
66
70
57 
        E San Bernardino
100
70
33 
        E San Fernando Vly
66
66
87 
        E San Gabriel V-1
100
70
48 
        E San Gabriel V-2
100
66
48 
        East Riverside CO
53
53
46 
        Hemet/San Jacinto
61
57
87 
        Hesperia
53
53
54 
        Lake Elsinore
93
78
37 
        Metro Riverside CO
95
91
87 
        N Coastal Orange
57
57
40 
        NW Coastal LA
63
63
64 
        NW San Bernardino
100
74
61 
        Norco/Corona
84
72
55 
        North Orange CO
89
72
30 
        Perris Vly
78
68
87 
        Phelan
68
66
46 
        Pomona Walnut Vly
78
68
22 
        S Central LA CO
53
53
49 
        S San Gabriel Vly
67
55
 
        SW Coastal LA
66
68
64 
        SW San Bernardino
76
70
61 
        Saddleback Vly
72
57
49 
        San Gabriel Mts
74
66
48 
        Santa Clarita Vly
67
67
25 
        South Coastal LA
66
68
43 
        Southeast LA CO
70
68
30 
        Temecula Vly
84
70
87 
        Trona
50
50
36 
        Twentynine Palms
42
46
30 
        Victorville
53
53
36 
        W San Bernardino M
68
66
61 
        W San Fernando Vly
59
59
87 
        W San Gabriel Vly
100
66
46 
Mammoth Lakes
aqi not available
aqi not available
28 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
38 
Mono Lake
aqi not available
aqi not available
11 
Monterey Bay Area
        Carmel Valley
Moderate
Moderate
67 
        Davenport
Moderate
Moderate
 
        Hollister
Moderate
Moderate
67 
        King City
Moderate
Moderate
66 
        Marina/Seaside
Moderate
Moderate
 
        Monterey Peninsula
Moderate
Moderate
 
        Pinnacles National Monument
Good
Good
58 
        Salinas
Moderate
Moderate
84 
        San Lorenzo Valley
Moderate
Moderate
 
        Santa Cruz
Good
Good
84 
        Scotts Valley
Moderate
Moderate
 
        Watsonville
Moderate
Moderate
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
53 
Paradise
Moderate
Moderate
61 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
52 
Quincy
aqi not available
aqi not available
71 
Red Bluff
aqi not available
aqi not available
55 
Redding
aqi not available
55
53 
Sacramento Area
        Arden Arcade-Del Paso Manor
84
99
64 
        Auburn
53
89
60 
        Colfax
53
89
52 
        Cool
53
89
35 
        Davis
102
102
152 
        Elk Grove
84
99
59 
        Folsom
84
99
47 
        Lincoln
53
89
 
        Natomas
84
99
 
        North Highlands
84
99
20 
        Placerville
53
89
74 
        Rio Vista
102
102
69 
        Roseville-Rocklin
53
89
62 
        Sacramento
84
99
76 
        Sloughhouse
84
99
57 
        Vacaville
102
102
35 
        Woodland
102
102
60 
San Diego Area
        San Diego Coast
Moderate
Moderate
93 
        San Diego Foothills
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
61 
        San Diego Mesa and Inland Valley
Moderate
Moderate
70 
San Francisco Area
        Concord
101
84
70 
        Fairfield
101
84
61 
        Fremont
87
80
84 
        Livermore
101
84
58 
        Napa
137
132
74 
        Oakland
89
84
71 
        Redwood City
87
80
84 
        San Francisco
89
84
60 
        San Jose
101
80
68 
        San Rafael
137
132
58 
        Santa Rosa
137
132
157 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
112
100
122 
        Fresno
100
80
100 
        Hanford
84
66
105 
        Madera
64
62
71 
        Merced
62
64
83 
        Modesto
66
66
80 
        Stockton
59
78
72 
        Visalia
80
70
79 
San Luis Obispo County
        Atascadero
71
69
49 
        Carrizo Plains
55
50
64 
        Morro Bay
48
44
50 
        Nipomo
67
63
64 
        Paso Robles
72
70
71 
        Red Hills
58
52
93 
        San Luis Obispo
67
65
74 
Santa Barbara County
        Carpinteria
Moderate
Good
37 
        Gaviota Coast
Moderate
Good
61 
        Goleta
Moderate
Good
44 
        Lompoc
Moderate
Good
105 
        Paradise Road
Moderate
Good
61 
        Santa Barbara
Moderate
Good
45 
        Santa Maria
Good
Good
45 
        Santa Ynez
Good
Good
50 
Santa Rosa Rancheria
aqi not available
aqi not available
94 
Sequoia/Kings Canyon National Parks
50
46
97 
South Lake Tahoe
aqi not available
aqi not available
38 
Tahoe City area
aqi not available
aqi not available
41 
Truckee
aqi not available
aqi not available
61 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
44 
Ventura County Area
        Ojai
60
60
43 
        Oxnard
65
65
44 
        Piru
60
60
47 
        Simi Valley
60
60
49 
        Thousand Oaks
60
60
42 
Western Nevada County
120
80
129 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
92 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
46
42
66 
Yuba City/Marysville
Moderate
Moderate
83 
Yucca Vly
53
53
 
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.