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This is not the current AirNow website. To navigate to the current AirNow website, please go to www.airnow.gov. This website is historical material reflecting the AirNow website as it existed on September 12, 2018. This website is no longer updated and links to external websites and some internal pages may not work.

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_20180921_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
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
Fri
Sep 21
Sat
Sep 22
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
61 
Bishop Paiute Tribe
aqi not available
aqi not available
46 
Chester
aqi not available
aqi not available
23 
Chico
Good
aqi not available
74 
Death Valley National Park
46
44
54 
Eureka
aqi not available
aqi not available
24 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
41 
Great Basin Air District
aqi not available
aqi not available
61 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
60 
Imperial Valley
aqi not available
aqi not available
54 
Joshua Tree National Park
aqi not available
aqi not available
43 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
54
71
71 
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
25 
Los Angeles Area
        Antelope Vly
82
92
49 
        Anza Vly
60
57
119 
        Banning
73
85
87 
        Barstow
67
67
42 
        Big Bear Lake
95
95
 
        C San Bernardino M
111
111
46 
        C San Bernardino-1
101
104
100 
        C San Bernardino-2
101
79
100 
        Capistrano Vly
41
41
47 
        Central Coastal
46
46
47 
        Central LA CO
61
59
62 
        Central Orange-1
57
52
56 
        Central Orange-2
57
52
56 
        Coachella Vly
89
92
63 
        E San Bernardino
114
114
112 
        E San Fernando Vly
61
67
51 
        E San Gabriel V-1
70
89
72 
        E San Gabriel V-2
79
89
72 
        East Riverside CO
89
70
 
        Hemet/San Jacinto
85
76
115 
        Hesperia
85
95
40 
        Lake Elsinore
98
98
119 
        Metro Riverside CO
108
98
90 
        N Coastal Orange
54
50
62 
        NW Coastal LA
54
52
62 
        NW San Bernardino
89
101
90 
        Norco/Corona
79
82
90 
        North Orange CO
54
57
56 
        Perris Vly
101
101
115 
        Phelan
98
101
41 
        Pomona Walnut Vly
85
73
45 
        S Central LA CO
52
52
32 
        S San Gabriel Vly
48
60
 
        SW Coastal LA
50
50
62 
        SW San Bernardino
95
76
90 
        Saddleback Vly
47
45
56 
        San Gabriel Mts
89
92
74 
        Santa Clarita Vly
98
76
74 
        South Coastal LA
33
42
62 
        Southeast LA CO
42
45
56 
        Temecula Vly
44
43
119 
        Trona
76
76
42 
        Twentynine Palms
89
70
42 
        Victorville
50
51
33 
        W San Bernardino M
85
82
90 
        W San Fernando Vly
54
46
51 
        W San Gabriel Vly
79
89
56 
Mammoth Lakes
aqi not available
aqi not available
26 
Markleeville
aqi not available
aqi not available
 
Mendocino County
aqi not available
aqi not available
 
Mono Lake
aqi not available
aqi not available
22 
Monterey Bay Area
        Carmel Valley
Good
Good
 
        Davenport
Good
Good
 
        Hollister
Good
Good
 
        King City
Good
Good
 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
 
        Salinas
Good
Good
39 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
40 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
27 
Paradise
Good
aqi not available
129 
Point Arena
aqi not available
aqi not available
41 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
36 
Quincy
aqi not available
aqi not available
23 
Red Bluff
Good
Good
80 
Redding
51
51
75 
Sacramento Area
        Arden Arcade-Del Paso Manor
101
100
77 
        Auburn
108
105
136 
        Colfax
108
105
87 
        Cool
112
101
126 
        Davis
54
46
46 
        Elk Grove
101
100
90 
        Folsom
101
100
133 
        Lincoln
108
105
 
        Natomas
101
100
 
        North Highlands
101
100
61 
        Placerville
112
101
151 
        Rio Vista
54
46
50 
        Roseville-Rocklin
108
105
 
        Sacramento
101
100
74 
        Sloughhouse
101
100
100 
        Vacaville
54
46
54 
        Woodland
54
46
80 
San Diego Area
        San Diego Coast
Good
Moderate
43 
        San Diego Foothills
Moderate
Moderate
61 
        San Diego Mesa and Inland Valley
Moderate
Moderate
43 
San Francisco Area
        Concord
87
64
43 
        Fairfield
87
64
71 
        Fremont
50
46
44 
        Livermore
87
64
60 
        Napa
55
53
58 
        Oakland
57
53
58 
        Redwood City
50
46
44 
        San Francisco
57
53
56 
        San Jose
93
80
61 
        San Rafael
55
53
31 
        Santa Rosa
55
53
31 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
97
129
115 
        Fresno
93
119
126 
        Hanford
81
112
112 
        Madera
97
90
64 
        Merced
87
74
100 
        Modesto
61
72
93 
        Stockton
58
67
97 
        Visalia
84
108
77 
San Luis Obispo County
        Atascadero
60
74
50 
        Carrizo Plains
69
72
46 
        Morro Bay
42
44
43 
        Nipomo
50
50
46 
        Paso Robles
67
77
50 
        Red Hills
77
69
51 
        San Luis Obispo
44
45
43 
Santa Barbara County
        Carpinteria
Moderate
Moderate
47 
        Gaviota Coast
Moderate
Moderate
61 
        Goleta
Moderate
Moderate
58 
        Lompoc
Good
Good
43 
        Paradise Road
Moderate
Moderate
51 
        Santa Barbara
Moderate
Moderate
57 
        Santa Maria
Good
Good
41 
        Santa Ynez
Moderate
Moderate
45 
Santa Rosa Rancheria
aqi not available
aqi not available
97 
Sequoia/Kings Canyon National Parks
87
67
80 
South Lake Tahoe
aqi not available
aqi not available
24 
Tahoe City area
aqi not available
aqi not available
Truckee
aqi not available
aqi not available
10 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
84 
Ukiah
aqi not available
aqi not available
41 
Ventura County Area
        Ojai
75
70
63 
        Oxnard
55
55
45 
        Piru
80
70
77 
        Simi Valley
105
95
54 
        Thousand Oaks
65
60
69 
Western Nevada County
100
85
119 
Willits
aqi not available
aqi not available
41 
Willows
aqi not available
aqi not available
97 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
51
61
101 
Yreka
aqi not available
aqi not available
42 
Yuba City/Marysville
100
97
61 
Yucca Vly
73
76
 
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.