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_20170823_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
Wed
Aug 23
Thu
Aug 24
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
43 
Bishop Paiute Tribe
aqi not available
aqi not available
27 
Chester
aqi not available
aqi not available
56 
Chico
Moderate
aqi not available
71 
Death Valley National Park
33 
32 
43 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
43 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
aqi not available
68 
Imperial Valley
aqi not available
aqi not available
47 
Joshua Tree National Park
aqi not available
aqi not available
45 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
47 
54 
46 
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
23 
Los Angeles Area
        Antelope Vly
67 
67 
71 
        Anza Vly
46 
67 
84 
        Banning
57 
100 
140 
        Barstow
46 
46 
50 
        Big Bear Lake
67 
100 
 
        C San Bernardino M
100 
161 
136 
        C San Bernardino-1
68 
100 
150 
        C San Bernardino-2
72 
132 
150 
        Capistrano Vly
38 
50 
43 
        Central Coastal
42 
42 
43 
        Central LA CO
61 
53 
101 
        Central Orange-1
37 
50 
58 
        Central Orange-2
38 
50 
58 
        Coachella Vly
67 
100 
101 
        E San Bernardino
68 
132 
156 
        E San Fernando Vly
50 
46 
101 
        E San Gabriel V-1
68 
67 
84 
        E San Gabriel V-2
68 
59 
84 
        East Riverside CO
46 
50 
 
        Hemet/San Jacinto
67 
67 
84 
        Hesperia
67 
67 
49 
        Lake Elsinore
66 
100 
74 
        Metro Riverside CO
72 
132 
122 
        N Coastal Orange
42 
38 
69 
        NW Coastal LA
46 
46 
69 
        NW San Bernardino
70 
100 
101 
        Norco/Corona
67 
67 
122 
        North Orange CO
46 
38 
58 
        Perris Vly
66 
100 
84 
        Phelan
46 
50 
50 
        Pomona Walnut Vly
68 
67 
87 
        S Central LA CO
38 
33 
46 
        S San Gabriel Vly
46 
59 
 
        SW Coastal LA
46 
37 
69 
        SW San Bernardino
72 
68 
101 
        Saddleback Vly
46 
46 
58 
        San Gabriel Mts
67 
67 
150 
        Santa Clarita Vly
100 
132 
150 
        South Coastal LA
50 
38 
69 
        Southeast LA CO
42 
55 
58 
        Temecula Vly
50 
67 
84 
        Trona
50 
46 
49 
        Twentynine Palms
67 
67 
50 
        Victorville
46 
50 
44 
        W San Bernardino M
46 
100 
136 
        W San Fernando Vly
66 
67 
101 
        W San Gabriel Vly
63 
67 
75 
Mammoth Lakes
aqi not available
aqi not available
16 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
60 
Mono Lake
aqi not available
aqi not available
11 
Monterey Bay Area
        Carmel Valley
Good
Good
55 
        Davenport
Good
Good
 
        Hollister
Good
Good
31 
        King City
Good
Good
43 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
45 
        Salinas
Good
Good
55 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
53 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
23 
Paradise
Moderate
aqi not available
80 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
24 
Quincy
aqi not available
aqi not available
32 
Red Bluff
aqi not available
aqi not available
 
Redding
aqi not available
89 
87 
Sacramento Area
        Arden Arcade-Del Paso Manor
101 
87 
93 
        Auburn
115 
93 
97 
        Colfax
115 
93 
77 
        Cool
108 
87 
80 
        Davis
67 
54 
60 
        Elk Grove
101 
87 
58 
        Folsom
101 
87 
93 
        Lincoln
115 
93 
74 
        Natomas
101 
87 
 
        North Highlands
101 
87 
87 
        Placerville
108 
87 
105 
        Rio Vista
67 
54 
65 
        Roseville-Rocklin
115 
93 
61 
        Sacramento
101 
87 
108 
        Sloughhouse
101 
87 
119 
        Vacaville
67 
54 
54 
        Woodland
67 
54 
71 
San Diego Area
        San Diego Coast
Moderate
Moderate
56 
        San Diego Foothills
Good
Good
67 
        San Diego Mesa and Inland Valley
Moderate
Moderate
56 
San Francisco Area
        Concord
55 
61 
80 
        Fairfield
55 
61 
35 
        Fremont
50 
53 
88 
        Livermore
55 
61 
97 
        Napa
57 
53 
51 
        Oakland
57 
63 
63 
        Redwood City
50 
53 
88 
        San Francisco
57 
63 
54 
        San Jose
55 
61 
86 
        San Rafael
57 
53 
32 
        Santa Rosa
57 
53 
20 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
84 
119 
100 
        Fresno
64 
100 
150 
        Hanford
67 
93 
77 
        Madera
50 
84 
67 
        Merced
48 
80 
69 
        Modesto
47 
84 
97 
        Stockton
44 
77 
71 
        Visalia
64 
108 
140 
San Luis Obispo County
        Atascadero
42 
33 
31 
        Carrizo Plains
51 
55 
64 
        Morro Bay
31 
28 
26 
        Nipomo
50 
56 
47 
        Paso Robles
43 
33 
33 
        Red Hills
51 
53 
58 
        San Luis Obispo
44 
36 
31 
Santa Barbara County
        Carpinteria
Good
Good
24 
        Gaviota Coast
Good
Good
31 
        Goleta
Good
Good
50 
        Lompoc
Good
Good
31 
        Paradise Road
Good
Good
31 
        Santa Barbara
Good
Good
32 
        Santa Maria
Good
Good
26 
        Santa Ynez
Good
Good
31 
Santa Rosa Rancheria
aqi not available
aqi not available
72 
Sequoia/Kings Canyon National Parks
97 
87 
150 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
39 
Truckee
aqi not available
aqi not available
52 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
 
Ventura County Area
        Ojai
50 
55 
42 
        Oxnard
60 
50 
52 
        Piru
60 
60 
67 
        Simi Valley
60 
60 
63 
        Thousand Oaks
50 
55 
53 
Western Nevada County
120 
120 
71 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
43 
46 
103 
Yuba City/Marysville
Moderate
Moderate
101 
Yucca Vly
67 
67 
 
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.