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_20180618_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
Mon
Jun 18
Tue
Jun 19
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
58 
Bishop Paiute Tribe
aqi not available
aqi not available
41 
Chester
aqi not available
aqi not available
17 
Chico
Good
Good
43 
Death Valley National Park
39
38
54 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
Great Basin Air District
aqi not available
aqi not available
58 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
38 
Imperial Valley
64
101
71 
Joshua Tree National Park
aqi not available
aqi not available
80 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
37
38
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
13 
Los Angeles Area
        Antelope Vly
46
46
74 
        Anza Vly
46
46
50 
        Banning
59
67
93 
        Barstow
46
46
77 
        Big Bear Lake
67
67
 
        C San Bernardino M
67
132
87 
        C San Bernardino-1
70
67
112 
        C San Bernardino-2
59
100
112 
        Capistrano Vly
33
37
44 
        Central Coastal
33
46
44 
        Central LA CO
42
46
64 
        Central Orange-1
38
37
38 
        Central Orange-2
38
42
38 
        Coachella Vly
70
100
115 
        E San Bernardino
57
67
108 
        E San Fernando Vly
57
37
64 
        E San Gabriel V-1
53
50
56 
        E San Gabriel V-2
55
50
56 
        East Riverside CO
46
46
 
        Hemet/San Jacinto
53
67
97 
        Hesperia
46
46
87 
        Lake Elsinore
67
67
50 
        Metro Riverside CO
67
100
80 
        N Coastal Orange
38
50
45 
        NW Coastal LA
33
37
45 
        NW San Bernardino
68
70
77 
        Norco/Corona
63
67
80 
        North Orange CO
42
46
44 
        Perris Vly
59
67
97 
        Phelan
67
67
 
        Pomona Walnut Vly
50
50
46 
        S Central LA CO
42
37
35 
        S San Gabriel Vly
42
46
 
        SW Coastal LA
38
37
45 
        SW San Bernardino
61
67
77 
        Saddleback Vly
29
46
44 
        San Gabriel Mts
46
50
56 
        Santa Clarita Vly
57
67
48 
        South Coastal LA
38
37
45 
        Southeast LA CO
38
46
38 
        Temecula Vly
42
46
50 
        Trona
46
46
71 
        Twentynine Palms
67
67
77 
        Victorville
46
46
71 
        W San Bernardino M
67
67
87 
        W San Fernando Vly
57
46
64 
        W San Gabriel Vly
46
67
47 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
31 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
33 
        Davenport
Good
Good
 
        Hollister
Good
Good
32 
        King City
Good
Good
65 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
45
Good
40 
        Salinas
Good
Good
65 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
33 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
33 
Paradise
Moderate
Moderate
54 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
16 
Quincy
aqi not available
aqi not available
11 
Red Bluff
Good
Good
48 
Redding
55
aqi not available
57 
Sacramento Area
        Arden Arcade-Del Paso Manor
71
100
53 
        Auburn
77
101
52 
        Colfax
77
101
49 
        Cool
77
101
49 
        Davis
50
67
44 
        Elk Grove
71
100
43 
        Folsom
71
100
47 
        Lincoln
77
101
 
        Natomas
71
100
 
        North Highlands
71
100
45 
        Placerville
77
101
50 
        Rio Vista
50
67
46 
        Roseville-Rocklin
77
101
42 
        Sacramento
71
100
46 
        Sloughhouse
71
100
49 
        Vacaville
50
67
38 
        Woodland
50
67
45 
San Diego Area
        San Diego Coast
Good
Good
34 
        San Diego Foothills
Good
Moderate
44 
        San Diego Mesa and Inland Valley
Good
Good
38 
San Francisco Area
        Concord
46
61
57 
        Fairfield
46
61
45 
        Fremont
42
48
55 
        Livermore
46
61
46 
        Napa
42
46
 
        Oakland
50
50
52 
        Redwood City
42
48
55 
        San Francisco
50
50
35 
        San Jose
44
61
50 
        San Rafael
42
46
38 
        Santa Rosa
42
46
33 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
50
93
50 
        Fresno
49
90
61 
        Hanford
45
61
49 
        Madera
45
50
49 
        Merced
41
47
45 
        Modesto
44
49
48 
        Stockton
41
48
39 
        Visalia
48
58
71 
San Luis Obispo County
        Atascadero
38
42
57 
        Carrizo Plains
38
51
42 
        Morro Bay
37
38
30 
        Nipomo
57
53
99 
        Paso Robles
39
42
66 
        Red Hills
38
48
44 
        San Luis Obispo
33
41
32 
Santa Barbara County
        Carpinteria
Good
Good
35 
        Gaviota Coast
Good
Good
34 
        Goleta
Good
Good
38 
        Lompoc
Good
Good
33 
        Paradise Road
Good
Good
 
        Santa Barbara
Good
Good
38 
        Santa Maria
Good
Good
42 
        Santa Ynez
Good
Good
31 
Santa Rosa Rancheria
aqi not available
aqi not available
50 
Sequoia/Kings Canyon National Parks
43
61
63 
South Lake Tahoe
aqi not available
aqi not available
Tahoe City area
aqi not available
aqi not available
Truckee
aqi not available
aqi not available
20 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
45 
Ventura County Area
        Ojai
50
55
36 
        Oxnard
45
50
31 
        Piru
45
55
39 
        Simi Valley
45
55
40 
        Thousand Oaks
45
55
36 
Western Nevada County
50
55
41 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
44 
Yankee Hill
Good
Good
 
Yosemite National Park
40
41
34 
Yreka
aqi not available
aqi not available
40 
Yuba City/Marysville
43
50
 
Yucca Vly
46
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.