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_20190915_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.
 - 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.
 - 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 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 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 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
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 Air Resources 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
Sun
Sep 15
Mon
Sep 16
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
43 
Brawley
51
108
63 
Calexico
51
108
56 
Chester
aqi not available
aqi not available
27 
Chico
Good
aqi not available
33 
Death Valley National Park
37
aqi not available
47 
El Centro
51
108
98 
Eureka
aqi not available
aqi not available
11 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
15 
Great Basin Air District
aqi not available
aqi not available
36 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
47 
Imperial Valley
51
108
98 
Indio - Twenty Nine Palms Reservation
aqi not available
aqi not available
40 
Joshua Tree National Park
aqi not available
aqi not available
93 
La Grange
aqi not available
aqi not available
 
Lassen Volcanic National Park
61
aqi not available
38 
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
 
Los Angeles Area
        Antelope Vly
67
aqi not available
36 
        Anza Vly
46
aqi not available
48 
        Banning
90
aqi not available
55 
        Barstow
44
aqi not available
41 
        Big Bear Lake
61
aqi not available
 
        C San Bernardino M
97
aqi not available
101 
        C San Bernardino-1
133
aqi not available
52 
        C San Bernardino-2
105
aqi not available
52 
        Capistrano Vly
90
aqi not available
26 
        Central Coastal
97
aqi not available
26 
        Central LA CO
97
aqi not available
66 
        Central Orange-1
105
aqi not available
63 
        Central Orange-2
105
aqi not available
63 
        Coachella Vly
61
aqi not available
49 
        E San Bernardino
151
aqi not available
77 
        E San Fernando Vly
118
aqi not available
66 
        E San Gabriel V-1
118
aqi not available
46 
        E San Gabriel V-2
118
aqi not available
46 
        East Riverside CO
67
aqi not available
 
        Hemet/San Jacinto
58
aqi not available
48 
        Hesperia
84
aqi not available
51 
        Lake Elsinore
64
aqi not available
35 
        Metro Riverside CO
108
aqi not available
67 
        N Coastal Orange
84
aqi not available
40 
        NW Coastal LA
78
aqi not available
40 
        NW San Bernardino
101
aqi not available
 
        Norco/Corona
115
aqi not available
67 
        North Orange CO
129
aqi not available
63 
        Perris Vly
87
aqi not available
48 
        Phelan
61
aqi not available
97 
        Pomona Walnut Vly
122
aqi not available
        S Central LA CO
78
aqi not available
19 
        S San Gabriel Vly
140
aqi not available
 
        SW Coastal LA
80
aqi not available
40 
        SW San Bernardino
129
aqi not available
        Saddleback Vly
108
aqi not available
63 
        San Gabriel Mts
112
aqi not available
46 
        Santa Clarita Vly
143
aqi not available
38 
        South Coastal LA
61
aqi not available
40 
        Southeast LA CO
112
aqi not available
63 
        Temecula Vly
54
aqi not available
48 
        Trona
49
aqi not available
40 
        Twentynine Palms
67
aqi not available
41 
        Victorville
67
aqi not available
45 
        W San Bernardino M
90
aqi not available
101 
        W San Fernando Vly
118
aqi not available
66 
        W San Gabriel Vly
118
aqi not available
60 
Mammoth Lakes
aqi not available
aqi not available
27 
Markleeville
aqi not available
aqi not available
 
Mendocino County
aqi not available
aqi not available
 
Mono Lake
aqi not available
aqi not available
13 
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
Moderate
Good
 
        Salinas
Good
Good
26 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
20 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Niland
51
108
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
36 
Paradise
Good
aqi not available
50 
Point Arena
aqi not available
aqi not available
15 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
55 
Quincy
aqi not available
aqi not available
22 
Red Bluff
aqi not available
aqi not available
29 
Redding
aqi not available
aqi not available
30 
Sacramento Area
        Arden Arcade-Del Paso Manor
58
37
24 
        Auburn
61
42
49 
        Colfax
61
42
45 
        Cool
61
42
44 
        Davis
44
34
20 
        Elk Grove
58
37
20 
        Folsom
58
37
 
        Lincoln
61
42
21 
        Natomas
58
37
 
        North Highlands
58
37
20 
        Placerville
61
42
71 
        Rio Vista
44
34
15 
        Roseville-Rocklin
61
42
30 
        Sacramento
58
37
 
        Sloughhouse
58
37
23 
        Vacaville
44
34
28 
        Woodland
44
34
14 
San Diego Area
        San Diego Coast
Moderate
Moderate
45 
        San Diego Foothills
Moderate
Moderate
64 
        San Diego Mesa and Inland Valley
Moderate
Moderate
96 
San Francisco Area
        Concord
49
50
26 
        Fairfield
49
50
25 
        Fremont
42
46
27 
        Livermore
49
50
25 
        Napa
42
46
38 
        Oakland
46
53
43 
        Redwood City
42
46
27 
        San Francisco
46
53
18 
        San Jose
47
48
29 
        San Rafael
42
46
24 
        Santa Rosa
42
46
29 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
97
aqi not available
59 
        Fresno
77
aqi not available
57 
        Hanford
64
aqi not available
17 
        Madera
54
aqi not available
22 
        Merced
58
aqi not available
46 
        Modesto
49
aqi not available
29 
        Stockton
45
aqi not available
18 
        Visalia
67
aqi not available
60 
San Luis Obispo County
        Atascadero
49
40
20 
        Carrizo Plains
51
42
22 
        Morro Bay
38
36
26 
        Nipomo
47
52
23 
        Paso Robles
50
40
20 
        Red Hills
50
42
45 
        San Luis Obispo
46
36
31 
Santa Barbara County
        Carpinteria
Moderate
Good
28 
        Gaviota Coast
Moderate
Good
58 
        Goleta
Good
Good
28 
        Lompoc
Good
Good
25 
        Paradise Road
Moderate
Good
36 
        Santa Barbara
Good
Good
38 
        Santa Maria
Good
Good
15 
        Santa Ynez
Moderate
Good
20 
Santa Rosa Rancheria
aqi not available
aqi not available
70 
Sequoia/Kings Canyon National Parks
77
aqi not available
58 
South Lake Tahoe
aqi not available
aqi not available
12 
Tahoe City area
aqi not available
aqi not available
Truckee
aqi not available
aqi not available
61 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
39 
Ukiah
aqi not available
aqi not available
15 
Ventura County Area
        Ojai
95
75
31 
        Oxnard
85
55
 
        Piru
70
55
36 
        Simi Valley
100
65
43 
        Thousand Oaks
90
65
47 
Western Nevada County
55
40
84 
Westmorland
51
108
62 
Willits
aqi not available
aqi not available
15 
Willows
aqi not available
aqi not available
38 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
84
aqi not available
54 
Yreka
aqi not available
aqi not available
17 
Yuba City/Marysville
71
aqi not available
33 
Yucca Vly
71
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.