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_20190822_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
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
Thu
Aug 22
Fri
Aug 23
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
33 
Brawley
51
52
33 
Calexico
51
52
80 
Chester
aqi not available
aqi not available
Chico
Good
Good
33 
Death Valley National Park
61
77
64 
El Centro
51
52
58 
Eureka
aqi not available
aqi not available
26 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
17 
Great Basin Air District
aqi not available
aqi not available
43 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
24 
Imperial Valley
51
52
80 
Indio - Twenty Nine Palms Reservation
aqi not available
aqi not available
45 
Joshua Tree National Park
aqi not available
aqi not available
100 
La Grange
aqi not available
aqi not available
 
Lassen Volcanic National Park
40
50
37 
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
19 
Los Angeles Area
        Antelope Vly
100
84
126 
        Anza Vly
100
77
90 
        Banning
97
105
136 
        Barstow
108
51
112 
        Big Bear Lake
105
136
 
        C San Bernardino M
154
118
172 
        C San Bernardino-1
156
151
187 
        C San Bernardino-2
156
151
187 
        Capistrano Vly
61
42
44 
        Central Coastal
55
40
44 
        Central LA CO
61
50
105 
        Central Orange-1
50
42
52 
        Central Orange-2
50
42
52 
        Coachella Vly
77
51
122 
        E San Bernardino
143
154
209 
        E San Fernando Vly
67
57
105 
        E San Gabriel V-1
108
129
108 
        E San Gabriel V-2
108
133
108 
        East Riverside CO
74
45
 
        Hemet/San Jacinto
90
71
140 
        Hesperia
126
100
122 
        Lake Elsinore
71
49
90 
        Metro Riverside CO
161
115
119 
        N Coastal Orange
39
31
45 
        NW Coastal LA
80
57
45 
        NW San Bernardino
140
133
 
        Norco/Corona
147
97
119 
        North Orange CO
64
50
52 
        Perris Vly
118
112
140 
        Phelan
112
100
133 
        Pomona Walnut Vly
115
101
49 
        S Central LA CO
70
46
37 
        S San Gabriel Vly
77
71
 
        SW Coastal LA
82
53
45 
        SW San Bernardino
136
126
49 
        Saddleback Vly
61
47
52 
        San Gabriel Mts
118
97
166 
        Santa Clarita Vly
129
71
166 
        South Coastal LA
42
36
45 
        Southeast LA CO
59
46
52 
        Temecula Vly
71
50
90 
        Trona
77
84
97 
        Twentynine Palms
74
45
112 
        Victorville
112
80
112 
        W San Bernardino M
136
136
172 
        W San Fernando Vly
87
53
105 
        W San Gabriel Vly
84
77
63 
Mammoth Lakes
aqi not available
aqi not available
18 
Markleeville
aqi not available
aqi not available
 
Mendocino County
aqi not available
aqi not available
 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
 
        Davenport
Good
Good
 
        Hollister
Moderate
Moderate
 
        King City
Good
Moderate
 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Moderate
Moderate
 
        Salinas
Good
Good
19 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
20 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Niland
51
52
44 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
35 
Paradise
Good
Good
33 
Point Arena
aqi not available
aqi not available
17 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
31 
Quincy
aqi not available
aqi not available
Red Bluff
Moderate
aqi not available
41 
Redding
aqi not available
aqi not available
44 
Sacramento Area
        Arden Arcade-Del Paso Manor
93
105
35 
        Auburn
93
115
38 
        Colfax
93
115
39 
        Cool
93
108
31 
        Davis
51
74
30 
        Elk Grove
93
105
37 
        Folsom
93
105
 
        Lincoln
93
115
15 
        Natomas
93
105
 
        North Highlands
93
105
31 
        Placerville
93
108
41 
        Rio Vista
51
74
28 
        Roseville-Rocklin
93
115
31 
        Sacramento
93
105
31 
        Sloughhouse
93
105
35 
        Vacaville
51
74
39 
        Woodland
51
74
35 
San Diego Area
        San Diego Coast
Good
Good
52 
        San Diego Foothills
Moderate
Moderate
80 
        San Diego Mesa and Inland Valley
Moderate
Moderate
62 
San Francisco Area
        Concord
67
61
41 
        Fairfield
67
61
40 
        Fremont
48
45
27 
        Livermore
67
61
44 
        Napa
46
42
32 
        Oakland
53
50
48 
        Redwood City
48
45
27 
        San Francisco
53
50
32 
        San Jose
58
54
42 
        San Rafael
46
42
27 
        Santa Rosa
46
42
24 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
101
136
64 
        Fresno
100
100
64 
        Hanford
64
66
42 
        Madera
71
58
49 
        Merced
67
51
49 
        Modesto
74
49
45 
        Stockton
61
46
35 
        Visalia
77
77
55 
San Luis Obispo County
        Atascadero
46
48
37 
        Carrizo Plains
54
67
67 
        Morro Bay
36
37
19 
        Nipomo
52
36
23 
        Paso Robles
46
47
37 
        Red Hills
48
49
46 
        San Luis Obispo
36
38
21 
Santa Barbara County
        Carpinteria
Good
Good
51 
        Gaviota Coast
Good
Good
31 
        Goleta
Good
Good
40 
        Lompoc
Good
Good
24 
        Paradise Road
Good
Good
40 
        Santa Barbara
Good
Good
58 
        Santa Maria
Good
Good
23 
        Santa Ynez
Good
Good
29 
Santa Rosa Rancheria
aqi not available
aqi not available
54 
Sequoia/Kings Canyon National Parks
100
87
126 
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
46 
Ukiah
aqi not available
aqi not available
17 
Ventura County Area
        Ojai
65
60
58 
        Oxnard
45
45
39 
        Piru
60
55
77 
        Simi Valley
65
60
97 
        Thousand Oaks
45
45
54 
Western Nevada County
70
75
40 
Westmorland
51
52
36 
Willits
aqi not available
aqi not available
17 
Willows
aqi not available
aqi not available
13 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
49
48
48 
Yreka
aqi not available
aqi not available
38 
Yuba City/Marysville
44
80
34 
Yucca Vly
80
64
 
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.