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_20180720_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
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
Jul 20
Sat
Jul 21
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
45 
Bishop Paiute Tribe
aqi not available
aqi not available
20 
Chester
aqi not available
aqi not available
28 
Chico
Moderate
Moderate
48 
Death Valley National Park
44
aqi not available
46 
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
45 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
46 
Imperial Valley
aqi not available
aqi not available
47 
Joshua Tree National Park
aqi not available
aqi not available
44 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
58
aqi not available
44 
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
38 
Los Angeles Area
        Antelope Vly
132
132
64 
        Anza Vly
67
67
48 
        Banning
132
100
84 
        Barstow
50
100
97 
        Big Bear Lake
100
132
 
        C San Bernardino M
161
161
53 
        C San Bernardino-1
132
132
70 
        C San Bernardino-2
132
132
70 
        Capistrano Vly
46
46
 
        Central Coastal
46
55
 
        Central LA CO
55
57
69 
        Central Orange-1
42
46
42 
        Central Orange-2
46
38
42 
        Coachella Vly
67
100
71 
        E San Bernardino
132
161
54 
        E San Fernando Vly
100
67
69 
        E San Gabriel V-1
70
100
43 
        E San Gabriel V-2
100
100
43 
        East Riverside CO
53
100
 
        Hemet/San Jacinto
100
100
77 
        Hesperia
67
67
50 
        Lake Elsinore
132
132
48 
        Metro Riverside CO
132
100
57 
        N Coastal Orange
38
37
37 
        NW Coastal LA
57
57
37 
        NW San Bernardino
100
132
70 
        Norco/Corona
67
100
53 
        North Orange CO
50
50
42 
        Perris Vly
132
100
77 
        Phelan
100
100
50 
        Pomona Walnut Vly
67
67
33 
        S Central LA CO
37
57
27 
        S San Gabriel Vly
46
67
 
        SW Coastal LA
38
42
37 
        SW San Bernardino
67
100
70 
        Saddleback Vly
46
46
42 
        San Gabriel Mts
67
100
55 
        Santa Clarita Vly
100
100
55 
        South Coastal LA
38
42
37 
        Southeast LA CO
53
46
42 
        Temecula Vly
67
67
48 
        Trona
67
46
49 
        Twentynine Palms
50
67
97 
        Victorville
53
100
64 
        W San Bernardino M
100
100
70 
        W San Fernando Vly
100
67
69 
        W San Gabriel Vly
67
67
57 
Mammoth Lakes
aqi not available
aqi not available
15 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
50 
Mono Lake
aqi not available
aqi not available
13 
Monterey Bay Area
        Carmel Valley
Good
Good
20 
        Davenport
Good
Good
 
        Hollister
Good
Good
23 
        King City
Good
Good
31 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
41 
        Salinas
Good
Good
41 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
23 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
45 
Paradise
Moderate
Moderate
50 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
45 
Quincy
aqi not available
aqi not available
45 
Red Bluff
Good
Moderate
43 
Redding
aqi not available
aqi not available
90 
Sacramento Area
        Arden Arcade-Del Paso Manor
101
101
42 
        Auburn
115
108
50 
        Colfax
115
108
60 
        Cool
115
108
51 
        Davis
54
51
51 
        Elk Grove
101
101
37 
        Folsom
101
101
44 
        Lincoln
115
108
 
        Natomas
101
101
 
        North Highlands
101
101
37 
        Placerville
115
108
64 
        Rio Vista
54
51
33 
        Roseville-Rocklin
115
108
52 
        Sacramento
101
101
32 
        Sloughhouse
101
101
38 
        Vacaville
54
51
39 
        Woodland
54
51
50 
San Diego Area
        San Diego Coast
Good
Good
27 
        San Diego Foothills
Moderate
Moderate
38 
        San Diego Mesa and Inland Valley
Good
Good
49 
San Francisco Area
        Concord
57
44
58 
        Fairfield
57
44
35 
        Fremont
46
38
68 
        Livermore
57
44
46 
        Napa
38
30
 
        Oakland
50
53
55 
        Redwood City
46
38
68 
        San Francisco
50
53
 
        San Jose
55
41
47 
        San Rafael
38
30
31 
        Santa Rosa
38
30
26 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
97
Moderate
64 
        Fresno
122
Unhealthy for Sensitive Groups
87 
        Hanford
80
Moderate
 
        Madera
80
Moderate
 
        Merced
93
Moderate
 
        Modesto
84
Moderate
50 
        Stockton
67
Moderate
54 
        Visalia
126
Unhealthy for Sensitive Groups
108 
San Luis Obispo County
        Atascadero
46
47
45 
        Carrizo Plains
69
72
47 
        Morro Bay
28
28
27 
        Nipomo
31
34
31 
        Paso Robles
47
48
49 
        Red Hills
65
70
46 
        San Luis Obispo
32
30
29 
Santa Barbara County
        Carpinteria
Good
Good
29 
        Gaviota Coast
Good
Good
28 
        Goleta
Good
Good
43 
        Lompoc
Good
Good
28 
        Paradise Road
Good
Good
36 
        Santa Barbara
Good
Good
33 
        Santa Maria
Good
Good
33 
        Santa Ynez
Good
Good
37 
Santa Rosa Rancheria
aqi not available
aqi not available
64 
Sequoia/Kings Canyon National Parks
64
aqi not available
74 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
89 
Truckee
aqi not available
aqi not available
96 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
100 
Ventura County Area
        Ojai
50
55
43 
        Oxnard
35
35
24 
        Piru
50
55
43 
        Simi Valley
70
75
42 
        Thousand Oaks
45
45
32 
Western Nevada County
90
85
58 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
42 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
54
aqi not available
161 
Yreka
aqi not available
aqi not available
180 
Yuba City/Marysville
95
74
58 
Yucca Vly
53
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.