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_20180716_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
Jul 16
Tue
Jul 17
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
90 
Bishop Paiute Tribe
aqi not available
aqi not available
37 
Chester
aqi not available
aqi not available
21 
Chico
Moderate
Moderate
55 
Death Valley National Park
74
67
58 
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
90 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
53 
Imperial Valley
aqi not available
aqi not available
100 
Joshua Tree National Park
aqi not available
aqi not available
61 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
54
51
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
31 
Los Angeles Area
        Antelope Vly
50
67
67 
        Anza Vly
67
46
77 
        Banning
132
100
87 
        Barstow
46
53
19 
        Big Bear Lake
100
100
 
        C San Bernardino M
161
132
97 
        C San Bernardino-1
100
100
80 
        C San Bernardino-2
132
100
80 
        Capistrano Vly
46
42
39 
        Central Coastal
46
55
39 
        Central LA CO
50
55
64 
        Central Orange-1
46
42
46 
        Central Orange-2
37
42
46 
        Coachella Vly
132
100
84 
        E San Bernardino
132
100
97 
        E San Fernando Vly
370
67
63 
        E San Gabriel V-1
233
63
71 
        E San Gabriel V-2
233
61
71 
        East Riverside CO
46
55
 
        Hemet/San Jacinto
100
67
122 
        Hesperia
67
67
101 
        Lake Elsinore
67
67
77 
        Metro Riverside CO
100
67
108 
        N Coastal Orange
37
42
40 
        NW Coastal LA
67
38
40 
        NW San Bernardino
200
100
80 
        Norco/Corona
100
67
90 
        North Orange CO
67
42
46 
        Perris Vly
100
67
122 
        Phelan
46
100
97 
        Pomona Walnut Vly
100
61
54 
        S Central LA CO
180
67
35 
        S San Gabriel Vly
400
46
 
        SW Coastal LA
100
37
40 
        SW San Bernardino
100
67
80 
        Saddleback Vly
67
37
46 
        San Gabriel Mts
100
67
84 
        Santa Clarita Vly
220
132
84 
        South Coastal LA
46
38
40 
        Southeast LA CO
53
57
46 
        Temecula Vly
50
53
77 
        Trona
46
53
87 
        Twentynine Palms
70
67
19 
        Victorville
46
55
108 
        W San Bernardino M
90
132
97 
        W San Fernando Vly
220
67
63 
        W San Gabriel Vly
120
50
64 
Mammoth Lakes
aqi not available
aqi not available
17 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
37 
Mono Lake
aqi not available
aqi not available
24 
Monterey Bay Area
        Carmel Valley
Good
Good
23 
        Davenport
Good
Good
 
        Hollister
Good
Good
28 
        King City
Good
Good
38 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
40
42
31 
        Salinas
Good
Good
38 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
20 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
48 
Paradise
Moderate
Moderate
49 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
17 
Quincy
aqi not available
aqi not available
40 
Red Bluff
Good
Good
51 
Redding
aqi not available
aqi not available
64 
Sacramento Area
        Arden Arcade-Del Paso Manor
100
108
49 
        Auburn
105
119
74 
        Colfax
105
119
40 
        Cool
105
115
77 
        Davis
71
84
48 
        Elk Grove
100
108
37 
        Folsom
100
108
46 
        Lincoln
105
119
 
        Natomas
100
108
 
        North Highlands
100
108
74 
        Placerville
105
115
77 
        Rio Vista
71
84
18 
        Roseville-Rocklin
105
119
58 
        Sacramento
100
108
35 
        Sloughhouse
100
108
40 
        Vacaville
71
84
45 
        Woodland
71
84
43 
San Diego Area
        San Diego Coast
Good
Good
29 
        San Diego Foothills
Moderate
Moderate
67 
        San Diego Mesa and Inland Valley
Moderate
Moderate
34 
San Francisco Area
        Concord
67
84
63 
        Fairfield
67
84
35 
        Fremont
44
50
55 
        Livermore
67
84
47 
        Napa
43
47
 
        Oakland
53
57
28 
        Redwood City
44
50
55 
        San Francisco
53
57
25 
        San Jose
74
87
58 
        San Rafael
43
47
27 
        Santa Rosa
43
47
22 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
100
Moderate
67 
        Fresno
87
Moderate
93 
        Hanford
67
Moderate
44 
        Madera
64
Moderate
46 
        Merced
64
Moderate
43 
        Modesto
58
Moderate
44 
        Stockton
48
Good
45 
        Visalia
97
Moderate
101 
San Luis Obispo County
        Atascadero
32
44
31 
        Carrizo Plains
47
50
45 
        Morro Bay
25
27
23 
        Nipomo
47
49
25 
        Paso Robles
36
44
38 
        Red Hills
47
50
42 
        San Luis Obispo
24
28
23 
Santa Barbara County
        Carpinteria
Good
Good
 
        Gaviota Coast
Good
Good
27 
        Goleta
Good
Good
28 
        Lompoc
Good
Good
26 
        Paradise Road
Good
Good
 
        Santa Barbara
Good
Good
27 
        Santa Maria
Good
Good
22 
        Santa Ynez
Good
Good
32 
Santa Rosa Rancheria
aqi not available
aqi not available
48 
Sequoia/Kings Canyon National Parks
71
84
74 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
41 
Truckee
aqi not available
aqi not available
24 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
46 
Ventura County Area
        Ojai
50
50
39 
        Oxnard
35
35
78 
        Piru
50
55
52 
        Simi Valley
50
55
77 
        Thousand Oaks
45
50
47 
Western Nevada County
80
80
44 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
35 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
44
46
112 
Yreka
aqi not available
aqi not available
57 
Yuba City/Marysville
80
101
62 
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.