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_20180718_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
Wed
Jul 18
Thu
Jul 19
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
93 
Bishop Paiute Tribe
aqi not available
aqi not available
74 
Chester
aqi not available
aqi not available
 
Chico
aqi not available
aqi not available
48 
Death Valley National Park
97
aqi not available
58 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
10 
Great Basin Air District
aqi not available
aqi not available
93 
Greeley Hill
aqi not available
aqi not available
 
Gridley
aqi not available
aqi not available
51 
Imperial Valley
aqi not available
aqi not available
35 
Joshua Tree National Park
aqi not available
aqi not available
36 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
54
aqi not available
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
44 
Los Angeles Area
        Antelope Vly
100
132
64 
        Anza Vly
67
67
38 
        Banning
132
161
62 
        Barstow
67
53
108 
        Big Bear Lake
132
132
 
        C San Bernardino M
161
161
64 
        C San Bernardino-1
132
132
77 
        C San Bernardino-2
132
161
77 
        Capistrano Vly
46
55
30 
        Central Coastal
55
55
30 
        Central LA CO
57
57
75 
        Central Orange-1
46
53
30 
        Central Orange-2
50
53
30 
        Coachella Vly
132
68
37 
        E San Bernardino
132
161
25 
        E San Fernando Vly
67
68
75 
        E San Gabriel V-1
100
100
63 
        E San Gabriel V-2
100
132
63 
        East Riverside CO
57
55
 
        Hemet/San Jacinto
100
132
38 
        Hesperia
100
67
51 
        Lake Elsinore
100
132
31 
        Metro Riverside CO
100
161
65 
        N Coastal Orange
55
55
37 
        NW Coastal LA
46
46
37 
        NW San Bernardino
100
132
77 
        Norco/Corona
67
132
65 
        North Orange CO
53
57
30 
        Perris Vly
100
161
38 
        Phelan
100
132
74 
        Pomona Walnut Vly
67
100
19 
        S Central LA CO
38
57
21 
        S San Gabriel Vly
46
67
 
        SW Coastal LA
46
46
37 
        SW San Bernardino
100
100
77 
        Saddleback Vly
46
50
30 
        San Gabriel Mts
100
100
63 
        Santa Clarita Vly
100
132
56 
        South Coastal LA
38
42
37 
        Southeast LA CO
57
59
30 
        Temecula Vly
55
67
38 
        Trona
67
67
71 
        Twentynine Palms
100
100
108 
        Victorville
57
55
77 
        W San Bernardino M
132
132
77 
        W San Fernando Vly
67
68
75 
        W San Gabriel Vly
100
67
70 
Mammoth Lakes
aqi not available
aqi not available
53 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
37 
Mono Lake
aqi not available
aqi not available
26 
Monterey Bay Area
        Carmel Valley
Good
Good
17 
        Davenport
Good
Good
 
        Hollister
Good
Good
13 
        King City
Good
Good
10 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
24 
        Salinas
Good
Good
24 
        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
58 
Paradise
aqi not available
aqi not available
47 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
 
Red Bluff
Good
Moderate
26 
Redding
aqi not available
aqi not available
60 
Sacramento Area
        Arden Arcade-Del Paso Manor
126
108
48 
        Auburn
133
119
56 
        Colfax
133
119
52 
        Cool
133
122
47 
        Davis
84
67
30 
        Elk Grove
126
108
36 
        Folsom
126
108
35 
        Lincoln
133
119
 
        Natomas
126
108
 
        North Highlands
126
108
32 
        Placerville
133
122
58 
        Rio Vista
84
67
35 
        Roseville-Rocklin
133
119
51 
        Sacramento
126
108
30 
        Sloughhouse
126
108
29 
        Vacaville
84
67
39 
        Woodland
84
67
28 
San Diego Area
        San Diego Coast
Good
aqi not available
27 
        San Diego Foothills
Moderate
aqi not available
42 
        San Diego Mesa and Inland Valley
Good
aqi not available
63 
San Francisco Area
        Concord
84
58
61 
        Fairfield
84
58
46 
        Fremont
44
46
68 
        Livermore
84
58
46 
        Napa
38
27
 
        Oakland
50
46
38 
        Redwood City
44
46
68 
        San Francisco
50
46
 
        San Jose
77
51
77 
        San Rafael
38
27
22 
        Santa Rosa
38
27
17 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
108
Unhealthy for Sensitive Groups
77 
        Fresno
126
Unhealthy for Sensitive Groups
55 
        Hanford
100
Moderate
38 
        Madera
100
Moderate
35 
        Merced
93
Moderate
44 
        Modesto
100
Moderate
49 
        Stockton
74
Moderate
53 
        Visalia
122
Unhealthy for Sensitive Groups
50 
San Luis Obispo County
        Atascadero
43
42
29 
        Carrizo Plains
60
54
58 
        Morro Bay
25
32
20 
        Nipomo
29
32
35 
        Paso Robles
47
44
32 
        Red Hills
52
51
42 
        San Luis Obispo
27
30
20 
Santa Barbara County
        Carpinteria
Good
Good
19 
        Gaviota Coast
Good
Good
26 
        Goleta
Good
Good
33 
        Lompoc
Good
Good
26 
        Paradise Road
Good
Good
25 
        Santa Barbara
Good
Good
33 
        Santa Maria
Good
Good
16 
        Santa Ynez
Good
Good
23 
Santa Rosa Rancheria
aqi not available
aqi not available
55 
Sequoia/Kings Canyon National Parks
84
aqi not available
84 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
29 
Truckee
aqi not available
aqi not available
32 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
44 
Ventura County Area
        Ojai
45
50
48 
        Oxnard
45
45
30 
        Piru
50
50
55 
        Simi Valley
60
60
58 
        Thousand Oaks
50
50
54 
Western Nevada County
80
80
54 
Willits
aqi not available
aqi not available
 
Willows
Good
aqi not available
35 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
51
aqi not available
184 
Yreka
aqi not available
aqi not available
101 
Yuba City/Marysville
95
95
55 
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.