California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170116_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: 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
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
Jan 16
Tue
Jan 17
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
12 
Bishop Paiute Tribe
aqi not available
aqi not available
12 
Chester
aqi not available
aqi not available
 
Chico
Moderate
Moderate
84 
Death Valley National Park
37 
34 
36 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
18 
Greeley Hill
aqi not available
aqi not available
Gridley
Moderate
Moderate
 
Imperial Valley
53 
46 
35 
Joshua Tree National Park
aqi not available
aqi not available
34 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
37 
36 
46 
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
29 
42 
43 
        Anza Vly
37 
38 
54 
        Banning
37 
53 
53 
        Barstow
28 
37 
34 
        Big Bear Lake
37 
37 
 
        C San Bernardino M
37 
46 
33 
        C San Bernardino-1
50 
50 
58 
        C San Bernardino-2
53 
50 
58 
        Capistrano Vly
37 
50 
35 
        Central Coastal
28 
46 
35 
        Central LA CO
72 
55 
77 
        Central Orange-1
28 
50 
50 
        Central Orange-2
29 
50 
50 
        Coachella Vly
38 
46 
27 
        E San Bernardino
50 
57 
29 
        E San Fernando Vly
25 
38 
77 
        E San Gabriel V-1
38 
42 
30 
        E San Gabriel V-2
42 
42 
30 
        East Riverside CO
29 
28 
34 
        Hemet/San Jacinto
37 
42 
54 
        Hesperia
29 
37 
37 
        Lake Elsinore
50 
46 
52 
        Metro Riverside CO
59 
55 
57 
        N Coastal Orange
33 
50 
54 
        NW Coastal LA
28 
50 
54 
        NW San Bernardino
50 
53 
58 
        Norco/Corona
42 
55 
50 
        North Orange CO
29 
50 
50 
        Perris Vly
42 
55 
30 
        Phelan
37 
37 
38 
        Pomona Walnut Vly
50 
55 
27 
        S Central LA CO
25 
46 
31 
        S San Gabriel Vly
28 
46 
 
        SW Coastal LA
38 
46 
54 
        SW San Bernardino
59 
61 
58 
        Saddleback Vly
37 
50 
50 
        San Gabriel Mts
38 
29 
34 
        Santa Clarita Vly
38 
37 
32 
        South Coastal LA
28 
38 
54 
        Southeast LA CO
33 
42 
50 
        Temecula Vly
37 
46 
54 
        Trona
29 
28 
35 
        Twentynine Palms
28 
37 
34 
        Victorville
29 
28 
39 
        W San Bernardino M
42 
37 
58 
        W San Fernando Vly
29 
50 
77 
        W San Gabriel Vly
29 
38 
61 
Mammoth Lakes
aqi not available
aqi not available
18 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
12 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
20 
        Davenport
Good
Good
 
        Hollister
Good
Good
30 
        King City
Good
Good
25 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
22 
        Salinas
Good
Good
39 
        San Lorenzo Valley
Moderate
Moderate
 
        Santa Cruz
Good
Good
39 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
Moderate
Moderate
 
Owens Lake
aqi not available
aqi not available
12 
Paradise
Good
Good
21 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
20 
Quincy
aqi not available
aqi not available
53 
Red Bluff
aqi not available
aqi not available
 
Redding
60 
60 
85 
Sacramento Area
        Arden Arcade-Del Paso Manor
105 
107 
72 
        Auburn
70 
76 
59 
        Colfax
70 
76 
22 
        Cool
aqi not available
aqi not available
 
        Davis
78 
80 
58 
        Elk Grove
105 
107 
54 
        Folsom
105 
107 
53 
        Lincoln
70 
76 
57 
        Natomas
105 
107 
24 
        North Highlands
105 
107 
 
        Placerville
aqi not available
aqi not available
10 
        Rio Vista
78 
80 
60 
        Roseville-Rocklin
70 
76 
48 
        Sacramento
105 
107 
72 
        Sloughhouse
105 
107 
40 
        Vacaville
78 
80 
70 
        Woodland
78 
80 
40 
San Diego Area
        San Diego Coast
Good
Good
39 
        San Diego Foothills
Good
Good
29 
        San Diego Mesa and Inland Valley
Moderate
Moderate
47 
San Francisco Area
        Concord
74 
102 
64 
        Fairfield
74 
102 
26 
        Fremont
59 
80 
48 
        Livermore
74 
102 
45 
        Napa
78 
102 
69 
        Oakland
76 
95 
72 
        Redwood City
59 
80 
48 
        San Francisco
76 
95 
62 
        San Jose
68 
91 
70 
        San Rafael
78 
102 
58 
        Santa Rosa
78 
102 
78 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
62 
Moderate
56 
        Fresno
62 
Moderate
21 
        Hanford
66 
Moderate
62 
        Madera
59 
Moderate
27 
        Merced
57 
Moderate
55 
        Modesto
66 
Moderate
60 
        Stockton
64 
Moderate
57 
        Visalia
64 
Moderate
61 
San Luis Obispo County
        Atascadero
44 
46 
68 
        Carrizo Plains
36 
35 
19 
        Morro Bay
36 
35 
20 
        Nipomo
35 
37 
46 
        Paso Robles
44 
46 
68 
        Red Hills
36 
35 
25 
        San Luis Obispo
38 
39 
28 
Santa Barbara County
        Carpinteria
Good
Good
36 
        Gaviota Coast
Good
Good
32 
        Goleta
Good
Good
22 
        Lompoc
Good
Good
32 
        Paradise Road
Good
Good
 
        Santa Barbara
Good
Good
36 
        Santa Maria
Good
Good
24 
        Santa Ynez
Good
Good
33 
Santa Rosa Rancheria
aqi not available
aqi not available
25 
Sequoia/Kings Canyon National Parks
44 
39 
33 
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
 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
 
Ventura County Area
        Ojai
35 
40 
36 
        Oxnard
35 
40 
36 
        Piru
35 
40 
38 
        Simi Valley
35 
40 
38 
        Thousand Oaks
35 
40 
37 
Western Nevada County
38 
38 
31 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
43 
39 
41 
Yuba City/Marysville
Moderate
Good
76 
Yucca Vly
29 
37 
 
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.