California
 
Data courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20160926_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: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action 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
Sep 26
Tue
Sep 27
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
29 
Bishop Paiute Tribe
aqi not available
aqi not available
24 
Chester
aqi not available
aqi not available
16 
Chico
Good
Moderate
67 
Death Valley National Park
45 
46 
40 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
29 
Greeley Hill
aqi not available
aqi not available
11 
Gridley
Good
Moderate
35 
Imperial Valley
48 
46 
44 
Joshua Tree National Park
aqi not available
aqi not available
43 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
41 
39 
38 
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
53 
42 
46 
        Anza Vly
67 
50 
44 
        Banning
67 
51 
44 
        Barstow
42 
42 
46 
        Big Bear Lake
42 
42 
 
        C San Bernardino M
67 
51 
44 
        C San Bernardino-1
67 
53 
51 
        C San Bernardino-2
53 
50 
51 
        Capistrano Vly
53 
50 
54 
        Central Coastal
67 
50 
54 
        Central LA CO
67 
53 
80 
        Central Orange-1
67 
53 
90 
        Central Orange-2
57 
50 
90 
        Coachella Vly
57 
50 
46 
        E San Bernardino
67 
51 
47 
        E San Fernando Vly
67 
57 
67 
        E San Gabriel V-1
67 
53 
67 
        E San Gabriel V-2
67 
53 
67 
        East Riverside CO
42 
46 
41 
        Hemet/San Jacinto
67 
50 
44 
        Hesperia
46 
46 
44 
        Lake Elsinore
67 
51 
44 
        Metro Riverside CO
68 
59 
49 
        N Coastal Orange
67 
50 
47 
        NW Coastal LA
67 
53 
74 
        NW San Bernardino
100 
55 
51 
        Norco/Corona
67 
57 
90 
        North Orange CO
67 
51 
90 
        Perris Vly
67 
51 
39 
        Phelan
46 
46 
45 
        Pomona Walnut Vly
67 
53 
48 
        S Central LA CO
53 
53 
77 
        S San Gabriel Vly
50 
53 
42 
        SW Coastal LA
67 
53 
74 
        SW San Bernardino
100 
53 
51 
        Saddleback Vly
100 
51 
90 
        San Gabriel Mts
56 
46 
71 
        Santa Clarita Vly
67 
57 
50 
        South Coastal LA
67 
53 
51 
        Southeast LA CO
53 
53 
90 
        Temecula Vly
67 
50 
44 
        Trona
42 
46 
        Twentynine Palms
50 
46 
46 
        Victorville
42 
46 
43 
        W San Bernardino M
50 
50 
51 
        W San Fernando Vly
59 
59 
67 
        W San Gabriel Vly
67 
53 
80 
Mammoth Lakes
aqi not available
aqi not available
17 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
59 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
61 
        Davenport
Good
Good
 
        Hollister
Good
Good
54 
        King City
Good
Good
54 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Moderate
Moderate
48 
        Salinas
Good
Good
61 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
58 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
Good
Moderate
 
Owens Lake
aqi not available
aqi not available
19 
Paradise
Good
Moderate
67 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
Quincy
aqi not available
aqi not available
18 
Red Bluff
aqi not available
aqi not available
 
Redding
40 
45 
45 
Sacramento Area
        Arden Arcade-Del Paso Manor
122 
129 
150 
        Auburn
122 
133 
67 
        Colfax
122 
133 
71 
        Cool
122 
133 
93 
        Davis
105 
101 
93 
        Elk Grove
122 
129 
115 
        Folsom
122 
129 
147 
        Lincoln
122 
133 
80 
        Natomas
122 
129 
164 
        North Highlands
122 
129 
166 
        Placerville
122 
133 
93 
        Rio Vista
105 
101 
25 
        Roseville-Rocklin
122 
133 
126 
        Sacramento
122 
129 
150 
        Sloughhouse
122 
129 
97 
        Vacaville
105 
101 
74 
        Woodland
105 
101 
100 
San Diego Area
        San Diego Coast
Moderate
Moderate
58 
        San Diego Foothills
Moderate
Moderate
43 
        San Diego Mesa and Inland Valley
Moderate
Moderate
44 
San Francisco Area
        Concord
132 
104 
154 
        Fairfield
132 
104 
150 
        Fremont
61 
63 
84 
        Livermore
132 
104 
119 
        Napa
61 
61 
93 
        Oakland
74 
63 
84 
        Redwood City
61 
63 
84 
        San Francisco
74 
63 
64 
        San Jose
126 
101 
100 
        San Rafael
61 
61 
147 
        Santa Rosa
61 
61 
90 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
112 
97 
67 
        Fresno
133 
119 
140 
        Hanford
126 
105 
112 
        Madera
105 
93 
129 
        Merced
105 
74 
105 
        Modesto
101 
80 
161 
        Stockton
84 
67 
159 
        Visalia
133 
84 
74 
San Luis Obispo County
        Atascadero
48 
50 
50 
        Carrizo Plains
56 
74 
47 
        Morro Bay
44 
46 
40 
        Nipomo
56 
49 
51 
        Paso Robles
49 
50 
50 
        Red Hills
73 
93 
50 
        San Luis Obispo
46 
47 
48 
Santa Barbara County
        Carpinteria
Good
Good
46 
        Gaviota Coast
Good
Good
58 
        Goleta
Good
Good
46 
        Lompoc
Good
Good
52 
        Paradise Road
Good
Good
 
        Santa Barbara
Good
Good
47 
        Santa Maria
Good
Good
48 
        Santa Ynez
Good
Good
46 
Santa Rosa Rancheria
aqi not available
aqi not available
69 
Sequoia/Kings Canyon National Parks
64 
71 
54 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
24 
Truckee
aqi not available
aqi not available
14 
Tuolumne City
aqi not available
aqi not available
27 
Tuolumne County
aqi not available
aqi not available
90 
Ventura County Area
        Ojai
60 
65 
49 
        Oxnard
70 
75 
51 
        Piru
55 
60 
45 
        Simi Valley
60 
70 
50 
        Thousand Oaks
60 
65 
58 
Western Nevada County
90 
85 
64 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
45 
45 
41 
Yuba City/Marysville
Moderate
Moderate
44 
Yucca Vly
48 
46 
 
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.