California
 
Data courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20160730_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
Sat
Jul 30
Sun
Jul 31
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
33 
Bishop Paiute Tribe
aqi not available
aqi not available
31 
Chester
aqi not available
aqi not available
30 
Chico
Unhealthy for Sensitive Groups
Moderate
44 
Death Valley National Park
87 
67 
71 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
55 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Good
33 
Imperial Valley
148 
50 
59 
Joshua Tree National Park
aqi not available
aqi not available
47 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
71 
43 
 
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
47 
Los Angeles Area
        Antelope Vly
100 
100 
132 
        Anza Vly
67 
67 
55 
        Banning
132 
161 
143 
        Barstow
67 
100 
74 
        Big Bear Lake
100 
67 
 
        C San Bernardino M
161 
161 
130 
        C San Bernardino-1
100 
161 
119 
        C San Bernardino-2
161 
161 
119 
        Capistrano Vly
46 
50 
36 
        Central Coastal
46 
46 
36 
        Central LA CO
53 
55 
88 
        Central Orange-1
46 
67 
49 
        Central Orange-2
67 
50 
49 
        Coachella Vly
132 
132 
166 
        E San Bernardino
161 
161 
93 
        E San Fernando Vly
100 
59 
88 
        E San Gabriel V-1
100 
100 
105 
        E San Gabriel V-2
100 
132 
105 
        East Riverside CO
67 
132 
48 
        Hemet/San Jacinto
132 
100 
55 
        Hesperia
100 
132 
181 
        Lake Elsinore
132 
132 
70 
        Metro Riverside CO
100 
132 
135 
        N Coastal Orange
38 
50 
41 
        NW Coastal LA
67 
50 
41 
        NW San Bernardino
132 
132 
119 
        Norco/Corona
100 
132 
135 
        North Orange CO
50 
67 
49 
        Perris Vly
67 
161 
44 
        Phelan
67 
132 
80 
        Pomona Walnut Vly
70 
67 
54 
        S Central LA CO
53 
53 
37 
        S San Gabriel Vly
67 
53 
44 
        SW Coastal LA
46 
50 
41 
        SW San Bernardino
132 
132 
119 
        Saddleback Vly
46 
67 
49 
        San Gabriel Mts
100 
132 
105 
        Santa Clarita Vly
132 
161 
100 
        South Coastal LA
67 
50 
41 
        Southeast LA CO
67 
53 
49 
        Temecula Vly
67 
67 
55 
        Trona
67 
67 
101 
        Twentynine Palms
67 
67 
74 
        Victorville
67 
132 
71 
        W San Bernardino M
67 
132 
130 
        W San Fernando Vly
100 
100 
88 
        W San Gabriel Vly
67 
67 
53 
Mammoth Lakes
aqi not available
aqi not available
28 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
27 
Mono Lake
aqi not available
aqi not available
20 
Monterey Bay Area
        Carmel Valley
Moderate
Moderate
70 
        Davenport
Good
Good
 
        Hollister
Moderate
Moderate
98 
        King City
Moderate
Moderate
72 
        Marina/Seaside
Moderate
Moderate
 
        Monterey Peninsula
Moderate
Moderate
 
        Pinnacles National Monument
Moderate
Good
64 
        Salinas
Moderate
Good
98 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
19 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
55 
Paradise
Unhealthy for Sensitive Groups
Moderate
46 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
24 
Quincy
aqi not available
aqi not available
26 
Red Bluff
aqi not available
aqi not available
 
Redding
aqi not available
aqi not available
74 
Sacramento Area
        Arden Arcade-Del Paso Manor
101 
100 
39 
        Auburn
126 
108 
67 
        Colfax
126 
108 
54 
        Cool
105 
101 
50 
        Davis
74 
61 
37 
        Elk Grove
101 
100 
40 
        Folsom
101 
100 
44 
        Lincoln
126 
108 
58 
        Natomas
101 
100 
38 
        North Highlands
101 
100 
43 
        Placerville
105 
101 
51 
        Rio Vista
74 
61 
        Roseville-Rocklin
126 
108 
44 
        Sacramento
101 
100 
39 
        Sloughhouse
101 
100 
39 
        Vacaville
74 
61 
35 
        Woodland
74 
61 
47 
San Diego Area
        San Diego Coast
Good
Moderate
30 
        San Diego Foothills
Moderate
Moderate
51 
        San Diego Mesa and Inland Valley
Moderate
Moderate
42 
San Francisco Area
        Concord
72 
74 
37 
        Fairfield
72 
74 
37 
        Fremont
63 
50 
40 
        Livermore
72 
74 
51 
        Napa
39 
40 
50 
        Oakland
46 
38 
19 
        Redwood City
63 
50 
40 
        San Francisco
46 
38 
19 
        San Jose
76 
78 
61 
        San Rafael
39 
40 
28 
        Santa Rosa
39 
40 
21 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
156 
159 
108 
        Fresno
169 
161 
151 
        Hanford
151 
126 
122 
        Madera
143 
105 
87 
        Merced
112 
84 
112 
        Modesto
133 
105 
93 
        Stockton
115 
101 
49 
        Visalia
182 
143 
74 
San Luis Obispo County
        Atascadero
63 
58 
36 
        Carrizo Plains
87 
79 
44 
        Morro Bay
33 
32 
19 
        Nipomo
36 
35 
31 
        Paso Robles
83 
76 
43 
        Red Hills
87 
73 
44 
        San Luis Obispo
45 
44 
29 
Santa Barbara County
        Carpinteria
Good
Good
35 
        Gaviota Coast
Good
Good
38 
        Goleta
Good
Good
53 
        Lompoc
Good
Good
39 
        Paradise Road
Good
Good
101 
        Santa Barbara
Good
Good
37 
        Santa Maria
Good
Good
26 
        Santa Ynez
Good
Good
43 
Santa Rosa Rancheria
aqi not available
aqi not available
119 
Sequoia/Kings Canyon National Parks
112 
77 
136 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
81 
Truckee
aqi not available
aqi not available
43 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
129 
Ventura County Area
        Ojai
Moderate
Moderate
74 
        Oxnard
Good
Good
33 
        Piru
Moderate
Moderate
49 
        Simi Valley
Moderate
Moderate
85 
        Thousand Oaks
Moderate
Moderate
36 
Western Nevada County
120 
100 
54 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
71 
51 
100 
Yuba City/Marysville
Moderate
Moderate
37 
Yucca Vly
67 
100 
 
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.