California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170623_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
Fri
Jun 23
Sat
Jun 24
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
67 
Bishop Paiute Tribe
aqi not available
aqi not available
31 
Chester
aqi not available
aqi not available
 
Chico
Good
Moderate
72 
Death Valley National Park
44 
40 
45 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
67 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
45 
Imperial Valley
72 
112 
112 
Joshua Tree National Park
aqi not available
aqi not available
67 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
36 
47 
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
28 
Los Angeles Area
        Antelope Vly
100 
100 
57 
        Anza Vly
67 
67 
90 
        Banning
100 
161 
108 
        Barstow
46 
55 
 
        Big Bear Lake
161 
132 
 
        C San Bernardino M
205 
205 
105 
        C San Bernardino-1
132 
161 
174 
        C San Bernardino-2
187 
161 
174 
        Capistrano Vly
50 
50 
 
        Central Coastal
42 
46 
39 
        Central LA CO
59 
67 
93 
        Central Orange-1
63 
50 
75 
        Central Orange-2
53 
50 
75 
        Coachella Vly
100 
161 
147 
        E San Bernardino
187 
161 
174 
        E San Fernando Vly
67 
67 
93 
        E San Gabriel V-1
100 
100 
112 
        E San Gabriel V-2
132 
132 
112 
        East Riverside CO
46 
57 
58 
        Hemet/San Jacinto
100 
132 
150 
        Hesperia
100 
100 
97 
        Lake Elsinore
132 
161 
179 
        Metro Riverside CO
161 
187 
156 
        N Coastal Orange
38 
42 
64 
        NW Coastal LA
50 
67 
64 
        NW San Bernardino
161 
161 
159 
        Norco/Corona
132 
132 
156 
        North Orange CO
57 
55 
75 
        Perris Vly
161 
161 
150 
        Phelan
100 
132 
105 
        Pomona Walnut Vly
67 
67 
67 
        S Central LA CO
59 
57 
38 
        S San Gabriel Vly
67 
100 
 
        SW Coastal LA
37 
46 
64 
        SW San Bernardino
132 
132 
159 
        Saddleback Vly
100 
46 
75 
        San Gabriel Mts
132 
132 
156 
        Santa Clarita Vly
161 
132 
156 
        South Coastal LA
68 
50 
64 
        Southeast LA CO
59 
67 
75 
        Temecula Vly
67 
59 
90 
        Trona
67 
67 
77 
        Twentynine Palms
100 
67 
 
        Victorville
46 
57 
67 
        W San Bernardino M
161 
161 
159 
        W San Fernando Vly
67 
72 
93 
        W San Gabriel Vly
100 
61 
75 
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
10 
Monterey Bay Area
        Carmel Valley
Good
Good
 
        Davenport
Good
Good
 
        Hollister
Good
Good
 
        King City
Good
Good
 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
45 
        Salinas
Good
Good
45 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
28 
Paradise
Good
Moderate
74 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
20 
Red Bluff
aqi not available
aqi not available
 
Redding
39 
aqi not available
45 
Sacramento Area
        Arden Arcade-Del Paso Manor
101 
93 
84 
        Auburn
126 
105 
84 
        Colfax
126 
105 
77 
        Cool
126 
108 
 
        Davis
54 
51 
 
        Elk Grove
101 
93 
51 
        Folsom
101 
93 
74 
        Lincoln
126 
105 
101 
        Natomas
101 
93 
 
        North Highlands
101 
93 
143 
        Placerville
126 
108 
80 
        Rio Vista
54 
51 
23 
        Roseville-Rocklin
126 
105 
93 
        Sacramento
101 
93 
84 
        Sloughhouse
101 
93 
51 
        Vacaville
54 
51 
46 
        Woodland
54 
51 
87 
San Diego Area
        San Diego Coast
Good
Good
33 
        San Diego Foothills
Moderate
Unhealthy for Sensitive Groups
93 
        San Diego Mesa and Inland Valley
Moderate
Moderate
57 
San Francisco Area
        Concord
101 
46 
44 
        Fairfield
101 
46 
37 
        Fremont
57 
38 
38 
        Livermore
101 
46 
49 
        Napa
57 
42 
34 
        Oakland
68 
46 
27 
        Redwood City
57 
38 
38 
        San Francisco
68 
46 
21 
        San Jose
90 
46 
57 
        San Rafael
57 
42 
24 
        Santa Rosa
57 
42 
25 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
136 
119 
126 
        Fresno
147 
129 
192 
        Hanford
100 
87 
90 
        Madera
112 
93 
119 
        Merced
97 
90 
74 
        Modesto
100 
80 
77 
        Stockton
97 
74 
46 
        Visalia
143 
136 
115 
San Luis Obispo County
        Atascadero
41 
44 
35 
        Carrizo Plains
65 
54 
97 
        Morro Bay
30 
32 
 
        Nipomo
34 
49 
30 
        Paso Robles
44 
46 
58 
        Red Hills
59 
53 
58 
        San Luis Obispo
33 
37 
25 
Santa Barbara County
        Carpinteria
Good
Good
25 
        Gaviota Coast
Good
Good
29 
        Goleta
Good
Good
26 
        Lompoc
Good
Good
31 
        Paradise Road
Good
Good
45 
        Santa Barbara
Good
Good
31 
        Santa Maria
Good
Good
26 
        Santa Ynez
Good
Good
36 
Santa Rosa Rancheria
aqi not available
aqi not available
97 
Sequoia/Kings Canyon National Parks
119 
90 
105 
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
90 
Ventura County Area
        Ojai
45 
55 
38 
        Oxnard
50 
45 
32 
        Piru
50 
60 
58 
        Simi Valley
80 
90 
62 
        Thousand Oaks
50 
50 
48 
Western Nevada County
110 
110 
87 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
44 
45 
71 
Yuba City/Marysville
Moderate
Unhealthy for Sensitive Groups
67 
Yucca Vly
100 
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.