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
84 
Bishop Paiute Tribe
aqi not available
aqi not available
36 
Chester
aqi not available
aqi not available
25 
Chico
aqi not available
aqi not available
50 
Death Valley National Park
97
50
84 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
14 
Great Basin Air District
aqi not available
aqi not available
84 
Greeley Hill
aqi not available
aqi not available
 
Gridley
aqi not available
aqi not available
41 
Imperial Valley
aqi not available
aqi not available
44 
Joshua Tree National Park
aqi not available
aqi not available
48 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
54
77
49 
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
46 
Los Angeles Area
        Antelope Vly
100
132
122 
        Anza Vly
67
67
74 
        Banning
132
161
67 
        Barstow
67
53
84 
        Big Bear Lake
132
132
 
        C San Bernardino M
161
161
129 
        C San Bernardino-1
132
132
169 
        C San Bernardino-2
132
161
169 
        Capistrano Vly
46
55
42 
        Central Coastal
55
55
42 
        Central LA CO
57
57
159 
        Central Orange-1
46
53
44 
        Central Orange-2
50
53
44 
        Coachella Vly
132
68
41 
        E San Bernardino
132
161
151 
        E San Fernando Vly
67
68
159 
        E San Gabriel V-1
100
100
126 
        E San Gabriel V-2
100
132
126 
        East Riverside CO
57
55
 
        Hemet/San Jacinto
100
132
147 
        Hesperia
100
67
87 
        Lake Elsinore
100
132
33 
        Metro Riverside CO
100
161
143 
        N Coastal Orange
55
55
42 
        NW Coastal LA
46
46
42 
        NW San Bernardino
100
132
136 
        Norco/Corona
67
132
143 
        North Orange CO
53
57
46 
        Perris Vly
100
161
147 
        Phelan
100
132
93 
        Pomona Walnut Vly
67
100
90 
        S Central LA CO
38
57
38 
        S San Gabriel Vly
46
67
 
        SW Coastal LA
46
46
42 
        SW San Bernardino
100
100
136 
        Saddleback Vly
46
50
44 
        San Gabriel Mts
100
100
136 
        Santa Clarita Vly
100
132
136 
        South Coastal LA
38
42
42 
        Southeast LA CO
57
59
44 
        Temecula Vly
55
67
74 
        Trona
67
67
108 
        Twentynine Palms
100
100
84 
        Victorville
57
55
97 
        W San Bernardino M
132
132
136 
        W San Fernando Vly
67
68
159 
        W San Gabriel Vly
100
67
100 
Mammoth Lakes
aqi not available
aqi not available
15 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
35 
Mono Lake
aqi not available
aqi not available
52 
Monterey Bay Area
        Carmel Valley
Good
Good
25 
        Davenport
Good
Good
 
        Hollister
Good
Good
31 
        King City
Good
Good
65 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
48 
        Salinas
Good
Good
65 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
25 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
54 
Paradise
aqi not available
aqi not available
100 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
21 
Quincy
aqi not available
aqi not available
33 
Red Bluff
Good
Moderate
71 
Redding
78
aqi not available
87 
Sacramento Area
        Arden Arcade-Del Paso Manor
126
108
154 
        Auburn
133
119
100 
        Colfax
133
119
101 
        Cool
133
122
112 
        Davis
84
67
77 
        Elk Grove
126
108
74 
        Folsom
126
108
151 
        Lincoln
133
119
 
        Natomas
126
108
 
        North Highlands
126
108
93 
        Placerville
133
122
112 
        Rio Vista
84
67
30 
        Roseville-Rocklin
133
119
71 
        Sacramento
126
108
93 
        Sloughhouse
126
108
133 
        Vacaville
84
67
46 
        Woodland
84
67
115 
San Diego Area
        San Diego Coast
Good
Good
32 
        San Diego Foothills
Moderate
Moderate
93 
        San Diego Mesa and Inland Valley
Good
Moderate
46 
San Francisco Area
        Concord
84
58
65 
        Fairfield
84
58
54 
        Fremont
44
46
51 
        Livermore
84
58
122 
        Napa
38
27
 
        Oakland
50
46
35 
        Redwood City
44
46
51 
        San Francisco
50
46
21 
        San Jose
77
51
54 
        San Rafael
38
27
25 
        Santa Rosa
38
27
23 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
108
112
84 
        Fresno
126
108
147 
        Hanford
100
87
93 
        Madera
100
84
93 
        Merced
93
84
90 
        Modesto
100
97
93 
        Stockton
74
77
51 
        Visalia
122
122
154 
San Luis Obispo County
        Atascadero
43
42
39 
        Carrizo Plains
60
54
64 
        Morro Bay
25
32
24 
        Nipomo
29
32
27 
        Paso Robles
47
44
61 
        Red Hills
52
51
50 
        San Luis Obispo
27
30
27 
Santa Barbara County
        Carpinteria
Good
Good
37 
        Gaviota Coast
Good
Good
29 
        Goleta
Good
Good
33 
        Lompoc
Good
Good
27 
        Paradise Road
Good
Good
45 
        Santa Barbara
Good
Good
42 
        Santa Maria
Good
Good
23 
        Santa Ynez
Good
Good
49 
Santa Rosa Rancheria
aqi not available
aqi not available
84 
Sequoia/Kings Canyon National Parks
84
74
143 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
55 
Truckee
aqi not available
aqi not available
34 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
129 
Ventura County Area
        Ojai
45
55
48 
        Oxnard
40
40
33 
        Piru
50
60
64 
        Simi Valley
60
60
90 
        Thousand Oaks
50
50
53 
Western Nevada County
80
80
Willits
aqi not available
aqi not available
 
Willows
Good
Good
48 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
51
64
166 
Yreka
aqi not available
aqi not available
71 
Yuba City/Marysville
95
95
64 
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.