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_20180817_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
Fri
Aug 17
Sat
Aug 18
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
48 
Bishop Paiute Tribe
aqi not available
aqi not available
43 
Chester
aqi not available
aqi not available
14 
Chico
Moderate
Moderate
58 
Death Valley National Park
51
50
51 
Eureka
aqi not available
aqi not available
29 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
Moderate
Unhealthy for Sensitive Groups
Great Basin Air District
aqi not available
aqi not available
48 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
65 
Imperial Valley
aqi not available
aqi not available
40 
Joshua Tree National Park
aqi not available
aqi not available
42 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
51
48
47 
Laytonville
Moderate
Unhealthy for Sensitive Groups
 
Leggett
Moderate
Unhealthy for Sensitive Groups
 
Lone Pine Paiute-Shoshone Reservation
aqi not available
aqi not available
52 
Los Angeles Area
        Antelope Vly
76
64
126 
        Anza Vly
50
60
97 
        Banning
89
63
122 
        Barstow
46
49
129 
        Big Bear Lake
98
101
 
        C San Bernardino M
174
151
172 
        C San Bernardino-1
118
95
201 
        C San Bernardino-2
151
118
201 
        Capistrano Vly
50
50
43 
        Central Coastal
42
50
43 
        Central LA CO
52
52
84 
        Central Orange-1
46
52
63 
        Central Orange-2
50
54
63 
        Coachella Vly
89
60
45 
        E San Bernardino
154
92
177 
        E San Fernando Vly
52
59
84 
        E San Gabriel V-1
89
65
140 
        E San Gabriel V-2
76
79
140 
        East Riverside CO
82
85
 
        Hemet/San Jacinto
67
82
119 
        Hesperia
76
79
112 
        Lake Elsinore
98
67
97 
        Metro Riverside CO
98
73
136 
        N Coastal Orange
38
54
61 
        NW Coastal LA
38
46
61 
        NW San Bernardino
98
92
161 
        Norco/Corona
64
70
136 
        North Orange CO
50
59
63 
        Perris Vly
121
70
119 
        Phelan
98
50
122 
        Pomona Walnut Vly
60
92
108 
        S Central LA CO
33
38
41 
        S San Gabriel Vly
45
51
 
        SW Coastal LA
39
43
61 
        SW San Bernardino
79
95
161 
        Saddleback Vly
42
50
63 
        San Gabriel Mts
73
76
151 
        Santa Clarita Vly
114
67
151 
        South Coastal LA
38
46
61 
        Southeast LA CO
54
57
63 
        Temecula Vly
52
61
97 
        Trona
50
50
101 
        Twentynine Palms
82
85
129 
        Victorville
50
50
108 
        W San Bernardino M
114
92
172 
        W San Fernando Vly
57
63
84 
        W San Gabriel Vly
76
57
66 
Mammoth Lakes
aqi not available
aqi not available
12 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Moderate
Unhealthy for Sensitive Groups
123 
Mono Lake
aqi not available
aqi not available
19 
Monterey Bay Area
        Carmel Valley
Moderate
Moderate
 
        Davenport
Good
Good
 
        Hollister
Moderate
Moderate
 
        King City
Moderate
Moderate
 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Moderate
 
        Salinas
Moderate
Moderate
59 
        San Lorenzo Valley
Moderate
Moderate
 
        Santa Cruz
Moderate
Moderate
62 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
Moderate
Moderate
 
Owens Lake
aqi not available
aqi not available
52 
Paradise
Moderate
Moderate
61 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
Quincy
aqi not available
aqi not available
Red Bluff
aqi not available
aqi not available
87 
Redding
105
110
104 
Sacramento Area
        Arden Arcade-Del Paso Manor
108
115
93 
        Auburn
122
133
80 
        Colfax
122
133
64 
        Cool
122
126
71 
        Davis
80
87
58 
        Elk Grove
108
115
71 
        Folsom
108
115
97 
        Lincoln
122
133
 
        Natomas
108
115
 
        North Highlands
108
115
61 
        Placerville
122
126
87 
        Rio Vista
80
87
37 
        Roseville-Rocklin
122
133
54 
        Sacramento
108
115
71 
        Sloughhouse
108
115
100 
        Vacaville
80
87
48 
        Woodland
80
87
80 
San Diego Area
        San Diego Coast
Good
Good
41 
        San Diego Foothills
Moderate
Moderate
84 
        San Diego Mesa and Inland Valley
Moderate
Moderate
48 
San Francisco Area
        Concord
84
101
51 
        Fairfield
84
101
67 
        Fremont
63
70
65 
        Livermore
84
101
61 
        Napa
70
68
54 
        Oakland
66
76
70 
        Redwood City
63
70
65 
        San Francisco
66
76
56 
        San Jose
80
104
84 
        San Rafael
70
68
60 
        Santa Rosa
70
68
31 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
115
122
101 
        Fresno
100
112
129 
        Hanford
93
93
87 
        Madera
80
97
84 
        Merced
84
90
97 
        Modesto
80
80
84 
        Stockton
74
70
74 
        Visalia
97
100
97 
San Luis Obispo County
        Atascadero
60
49
56 
        Carrizo Plains
74
50
58 
        Morro Bay
51
50
32 
        Nipomo
64
50
69 
        Paso Robles
59
50
84 
        Red Hills
57
50
61 
        San Luis Obispo
65
50
57 
Santa Barbara County
        Carpinteria
Good
Good
43 
        Gaviota Coast
Good
Good
38 
        Goleta
Moderate
Moderate
53 
        Lompoc
Moderate
Moderate
61 
        Paradise Road
Good
Good
44 
        Santa Barbara
Moderate
Moderate
55 
        Santa Maria
Moderate
Moderate
60 
        Santa Ynez
Good
Good
39 
Santa Rosa Rancheria
aqi not available
aqi not available
105 
Sequoia/Kings Canyon National Parks
58
51
South Lake Tahoe
aqi not available
aqi not available
47 
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
64 
Ventura County Area
        Ojai
55
60
55 
        Oxnard
50
50
35 
        Piru
65
70
70 
        Simi Valley
65
80
51 
        Thousand Oaks
55
65
37 
Western Nevada County
80
90
48 
Willits
Moderate
Unhealthy for Sensitive Groups
 
Willows
aqi not available
aqi not available
52 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
41
45
46 
Yreka
aqi not available
aqi not available
133 
Yuba City/Marysville
49
71
48 
Yucca Vly
64
76
 
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.