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_20180819_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
Sun
Aug 19
Mon
Aug 20
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
49 
Bishop Paiute Tribe
aqi not available
aqi not available
43 
Chester
aqi not available
aqi not available
32 
Chico
Moderate
Moderate
56 
Death Valley National Park
58
50
67 
Eureka
aqi not available
aqi not available
74 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
38 
Great Basin Air District
aqi not available
aqi not available
82 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Moderate
Moderate
63 
Imperial Valley
aqi not available
aqi not available
50 
Joshua Tree National Park
aqi not available
aqi not available
101 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
67
77
74 
Laytonville
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
 
Leggett
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
 
Lone Pine Paiute-Shoshone Reservation
aqi not available
aqi not available
28 
Los Angeles Area
        Antelope Vly
95
76
100 
        Anza Vly
64
46
90 
        Banning
70
82
140 
        Barstow
50
46
101 
        Big Bear Lake
70
98
 
        C San Bernardino M
159
161
185 
        C San Bernardino-1
95
121
164 
        C San Bernardino-2
121
141
164 
        Capistrano Vly
39
34
42 
        Central Coastal
46
46
42 
        Central LA CO
50
61
97 
        Central Orange-1
52
54
59 
        Central Orange-2
54
54
59 
        Coachella Vly
60
89
129 
        E San Bernardino
95
141
151 
        E San Fernando Vly
47
61
97 
        E San Gabriel V-1
57
104
147 
        E San Gabriel V-2
79
101
147 
        East Riverside CO
92
70
 
        Hemet/San Jacinto
61
60
129 
        Hesperia
92
67
115 
        Lake Elsinore
67
92
90 
        Metro Riverside CO
73
98
101 
        N Coastal Orange
54
52
58 
        NW Coastal LA
38
54
58 
        NW San Bernardino
92
111
129 
        Norco/Corona
70
67
101 
        North Orange CO
42
52
59 
        Perris Vly
70
101
129 
        Phelan
50
89
159 
        Pomona Walnut Vly
57
76
84 
        S Central LA CO
34
54
43 
        S San Gabriel Vly
73
54
 
        SW Coastal LA
30
54
58 
        SW San Bernardino
92
85
129 
        Saddleback Vly
45
40
59 
        San Gabriel Mts
79
67
147 
        Santa Clarita Vly
67
108
143 
        South Coastal LA
40
46
58 
        Southeast LA CO
46
52
59 
        Temecula Vly
64
46
90 
        Trona
50
45
77 
        Twentynine Palms
92
70
101 
        Victorville
50
42
84 
        W San Bernardino M
92
104
185 
        W San Fernando Vly
64
54
97 
        W San Gabriel Vly
50
89
100 
Mammoth Lakes
aqi not available
aqi not available
11 
Markleeville
aqi not available
aqi not available
 
Mendocino County
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
129 
Mono Lake
aqi not available
aqi not available
82 
Monterey Bay Area
        Carmel Valley
Moderate
Good
 
        Davenport
Good
Good
 
        Hollister
Moderate
Good
 
        King City
Moderate
Good
 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Moderate
Good
 
        Salinas
Good
Good
72 
        San Lorenzo Valley
Moderate
Moderate
 
        Santa Cruz
Good
Good
65 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
30 
Paradise
Moderate
Moderate
61 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
20 
Quincy
aqi not available
aqi not available
Red Bluff
aqi not available
aqi not available
58 
Redding
90
aqi not available
89 
Sacramento Area
        Arden Arcade-Del Paso Manor
108
99
93 
        Auburn
129
101
115 
        Colfax
129
101
100 
        Cool
126
105
105 
        Davis
94
85
49 
        Elk Grove
108
99
61 
        Folsom
108
99
108 
        Lincoln
129
101
 
        Natomas
108
99
 
        North Highlands
108
99
105 
        Placerville
126
105
105 
        Rio Vista
94
85
66 
        Roseville-Rocklin
129
101
126 
        Sacramento
108
99
60 
        Sloughhouse
108
99
79 
        Vacaville
94
85
44 
        Woodland
94
85
71 
San Diego Area
        San Diego Coast
Moderate
Good
55 
        San Diego Foothills
Moderate
Moderate
74 
        San Diego Mesa and Inland Valley
Moderate
Moderate
71 
San Francisco Area
        Concord
90
84
152 
        Fairfield
90
84
80 
        Fremont
66
55
75 
        Livermore
90
84
145 
        Napa
68
78
69 
        Oakland
76
72
78 
        Redwood City
66
55
75 
        San Francisco
76
72
77 
        San Jose
101
80
75 
        San Rafael
68
78
70 
        Santa Rosa
68
78
31 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
119
115
90 
        Fresno
115
112
126 
        Hanford
97
93
97 
        Madera
87
87
77 
        Merced
84
77
71 
        Modesto
87
74
77 
        Stockton
93
64
80 
        Visalia
100
97
90 
San Luis Obispo County
        Atascadero
50
37
53 
        Carrizo Plains
50
42
48 
        Morro Bay
45
40
31 
        Nipomo
45
36
77 
        Paso Robles
49
37
53 
        Red Hills
45
42
44 
        San Luis Obispo
49
36
62 
Santa Barbara County
        Carpinteria
Good
Good
41 
        Gaviota Coast
Good
Good
42 
        Goleta
Good
Good
53 
        Lompoc
Good
Good
67 
        Paradise Road
Good
Good
45 
        Santa Barbara
Good
Good
56 
        Santa Maria
Good
Good
68 
        Santa Ynez
Good
Good
33 
Santa Rosa Rancheria
aqi not available
aqi not available
90 
Sequoia/Kings Canyon National Parks
54
61
 
South Lake Tahoe
aqi not available
aqi not available
37 
Tahoe City area
aqi not available
aqi not available
14 
Truckee
aqi not available
aqi not available
28 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
77 
Ventura County Area
        Ojai
75
65
62 
        Oxnard
55
50
43 
        Piru
80
70
73 
        Simi Valley
90
80
67 
        Thousand Oaks
75
60
47 
Western Nevada County
90
90
18 
Willits
Unhealthy for Sensitive Groups
Unhealthy for Sensitive Groups
 
Willows
aqi not available
aqi not available
52 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
44
64
48 
Yreka
aqi not available
aqi not available
170 
Yuba City/Marysville
97
87
65 
Yucca Vly
92
57
 
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.