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_20180719_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.
 - 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 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 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
Thu
Jul 19
Fri
Jul 20
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
77 
Bishop Paiute Tribe
aqi not available
aqi not available
14 
Chester
aqi not available
aqi not available
31 
Chico
Moderate
Moderate
58 
Death Valley National Park
58
44
67 
Forest Ranch
aqi not available
aqi not available
 
Fort Bragg
aqi not available
aqi not available
30 
Great Basin Air District
aqi not available
aqi not available
77 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
Good
54 
Imperial Valley
aqi not available
aqi not available
37 
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
58
54 
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
132
132
108 
        Anza Vly
67
67
45 
        Banning
161
132
68 
        Barstow
53
50
77 
        Big Bear Lake
132
100
 
        C San Bernardino M
161
161
147 
        C San Bernardino-1
132
132
108 
        C San Bernardino-2
161
132
108 
        Capistrano Vly
55
46
36 
        Central Coastal
55
46
36 
        Central LA CO
57
55
62 
        Central Orange-1
53
42
41 
        Central Orange-2
53
46
41 
        Coachella Vly
68
67
48 
        E San Bernardino
161
132
115 
        E San Fernando Vly
68
100
62 
        E San Gabriel V-1
100
70
64 
        E San Gabriel V-2
132
100
64 
        East Riverside CO
55
53
 
        Hemet/San Jacinto
132
100
67 
        Hesperia
67
67
147 
        Lake Elsinore
132
132
45 
        Metro Riverside CO
161
132
66 
        N Coastal Orange
55
38
53 
        NW Coastal LA
46
57
53 
        NW San Bernardino
132
100
64 
        Norco/Corona
132
67
56 
        North Orange CO
57
50
41 
        Perris Vly
161
132
67 
        Phelan
132
100
115 
        Pomona Walnut Vly
100
67
46 
        S Central LA CO
57
37
30 
        S San Gabriel Vly
67
46
 
        SW Coastal LA
46
38
53 
        SW San Bernardino
100
67
64 
        Saddleback Vly
50
46
41 
        San Gabriel Mts
100
67
112 
        Santa Clarita Vly
132
100
112 
        South Coastal LA
42
38
53 
        Southeast LA CO
59
53
41 
        Temecula Vly
67
67
45 
        Trona
67
67
74 
        Twentynine Palms
100
50
77 
        Victorville
55
53
147 
        W San Bernardino M
132
100
147 
        W San Fernando Vly
68
100
62 
        W San Gabriel Vly
67
67
46 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
Good
34 
Mono Lake
aqi not available
aqi not available
52 
Monterey Bay Area
        Carmel Valley
Good
Good
23 
        Davenport
Good
Good
 
        Hollister
Good
Good
31 
        King City
Good
Good
72 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Good
Good
47 
        Salinas
Good
Good
72 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
26 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
51 
Paradise
Moderate
Moderate
100 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
29 
Quincy
aqi not available
aqi not available
32 
Red Bluff
Good
Moderate
93 
Redding
78
aqi not available
74 
Sacramento Area
        Arden Arcade-Del Paso Manor
108
101
71 
        Auburn
119
101
140 
        Colfax
119
101
147 
        Cool
122
108
105 
        Davis
67
61
46 
        Elk Grove
108
101
58 
        Folsom
108
101
93 
        Lincoln
119
101
 
        Natomas
108
101
 
        North Highlands
108
101
84 
        Placerville
122
108
105 
        Rio Vista
67
61
17 
        Roseville-Rocklin
119
101
84 
        Sacramento
108
101
51 
        Sloughhouse
108
101
67 
        Vacaville
67
61
44 
        Woodland
67
61
61 
San Diego Area
        San Diego Coast
Good
Good
30 
        San Diego Foothills
Moderate
Moderate
48 
        San Diego Mesa and Inland Valley
Moderate
Good
31 
San Francisco Area
        Concord
58
57
59 
        Fairfield
58
57
48 
        Fremont
46
46
40 
        Livermore
58
57
51 
        Napa
27
38
 
        Oakland
46
50
43 
        Redwood City
46
46
40 
        San Francisco
46
50
19 
        San Jose
51
55
52 
        San Rafael
27
38
31 
        Santa Rosa
27
38
27 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
112
97
143 
        Fresno
108
122
147 
        Hanford
87
80
112 
        Madera
84
80
105 
        Merced
84
93
105 
        Modesto
97
84
122 
        Stockton
77
67
100 
        Visalia
122
126
136 
San Luis Obispo County
        Atascadero
42
41
46 
        Carrizo Plains
65
69
49 
        Morro Bay
27
28
25 
        Nipomo
32
31
30 
        Paso Robles
48
47
54 
        Red Hills
63
65
46 
        San Luis Obispo
30
29
30 
Santa Barbara County
        Carpinteria
Good
Good
41 
        Gaviota Coast
Good
Good
36 
        Goleta
Good
Good
33 
        Lompoc
Good
Good
31 
        Paradise Road
Good
Good
48 
        Santa Barbara
Good
Good
40 
        Santa Maria
Good
Good
24 
        Santa Ynez
Good
Good
46 
Santa Rosa Rancheria
aqi not available
aqi not available
105 
Sequoia/Kings Canyon National Parks
48
64
136 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
22 
Truckee
aqi not available
aqi not available
44 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
133 
Ventura County Area
        Ojai
55
50
49 
        Oxnard
40
40
30 
        Piru
55
50
59 
        Simi Valley
70
65
47 
        Thousand Oaks
45
45
33 
Western Nevada County
80
80
93 
Willits
aqi not available
aqi not available
 
Willows
Good
Good
64 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
61
54
175 
Yreka
aqi not available
aqi not available
87 
Yuba City/Marysville
95
95
90 
Yucca Vly
67
53
 
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.