California
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170729_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
Sat
Jul 29
Sun
Jul 30
Bear Valley
aqi not available
aqi not available
 
Bishop
aqi not available
aqi not available
56 
Bishop Paiute Tribe
aqi not available
aqi not available
15 
Chester
aqi not available
aqi not available
 
Chico
Moderate
aqi not available
35 
Death Valley National Park
93 
aqi not available
51 
Forest Ranch
aqi not available
aqi not available
 
Great Basin Air District
aqi not available
aqi not available
56 
Greeley Hill
aqi not available
aqi not available
 
Gridley
Good
aqi not available
45 
Imperial Valley
aqi not available
aqi not available
50 
Joshua Tree National Park
aqi not available
aqi not available
45 
La Grange
aqi not available
aqi not available
 
Lancaster
aqi not available
aqi not available
 
Lassen Volcanic National Park
71 
aqi not available
32 
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
56 
Los Angeles Area
        Antelope Vly
67 
67 
48 
        Anza Vly
67 
67 
56 
        Banning
161 
132 
59 
        Barstow
67 
67 
31 
        Big Bear Lake
132 
161 
 
        C San Bernardino M
187 
187 
67 
        C San Bernardino-1
67 
67 
56 
        C San Bernardino-2
161 
161 
56 
        Capistrano Vly
50 
46 
27 
        Central Coastal
46 
55 
27 
        Central LA CO
50 
46 
74 
        Central Orange-1
67 
46 
38 
        Central Orange-2
50 
50 
38 
        Coachella Vly
161 
161 
46 
        E San Bernardino
161 
161 
        E San Fernando Vly
100 
100 
74 
        E San Gabriel V-1
67 
67 
31 
        E San Gabriel V-2
61 
55 
31 
        East Riverside CO
67 
50 
 
        Hemet/San Jacinto
132 
100 
47 
        Hesperia
50 
67 
42 
        Lake Elsinore
132 
161 
56 
        Metro Riverside CO
132 
132 
54 
        N Coastal Orange
37 
46 
32 
        NW Coastal LA
67 
46 
32 
        NW San Bernardino
100 
100 
56 
        Norco/Corona
132 
132 
43 
        North Orange CO
67 
67 
38 
        Perris Vly
161 
161 
47 
        Phelan
67 
67 
49 
        Pomona Walnut Vly
67 
67 
        S Central LA CO
37 
42 
19 
        S San Gabriel Vly
67 
67 
 
        SW Coastal LA
46 
46 
32 
        SW San Bernardino
100 
100 
56 
        Saddleback Vly
67 
67 
38 
        San Gabriel Mts
100 
100 
51 
        Santa Clarita Vly
132 
132 
51 
        South Coastal LA
46 
46 
32 
        Southeast LA CO
55 
46 
38 
        Temecula Vly
67 
67 
56 
        Trona
50 
50 
44 
        Twentynine Palms
50 
67 
31 
        Victorville
67 
50 
34 
        W San Bernardino M
132 
161 
67 
        W San Fernando Vly
67 
67 
74 
        W San Gabriel Vly
57 
46 
51 
Mammoth Lakes
aqi not available
aqi not available
Markleeville
aqi not available
aqi not available
 
Mendocino County
Good
aqi not available
22 
Mono Lake
aqi not available
aqi not available
Monterey Bay Area
        Carmel Valley
Good
Good
25 
        Davenport
Good
Good
 
        Hollister
Good
Good
19 
        King City
Moderate
Moderate
41 
        Marina/Seaside
Good
Good
 
        Monterey Peninsula
Good
Good
 
        Pinnacles National Monument
Moderate
Moderate
14 
        Salinas
Good
Good
48 
        San Lorenzo Valley
Good
Good
 
        Santa Cruz
Good
Good
48 
        Scotts Valley
Good
Good
 
        Watsonville
Good
Good
 
Oroville
aqi not available
aqi not available
 
Owens Lake
aqi not available
aqi not available
56 
Paradise
Moderate
aqi not available
64 
Point Reyes
aqi not available
aqi not available
 
Portola
aqi not available
aqi not available
 
Quincy
aqi not available
aqi not available
33 
Red Bluff
aqi not available
aqi not available
 
Redding
86 
90 
39 
Sacramento Area
        Arden Arcade-Del Paso Manor
100 
101 
41 
        Auburn
101 
105 
48 
        Colfax
101 
105 
47 
        Cool
101 
105 
35 
        Davis
71 
80 
43 
        Elk Grove
100 
101 
14 
        Folsom
100 
101 
31 
        Lincoln
101 
105 
50 
        Natomas
100 
101 
 
        North Highlands
100 
101 
18 
        Placerville
101 
105 
51 
        Rio Vista
71 
80 
 
        Roseville-Rocklin
101 
105 
43 
        Sacramento
100 
101 
32 
        Sloughhouse
100 
101 
43 
        Vacaville
71 
80 
52 
        Woodland
71 
80 
51 
San Diego Area
        San Diego Coast
Good
Good
16 
        San Diego Foothills
Moderate
Moderate
39 
        San Diego Mesa and Inland Valley
Good
Moderate
52 
San Francisco Area
        Concord
51 
Moderate
 
        Fairfield
51 
Moderate
 
        Fremont
37 
Moderate
 
        Livermore
51 
Moderate
 
        Napa
47 
Moderate
 
        Oakland
46 
Moderate
 
        Redwood City
37 
Moderate
 
        San Francisco
46 
Moderate
 
        San Jose
51 
Moderate
 
        San Rafael
47 
Moderate
 
        Santa Rosa
47 
Moderate
 
San Jacinto
aqi not available
aqi not available
 
San Joaquin Valley Area
        Bakersfield
119 
Unhealthy for Sensitive Groups
33 
        Fresno
136 
Unhealthy for Sensitive Groups
36 
        Hanford
100 
Unhealthy for Sensitive Groups
43 
        Madera
108 
Unhealthy for Sensitive Groups
28 
        Merced
100 
Moderate
40 
        Modesto
112 
Unhealthy for Sensitive Groups
25 
        Stockton
77 
Moderate
34 
        Visalia
112 
Unhealthy for Sensitive Groups
42 
San Luis Obispo County
        Atascadero
40 
41 
28 
        Carrizo Plains
49 
51 
18 
        Morro Bay
23 
25 
20 
        Nipomo
30 
29 
40 
        Paso Robles
41 
43 
28 
        Red Hills
50 
51 
32 
        San Luis Obispo
25 
27 
19 
Santa Barbara County
        Carpinteria
Good
aqi not available
13 
        Gaviota Coast
Good
aqi not available
24 
        Goleta
Good
aqi not available
34 
        Lompoc
Good
aqi not available
24 
        Paradise Road
Good
aqi not available
12 
        Santa Barbara
Good
aqi not available
26 
        Santa Maria
Good
aqi not available
19 
        Santa Ynez
Good
aqi not available
17 
Santa Rosa Rancheria
aqi not available
aqi not available
33 
Sequoia/Kings Canyon National Parks
97 
aqi not available
87 
South Lake Tahoe
aqi not available
aqi not available
 
Tahoe City area
aqi not available
aqi not available
39 
Truckee
aqi not available
aqi not available
62 
Tuolumne City
aqi not available
aqi not available
 
Tuolumne County
aqi not available
aqi not available
40 
Ventura County Area
        Ojai
55 
55 
36 
        Oxnard
50 
50 
41 
        Piru
50 
55 
67 
        Simi Valley
55 
60 
53 
        Thousand Oaks
50 
55 
53 
Western Nevada County
140 
140 
101 
Yankee Hill
aqi not available
aqi not available
 
Yosemite National Park
50 
aqi not available
51 
Yuba City/Marysville
Moderate
Unhealthy for Sensitive Groups
52 
Yucca Vly
50 
50 
 
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.