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  3. California

California

United States

2026-06-27 12:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
46.4
PM2.5
μg/m³
3
PM10
μg/m³
8.3
NO2
μg/m³
3.9
CO
μg/m³
191.4
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
18℃
86%
2 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 31
Alpine County
AQI 5
Amador County
AQI 16
Butte County
AQI 19
Calaveras County
AQI 16
Colusa County
AQI 17
Contra Costa County
AQI 23
Del Norte County
AQI 23
El Dorado County
AQI 20
Fresno County
AQI 19
Glenn County
AQI 13
Humboldt County
AQI 9
Imperial County
AQI 45
Inyo County
AQI 32
Kern County
AQI 22
Kings County
AQI 23
Lake County
AQI 17
Lassen County
AQI 10
Los Angeles County
AQI 45
Madera County
AQI 30
Marin County
AQI 19
Mariposa County
AQI 26
Mendocino County
AQI 14
Merced County
AQI 16
Modoc County
AQI 10
Mono County
AQI 20
Monterey County
AQI 20
Napa County
AQI 8
Nevada County
AQI 22
Orange County
AQI 40
Placer County
AQI 24
Plumas County
AQI 6
Riverside County
AQI 44
Sacramento County
AQI 22
San Benito County
AQI 17
San Bernardino County
AQI 39
San Diego County
AQI 37
San Francisco County
AQI 17
San Joaquin County
AQI 19
San Luis Obispo County
AQI 15
San Mateo County
AQI 16
Santa Barbara County
AQI 17
Santa Clara County
AQI 19
Santa Cruz County
AQI 19
Shasta County
AQI 21
Sierra County
AQI 6
Siskiyou County
AQI 20
Solano County
AQI 21
Sonoma County
AQI 20
Stanislaus County
AQI 19
Sutter County
AQI 17
Tehama County
AQI 19
Trinity County
AQI 4
Tulare County
AQI 20
Tuolumne County
AQI 17
Ventura County
AQI 34
Yolo County
AQI 19
Yuba County
AQI 6
Data Sources
http://www.airnow.gov/

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