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California

United States

2026-10-17 07:00
AQI (US)
Good
Pollutants|Pollens
PM10
μg/m³
46.1
PM2.5
μg/m³
7.6
O3
μg/m³
60.4
NO2
μg/m³
30.4
CO
μg/m³
652.3
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
17℃
31%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM10
  • PM2.5
  • O3
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 47
Alpine County
AQI 8
Amador County
AQI 50
Butte County
AQI 33
Calaveras County
AQI 50
Colusa County
AQI 55
Contra Costa County
AQI 67
Del Norte County
AQI 12
El Dorado County
AQI 25
Fresno County
AQI 70
Glenn County
AQI 21
Humboldt County
AQI 23
Imperial County
AQI 83
Inyo County
AQI 33
Kern County
AQI 30
Kings County
AQI 77
Lake County
AQI 51
Lassen County
AQI 59
Los Angeles County
AQI 44
Madera County
AQI 46
Marin County
AQI 19
Mariposa County
AQI 61
Mendocino County
AQI 51
Merced County
AQI 64
Modoc County
AQI 19
Mono County
AQI 9
Monterey County
AQI 57
Napa County
AQI 61
Nevada County
AQI 41
Orange County
AQI 33
Placer County
AQI 35
Plumas County
AQI 26
Riverside County
AQI 33
Sacramento County
AQI 52
San Benito County
AQI 37
San Bernardino County
AQI 28
San Diego County
AQI 57
San Francisco County
AQI 39
San Joaquin County
AQI 60
San Luis Obispo County
AQI 40
San Mateo County
AQI 39
Santa Barbara County
AQI 28
Santa Clara County
AQI 51
Santa Cruz County
AQI 37
Shasta County
AQI 56
Sierra County
AQI 26
Siskiyou County
AQI 31
Solano County
AQI 55
Sonoma County
AQI 55
Stanislaus County
AQI 75
Sutter County
AQI 60
Tehama County
AQI 56
Trinity County
AQI 17
Tulare County
AQI 57
Tuolumne County
AQI 32
Ventura County
AQI 39
Yolo County
AQI 53
Yuba County
AQI 59
Data Sources
http://www.airnow.gov/

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