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California

United States

2026-10-17 06:00
AQI (China)
Good
Pollutants|Pollens
PM10
μg/m³
52.3
O3
μg/m³
61.5
NO2
μg/m³
33.8
PM2.5
μg/m³
8.8
CO
μg/m³
665.4
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
17℃
31%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • NO2
  • PM2.5
  • CO
  • SO2
Places included
Alameda County
AQI 41
Alpine County
AQI 23
Amador County
AQI 35
Butte County
AQI 44
Calaveras County
AQI 35
Colusa County
AQI 67
Contra Costa County
AQI 104
Del Norte County
AQI 3
El Dorado County
AQI 33
Fresno County
AQI 89
Glenn County
AQI 17
Humboldt County
AQI 12
Imperial County
AQI 102
Inyo County
AQI 26
Kern County
AQI 28
Kings County
AQI 94
Lake County
AQI 12
Lassen County
AQI 20
Los Angeles County
AQI 31
Madera County
AQI 68
Marin County
AQI 18
Mariposa County
AQI 63
Mendocino County
AQI 14
Merced County
AQI 81
Modoc County
AQI 5
Mono County
AQI 4
Monterey County
AQI 63
Napa County
AQI 16
Nevada County
AQI 11
Orange County
AQI 30
Placer County
AQI 32
Plumas County
AQI 14
Riverside County
AQI 32
Sacramento County
AQI 49
San Benito County
AQI 39
San Bernardino County
AQI 29
San Diego County
AQI 65
San Francisco County
AQI 37
San Joaquin County
AQI 81
San Luis Obispo County
AQI 43
San Mateo County
AQI 20
Santa Barbara County
AQI 25
Santa Clara County
AQI 39
Santa Cruz County
AQI 39
Shasta County
AQI 62
Sierra County
AQI 14
Siskiyou County
AQI 11
Solano County
AQI 49
Sonoma County
AQI 13
Stanislaus County
AQI 98
Sutter County
AQI 55
Tehama County
AQI 62
Trinity County
AQI 5
Tulare County
AQI 61
Tuolumne County
AQI 24
Ventura County
AQI 29
Yolo County
AQI 57
Yuba County
AQI 55
Data Sources
http://www.airnow.gov/

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