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California

United States

2026-10-17 02:00
AQI (China)
Good
Pollutants|Pollens
PM10
μg/m³
59
O3
μg/m³
90.8
NO2
μg/m³
22.8
PM2.5
μg/m³
6.6
CO
μg/m³
477.9
SO2
μg/m³
1.5
Weather
  • ℃
  • ℉
21℃
34%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • NO2
  • PM2.5
  • CO
  • SO2
Places included
Alameda County
AQI 82
Alpine County
AQI 14
Amador County
AQI 48
Butte County
AQI 79
Calaveras County
AQI 48
Colusa County
AQI 75
Contra Costa County
AQI 65
Del Norte County
AQI 3
El Dorado County
AQI 44
Fresno County
AQI 66
Glenn County
AQI 27
Humboldt County
AQI 10
Imperial County
AQI 170
Inyo County
AQI 28
Kern County
AQI 53
Kings County
AQI 98
Lake County
AQI 7
Lassen County
AQI 13
Los Angeles County
AQI 51
Madera County
AQI 72
Marin County
AQI 16
Mariposa County
AQI 38
Mendocino County
AQI 31
Merced County
AQI 78
Modoc County
AQI 5
Mono County
AQI 18
Monterey County
AQI 52
Napa County
AQI 10
Nevada County
AQI 10
Orange County
AQI 41
Placer County
AQI 41
Plumas County
AQI 1
Riverside County
AQI 37
Sacramento County
AQI 48
San Benito County
AQI 34
San Bernardino County
AQI 29
San Diego County
AQI 50
San Francisco County
AQI 31
San Joaquin County
AQI 75
San Luis Obispo County
AQI 55
San Mateo County
AQI 26
Santa Barbara County
AQI 39
Santa Clara County
AQI 32
Santa Cruz County
AQI 32
Shasta County
AQI 49
Sierra County
AQI 1
Siskiyou County
AQI 21
Solano County
AQI 56
Sonoma County
AQI 23
Stanislaus County
AQI 85
Sutter County
AQI 63
Tehama County
AQI 49
Trinity County
AQI 8
Tulare County
AQI 75
Tuolumne County
AQI 28
Ventura County
AQI 29
Yolo County
AQI 46
Yuba County
AQI 63
Data Sources
http://www.airnow.gov/

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