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California

United States

2026-10-17 06:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
8.8
PM10
μg/m³
52.3
O3
μg/m³
61.5
NO2
μg/m³
33.8
CO
μg/m³
665.4
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
15℃
41%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • O3
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 47
Alpine County
AQI 22
Amador County
AQI 58
Butte County
AQI 46
Calaveras County
AQI 58
Colusa County
AQI 60
Contra Costa County
AQI 88
Del Norte County
AQI 12
El Dorado County
AQI 30
Fresno County
AQI 76
Glenn County
AQI 23
Humboldt County
AQI 12
Imperial County
AQI 86
Inyo County
AQI 35
Kern County
AQI 30
Kings County
AQI 79
Lake County
AQI 45
Lassen County
AQI 59
Los Angeles County
AQI 53
Madera County
AQI 61
Marin County
AQI 17
Mariposa County
AQI 115
Mendocino County
AQI 45
Merced County
AQI 70
Modoc County
AQI 19
Mono County
AQI 7
Monterey County
AQI 57
Napa County
AQI 54
Nevada County
AQI 42
Orange County
AQI 34
Placer County
AQI 36
Plumas County
AQI 51
Riverside County
AQI 32
Sacramento County
AQI 51
San Benito County
AQI 37
San Bernardino County
AQI 28
San Diego County
AQI 58
San Francisco County
AQI 64
San Joaquin County
AQI 70
San Luis Obispo County
AQI 40
San Mateo County
AQI 54
Santa Barbara County
AQI 28
Santa Clara County
AQI 52
Santa Cruz County
AQI 37
Shasta County
AQI 56
Sierra County
AQI 51
Siskiyou County
AQI 24
Solano County
AQI 46
Sonoma County
AQI 37
Stanislaus County
AQI 82
Sutter County
AQI 52
Tehama County
AQI 56
Trinity County
AQI 17
Tulare County
AQI 56
Tuolumne County
AQI 33
Ventura County
AQI 40
Yolo County
AQI 56
Yuba County
AQI 51
Data Sources
http://www.airnow.gov/

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