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California

United States

2026-10-16 23:00
AQI (US)
Good
Pollutants|Pollens
PM10
μg/m³
53.3
O3
μg/m³
112.4
PM2.5
μg/m³
5.4
NO2
μg/m³
10
CO
μg/m³
283.9
SO2
μg/m³
1.3
Weather
  • ℃
  • ℉
32℃
12%
7 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 65
Alpine County
AQI 17
Amador County
AQI 72
Butte County
AQI 43
Calaveras County
AQI 54
Colusa County
AQI 124
Contra Costa County
AQI 59
Del Norte County
AQI 34
El Dorado County
AQI 58
Fresno County
AQI 65
Glenn County
AQI 45
Humboldt County
AQI 45
Imperial County
AQI 111
Inyo County
AQI 41
Kern County
AQI 61
Kings County
AQI 72
Lake County
AQI 3
Lassen County
AQI 24
Los Angeles County
AQI 44
Madera County
AQI 71
Marin County
AQI 72
Mariposa County
AQI 49
Mendocino County
AQI 26
Merced County
AQI 69
Modoc County
AQI 15
Mono County
AQI 10
Monterey County
AQI 45
Napa County
AQI 26
Nevada County
AQI 50
Orange County
AQI 52
Placer County
AQI 57
Plumas County
AQI 9
Riverside County
AQI 45
Sacramento County
AQI 87
San Benito County
AQI 67
San Bernardino County
AQI 43
San Diego County
AQI 57
San Francisco County
AQI 42
San Joaquin County
AQI 65
San Luis Obispo County
AQI 46
San Mateo County
AQI 46
Santa Barbara County
AQI 45
Santa Clara County
AQI 67
Santa Cruz County
AQI 67
Shasta County
AQI 47
Sierra County
AQI 9
Siskiyou County
AQI 44
Solano County
AQI 65
Sonoma County
AQI 38
Stanislaus County
AQI 101
Sutter County
AQI 58
Tehama County
AQI 45
Trinity County
AQI 6
Tulare County
AQI 67
Tuolumne County
AQI 54
Ventura County
AQI 44
Yolo County
AQI 85
Yuba County
AQI 58
Data Sources
http://www.airnow.gov/

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