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California

United States

2026-10-09 09:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
6.8
PM10
μg/m³
31.5
O3
μg/m³
48.3
NO2
μg/m³
19.3
CO
μg/m³
342.3
SO2
μg/m³
1.2
Weather
  • ℃
  • ℉
22℃
49%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • O3
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 31
Alpine County
AQI 5
Amador County
AQI 19
Butte County
AQI 34
Calaveras County
AQI 29
Colusa County
AQI 64
Contra Costa County
AQI 28
Del Norte County
AQI 34
El Dorado County
AQI 31
Fresno County
AQI 79
Glenn County
AQI 66
Humboldt County
AQI 53
Imperial County
AQI 27
Inyo County
AQI 31
Kern County
AQI 47
Kings County
AQI 88
Lake County
AQI 48
Lassen County
AQI 25
Los Angeles County
AQI 38
Madera County
AQI 68
Marin County
AQI 13
Mariposa County
AQI 51
Mendocino County
AQI 43
Merced County
AQI 62
Modoc County
AQI 19
Mono County
AQI 20
Monterey County
AQI 50
Napa County
AQI 15
Nevada County
AQI 16
Orange County
AQI 50
Placer County
AQI 41
Plumas County
AQI 25
Riverside County
AQI 41
Sacramento County
AQI 32
San Benito County
AQI 26
San Bernardino County
AQI 34
San Diego County
AQI 45
San Francisco County
AQI 22
San Joaquin County
AQI 35
San Luis Obispo County
AQI 27
San Mateo County
AQI 45
Santa Barbara County
AQI 24
Santa Clara County
AQI 52
Santa Cruz County
AQI 30
Shasta County
AQI 26
Sierra County
AQI 25
Siskiyou County
AQI 45
Solano County
AQI 23
Sonoma County
AQI 22
Stanislaus County
AQI 51
Sutter County
AQI 47
Tehama County
AQI 37
Trinity County
AQI 39
Tulare County
AQI 82
Tuolumne County
AQI 29
Ventura County
AQI 29
Yolo County
AQI 40
Yuba County
AQI 46
Data Sources
http://www.airnow.gov/

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