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California

United States

2026-10-17 11:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
6.1
PM10
μg/m³
34.5
O3
μg/m³
51.8
NO2
μg/m³
28.8
CO
μg/m³
625
SO2
μg/m³
1.6
Weather
  • ℃
  • ℉
12℃
54%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • O3
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 46
Alpine County
AQI 14
Amador County
AQI 17
Butte County
AQI 33
Calaveras County
AQI 30
Colusa County
AQI 54
Contra Costa County
AQI 58
Del Norte County
AQI 12
El Dorado County
AQI 19
Fresno County
AQI 55
Glenn County
AQI 20
Humboldt County
AQI 23
Imperial County
AQI 79
Inyo County
AQI 30
Kern County
AQI 33
Kings County
AQI 61
Lake County
AQI 32
Lassen County
AQI 68
Los Angeles County
AQI 51
Madera County
AQI 35
Marin County
AQI 19
Mariposa County
AQI 43
Mendocino County
AQI 32
Merced County
AQI 46
Modoc County
AQI 21
Mono County
AQI 7
Monterey County
AQI 44
Napa County
AQI 61
Nevada County
AQI 17
Orange County
AQI 31
Placer County
AQI 33
Plumas County
AQI 30
Riverside County
AQI 44
Sacramento County
AQI 52
San Benito County
AQI 29
San Bernardino County
AQI 26
San Diego County
AQI 87
San Francisco County
AQI 39
San Joaquin County
AQI 54
San Luis Obispo County
AQI 30
San Mateo County
AQI 39
Santa Barbara County
AQI 26
Santa Clara County
AQI 50
Santa Cruz County
AQI 31
Shasta County
AQI 42
Sierra County
AQI 30
Siskiyou County
AQI 25
Solano County
AQI 46
Sonoma County
AQI 55
Stanislaus County
AQI 54
Sutter County
AQI 46
Tehama County
AQI 42
Trinity County
AQI 28
Tulare County
AQI 52
Tuolumne County
AQI 32
Ventura County
AQI 33
Yolo County
AQI 43
Yuba County
AQI 40
Data Sources
http://www.airnow.gov/

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