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California

United States

2026-10-19 09:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
26.5
O3
μg/m³
53.9
PM2.5
μg/m³
6.1
NO2
μg/m³
14
CO
μg/m³
360
SO2
μg/m³
1
Weather
  • ℃
  • ℉
15℃
60%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 37
Alpine County
AQI 7
Amador County
AQI 12
Butte County
AQI 24
Calaveras County
AQI 17
Colusa County
AQI 31
Contra Costa County
AQI 30
Del Norte County
AQI 5
El Dorado County
AQI 16
Fresno County
AQI 45
Glenn County
AQI 5
Humboldt County
AQI 11
Imperial County
AQI 20
Inyo County
AQI 23
Kern County
AQI 31
Kings County
AQI 55
Lake County
AQI 4
Lassen County
AQI 7
Los Angeles County
AQI 34
Madera County
AQI 37
Marin County
AQI 19
Mariposa County
AQI 33
Mendocino County
AQI 17
Merced County
AQI 30
Modoc County
AQI 4
Mono County
AQI 10
Monterey County
AQI 15
Napa County
AQI 6
Nevada County
AQI 7
Orange County
AQI 44
Placer County
AQI 20
Plumas County
AQI 9
Riverside County
AQI 37
Sacramento County
AQI 19
San Benito County
AQI 20
San Bernardino County
AQI 28
San Diego County
AQI 39
San Francisco County
AQI 20
San Joaquin County
AQI 29
San Luis Obispo County
AQI 20
San Mateo County
AQI 7
Santa Barbara County
AQI 26
Santa Clara County
AQI 20
Santa Cruz County
AQI 20
Shasta County
AQI 58
Sierra County
AQI 3
Siskiyou County
AQI 15
Solano County
AQI 21
Sonoma County
AQI 19
Stanislaus County
AQI 38
Sutter County
AQI 28
Tehama County
AQI 58
Trinity County
AQI 12
Tulare County
AQI 40
Tuolumne County
AQI 20
Ventura County
AQI 36
Yolo County
AQI 20
Yuba County
AQI 19
Data Sources
http://www.airnow.gov/

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