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California

United States

2026-10-13 11:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
5.7
PM10
μg/m³
20.1
O3
μg/m³
41
NO2
μg/m³
15.5
CO
μg/m³
372.9
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
10℃
75%
2 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • O3
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 42
Alpine County
AQI 12
Amador County
AQI 28
Butte County
AQI 20
Calaveras County
AQI 28
Colusa County
AQI 28
Contra Costa County
AQI 25
Del Norte County
AQI 54
El Dorado County
AQI 28
Fresno County
AQI 46
Glenn County
AQI 19
Humboldt County
AQI 13
Imperial County
AQI 35
Inyo County
AQI 30
Kern County
AQI 42
Kings County
AQI 46
Lake County
AQI 52
Lassen County
AQI 19
Los Angeles County
AQI 32
Madera County
AQI 51
Marin County
AQI 28
Mariposa County
AQI 26
Mendocino County
AQI 50
Merced County
AQI 32
Modoc County
AQI 17
Mono County
AQI 12
Monterey County
AQI 51
Napa County
AQI 28
Nevada County
AQI 46
Orange County
AQI 33
Placer County
AQI 39
Plumas County
AQI 14
Riverside County
AQI 30
Sacramento County
AQI 39
San Benito County
AQI 29
San Bernardino County
AQI 34
San Diego County
AQI 25
San Francisco County
AQI 52
San Joaquin County
AQI 44
San Luis Obispo County
AQI 21
San Mateo County
AQI 48
Santa Barbara County
AQI 18
Santa Clara County
AQI 51
Santa Cruz County
AQI 38
Shasta County
AQI 23
Sierra County
AQI 14
Siskiyou County
AQI 24
Solano County
AQI 25
Sonoma County
AQI 18
Stanislaus County
AQI 52
Sutter County
AQI 32
Tehama County
AQI 24
Trinity County
AQI 34
Tulare County
AQI 52
Tuolumne County
AQI 25
Ventura County
AQI 22
Yolo County
AQI 33
Yuba County
AQI 41
Data Sources
http://www.airnow.gov/

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