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California

United States

2026-01-11 23:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
72
PM10
μg/m³
12.3
PM2.5
μg/m³
6.5
NO2
μg/m³
10.5
CO
μg/m³
384.9
SO2
μg/m³
1.5
Weather
  • ℃
  • ℉
15℃
50%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 20
Alpine County
AQI 31
Amador County
AQI 19
Butte County
AQI 22
Calaveras County
AQI 22
Colusa County
AQI 18
Contra Costa County
AQI 22
Del Norte County
AQI 16
El Dorado County
AQI 21
Fresno County
AQI 23
Glenn County
AQI 17
Humboldt County
AQI 21
Imperial County
AQI 29
Inyo County
AQI 25
Kern County
AQI 24
Kings County
AQI 18
Lake County
AQI 7
Lassen County
AQI 5
Los Angeles County
AQI 30
Madera County
AQI 24
Marin County
AQI 22
Mariposa County
AQI 25
Mendocino County
AQI 18
Merced County
AQI 22
Modoc County
AQI 2
Mono County
AQI 29
Monterey County
AQI 27
Napa County
AQI 8
Nevada County
AQI 9
Orange County
AQI 31
Placer County
AQI 21
Plumas County
AQI 1
Riverside County
AQI 29
Sacramento County
AQI 17
San Benito County
AQI 25
San Bernardino County
AQI 28
San Diego County
AQI 30
San Francisco County
AQI 16
San Joaquin County
AQI 21
San Luis Obispo County
AQI 25
San Mateo County
AQI 17
Santa Barbara County
AQI 25
Santa Clara County
AQI 23
Santa Cruz County
AQI 26
Shasta County
AQI 25
Sierra County
AQI 1
Siskiyou County
AQI 19
Solano County
AQI 20
Sonoma County
AQI 19
Stanislaus County
AQI 25
Sutter County
AQI 20
Tehama County
AQI 23
Trinity County
AQI 16
Tulare County
AQI 24
Tuolumne County
AQI 18
Ventura County
AQI 30
Yolo County
AQI 22
Yuba County
AQI 23
Data Sources
http://www.airnow.gov/

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