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California

United States

2026-01-02 09:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
6.1
O3
μg/m³
45.6
PM10
μg/m³
7.1
NO2
μg/m³
10.1
CO
μg/m³
360.1
SO2
μg/m³
0.8
Weather
  • ℃
  • ℉
8℃
99%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 24
Alpine County
AQI 28
Amador County
AQI 26
Butte County
AQI 16
Calaveras County
AQI 27
Colusa County
AQI 24
Contra Costa County
AQI 21
Del Norte County
AQI 17
El Dorado County
AQI 28
Fresno County
AQI 22
Glenn County
AQI 26
Humboldt County
AQI 43
Imperial County
AQI 18
Inyo County
AQI 35
Kern County
AQI 33
Kings County
AQI 34
Lake County
AQI 10
Lassen County
AQI 56
Los Angeles County
AQI 56
Madera County
AQI 17
Marin County
AQI 23
Mariposa County
AQI 35
Mendocino County
AQI 14
Merced County
AQI 22
Modoc County
AQI 5
Mono County
AQI 5
Monterey County
AQI 19
Napa County
AQI 6
Nevada County
AQI 24
Orange County
AQI 32
Placer County
AQI 30
Plumas County
AQI 121
Riverside County
AQI 43
Sacramento County
AQI 27
San Benito County
AQI 33
San Bernardino County
AQI 50
San Diego County
AQI 19
San Francisco County
AQI 28
San Joaquin County
AQI 21
San Luis Obispo County
AQI 50
San Mateo County
AQI 27
Santa Barbara County
AQI 13
Santa Clara County
AQI 20
Santa Cruz County
AQI 33
Shasta County
AQI 44
Sierra County
AQI 121
Siskiyou County
AQI 57
Solano County
AQI 23
Sonoma County
AQI 27
Stanislaus County
AQI 19
Sutter County
AQI 25
Tehama County
AQI 30
Trinity County
AQI 109
Tulare County
AQI 28
Tuolumne County
AQI 28
Ventura County
AQI 22
Yolo County
AQI 33
Yuba County
AQI 10
Data Sources
http://www.airnow.gov/

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