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California

United States

2025-12-17 13:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
10.1
PM10
μg/m³
18.4
NO2
μg/m³
22.1
O3
μg/m³
16.6
CO
μg/m³
561.1
SO2
μg/m³
2.5
Weather
  • ℃
  • ℉
6℃
100%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • NO2
  • O3
  • CO
  • SO2
Places included
Alameda County
AQI 52
Alpine County
AQI 28
Amador County
AQI 28
Butte County
AQI 42
Calaveras County
AQI 28
Colusa County
AQI 59
Contra Costa County
AQI 55
Del Norte County
AQI 50
El Dorado County
AQI 33
Fresno County
AQI 65
Glenn County
AQI 52
Humboldt County
AQI 25
Imperial County
AQI 61
Inyo County
AQI 17
Kern County
AQI 52
Kings County
AQI 60
Lake County
AQI 37
Lassen County
AQI 23
Los Angeles County
AQI 98
Madera County
AQI 84
Marin County
AQI 45
Mariposa County
AQI 29
Mendocino County
AQI 10
Merced County
AQI 75
Modoc County
AQI 5
Mono County
AQI 52
Monterey County
AQI 24
Napa County
AQI 52
Nevada County
AQI 55
Orange County
AQI 103
Placer County
AQI 38
Plumas County
AQI 14
Riverside County
AQI 52
Sacramento County
AQI 61
San Benito County
AQI 20
San Bernardino County
AQI 52
San Diego County
AQI 67
San Francisco County
AQI 58
San Joaquin County
AQI 62
San Luis Obispo County
AQI 30
San Mateo County
AQI 53
Santa Barbara County
AQI 20
Santa Clara County
AQI 60
Santa Cruz County
AQI 30
Shasta County
AQI 22
Sierra County
AQI 8
Siskiyou County
AQI 6
Solano County
AQI 51
Sonoma County
AQI 41
Stanislaus County
AQI 76
Sutter County
AQI 51
Tehama County
AQI 23
Trinity County
AQI 17
Tulare County
AQI 57
Tuolumne County
AQI 4
Ventura County
AQI 34
Yolo County
AQI 66
Yuba County
AQI 28
Data Sources
http://www.airnow.gov/

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