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California

United States

2026-10-16 12:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
6.4
PM10
μg/m³
31.5
O3
μg/m³
48.6
NO2
μg/m³
21.9
CO
μg/m³
492.2
SO2
μg/m³
1.2
Weather
  • ℃
  • ℉
12℃
54%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • PM10
  • O3
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 51
Alpine County
AQI 6
Amador County
AQI 14
Butte County
AQI 27
Calaveras County
AQI 25
Colusa County
AQI 32
Contra Costa County
AQI 55
Del Norte County
AQI 54
El Dorado County
AQI 30
Fresno County
AQI 73
Glenn County
AQI 26
Humboldt County
AQI 77
Imperial County
AQI 23
Inyo County
AQI 29
Kern County
AQI 39
Kings County
AQI 97
Lake County
AQI 40
Lassen County
AQI 30
Los Angeles County
AQI 40
Madera County
AQI 35
Marin County
AQI 15
Mariposa County
AQI 41
Mendocino County
AQI 40
Merced County
AQI 45
Modoc County
AQI 15
Mono County
AQI 8
Monterey County
AQI 45
Napa County
AQI 45
Nevada County
AQI 15
Orange County
AQI 33
Placer County
AQI 28
Plumas County
AQI 58
Riverside County
AQI 31
Sacramento County
AQI 54
San Benito County
AQI 26
San Bernardino County
AQI 32
San Diego County
AQI 24
San Francisco County
AQI 50
San Joaquin County
AQI 54
San Luis Obispo County
AQI 30
San Mateo County
AQI 39
Santa Barbara County
AQI 27
Santa Clara County
AQI 51
Santa Cruz County
AQI 26
Shasta County
AQI 32
Sierra County
AQI 58
Siskiyou County
AQI 37
Solano County
AQI 43
Sonoma County
AQI 35
Stanislaus County
AQI 54
Sutter County
AQI 35
Tehama County
AQI 30
Trinity County
AQI 12
Tulare County
AQI 62
Tuolumne County
AQI 33
Ventura County
AQI 36
Yolo County
AQI 36
Yuba County
AQI 38
Data Sources
http://www.airnow.gov/

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