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California

United States

2026-10-16 13:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
6.3
PM10
μg/m³
34.6
O3
μg/m³
44.4
NO2
μg/m³
25.6
CO
μg/m³
571
SO2
μg/m³
1.6
Weather
  • ℃
  • ℉
10℃
71%
0 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 3
Amador County
AQI 14
Butte County
AQI 26
Calaveras County
AQI 25
Colusa County
AQI 32
Contra Costa County
AQI 53
Del Norte County
AQI 53
El Dorado County
AQI 38
Fresno County
AQI 75
Glenn County
AQI 26
Humboldt County
AQI 79
Imperial County
AQI 44
Inyo County
AQI 28
Kern County
AQI 55
Kings County
AQI 92
Lake County
AQI 38
Lassen County
AQI 30
Los Angeles County
AQI 37
Madera County
AQI 38
Marin County
AQI 29
Mariposa County
AQI 41
Mendocino County
AQI 42
Merced County
AQI 51
Modoc County
AQI 15
Mono County
AQI 14
Monterey County
AQI 49
Napa County
AQI 41
Nevada County
AQI 19
Orange County
AQI 45
Placer County
AQI 34
Plumas County
AQI 51
Riverside County
AQI 29
Sacramento County
AQI 55
San Benito County
AQI 26
San Bernardino County
AQI 30
San Diego County
AQI 22
San Francisco County
AQI 54
San Joaquin County
AQI 54
San Luis Obispo County
AQI 28
San Mateo County
AQI 31
Santa Barbara County
AQI 27
Santa Clara County
AQI 46
Santa Cruz County
AQI 22
Shasta County
AQI 33
Sierra County
AQI 52
Siskiyou County
AQI 23
Solano County
AQI 52
Sonoma County
AQI 25
Stanislaus County
AQI 55
Sutter County
AQI 31
Tehama County
AQI 32
Trinity County
AQI 27
Tulare County
AQI 48
Tuolumne County
AQI 33
Ventura County
AQI 66
Yolo County
AQI 30
Yuba County
AQI 35
Data Sources
http://www.airnow.gov/

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