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California

United States

2026-10-15 22:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
39.3
O3
μg/m³
104.5
PM2.5
μg/m³
4.8
NO2
μg/m³
8.6
CO
μg/m³
302.1
SO2
μg/m³
1.6
Weather
  • ℃
  • ℉
30℃
20%
8 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 45
Alpine County
AQI 21
Amador County
AQI 37
Butte County
AQI 41
Calaveras County
AQI 37
Colusa County
AQI 37
Contra Costa County
AQI 46
Del Norte County
AQI 15
El Dorado County
AQI 42
Fresno County
AQI 76
Glenn County
AQI 25
Humboldt County
AQI 33
Imperial County
AQI 32
Inyo County
AQI 28
Kern County
AQI 58
Kings County
AQI 89
Lake County
AQI 6
Lassen County
AQI 2
Los Angeles County
AQI 36
Madera County
AQI 60
Marin County
AQI 34
Mariposa County
AQI 33
Mendocino County
AQI 19
Merced County
AQI 58
Modoc County
AQI 2
Mono County
AQI 4
Monterey County
AQI 36
Napa County
AQI 9
Nevada County
AQI 4
Orange County
AQI 36
Placer County
AQI 39
Plumas County
AQI 2
Riverside County
AQI 33
Sacramento County
AQI 49
San Benito County
AQI 33
San Bernardino County
AQI 53
San Diego County
AQI 34
San Francisco County
AQI 31
San Joaquin County
AQI 51
San Luis Obispo County
AQI 39
San Mateo County
AQI 37
Santa Barbara County
AQI 34
Santa Clara County
AQI 36
Santa Cruz County
AQI 39
Shasta County
AQI 27
Sierra County
AQI 2
Siskiyou County
AQI 27
Solano County
AQI 32
Sonoma County
AQI 31
Stanislaus County
AQI 57
Sutter County
AQI 52
Tehama County
AQI 25
Trinity County
AQI 0
Tulare County
AQI 76
Tuolumne County
AQI 33
Ventura County
AQI 39
Yolo County
AQI 48
Yuba County
AQI 52
Data Sources
http://www.airnow.gov/

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