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California

United States

2026-10-18 19:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
30.3
O3
μg/m³
91.6
PM2.5
μg/m³
6.9
NO2
μg/m³
7.9
CO
μg/m³
310.5
SO2
μg/m³
1.2
Weather
  • ℃
  • ℉
31℃
17%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 22
Alpine County
AQI 55
Amador County
AQI 31
Butte County
AQI 58
Calaveras County
AQI 31
Colusa County
AQI 42
Contra Costa County
AQI 44
Del Norte County
AQI 3
El Dorado County
AQI 28
Fresno County
AQI 49
Glenn County
AQI 29
Humboldt County
AQI 10
Imperial County
AQI 30
Inyo County
AQI 27
Kern County
AQI 31
Kings County
AQI 65
Lake County
AQI 5
Lassen County
AQI 3
Los Angeles County
AQI 33
Madera County
AQI 33
Marin County
AQI 17
Mariposa County
AQI 34
Mendocino County
AQI 16
Merced County
AQI 40
Modoc County
AQI 4
Mono County
AQI 7
Monterey County
AQI 27
Napa County
AQI 17
Nevada County
AQI 11
Orange County
AQI 42
Placer County
AQI 30
Plumas County
AQI 2
Riverside County
AQI 31
Sacramento County
AQI 34
San Benito County
AQI 32
San Bernardino County
AQI 30
San Diego County
AQI 33
San Francisco County
AQI 17
San Joaquin County
AQI 38
San Luis Obispo County
AQI 45
San Mateo County
AQI 18
Santa Barbara County
AQI 56
Santa Clara County
AQI 30
Santa Cruz County
AQI 30
Shasta County
AQI 34
Sierra County
AQI 10
Siskiyou County
AQI 25
Solano County
AQI 23
Sonoma County
AQI 16
Stanislaus County
AQI 44
Sutter County
AQI 58
Tehama County
AQI 32
Trinity County
AQI 4
Tulare County
AQI 66
Tuolumne County
AQI 32
Ventura County
AQI 34
Yolo County
AQI 30
Yuba County
AQI 58
Data Sources
http://www.airnow.gov/

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