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California

United States

2026-10-19 11:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
21.4
O3
μg/m³
51.3
PM2.5
μg/m³
5.6
NO2
μg/m³
13.6
CO
μg/m³
356.1
SO2
μg/m³
1.1
Weather
  • ℃
  • ℉
17℃
43%
8 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 32
Alpine County
AQI 5
Amador County
AQI 13
Butte County
AQI 24
Calaveras County
AQI 15
Colusa County
AQI 18
Contra Costa County
AQI 22
Del Norte County
AQI 6
El Dorado County
AQI 15
Fresno County
AQI 30
Glenn County
AQI 13
Humboldt County
AQI 12
Imperial County
AQI 19
Inyo County
AQI 20
Kern County
AQI 33
Kings County
AQI 38
Lake County
AQI 6
Lassen County
AQI 8
Los Angeles County
AQI 37
Madera County
AQI 25
Marin County
AQI 20
Mariposa County
AQI 33
Mendocino County
AQI 12
Merced County
AQI 25
Modoc County
AQI 4
Mono County
AQI 10
Monterey County
AQI 16
Napa County
AQI 6
Nevada County
AQI 6
Orange County
AQI 38
Placer County
AQI 20
Plumas County
AQI 9
Riverside County
AQI 28
Sacramento County
AQI 18
San Benito County
AQI 17
San Bernardino County
AQI 30
San Diego County
AQI 36
San Francisco County
AQI 21
San Joaquin County
AQI 25
San Luis Obispo County
AQI 20
San Mateo County
AQI 5
Santa Barbara County
AQI 24
Santa Clara County
AQI 19
Santa Cruz County
AQI 18
Shasta County
AQI 27
Sierra County
AQI 1
Siskiyou County
AQI 13
Solano County
AQI 21
Sonoma County
AQI 19
Stanislaus County
AQI 35
Sutter County
AQI 27
Tehama County
AQI 27
Trinity County
AQI 10
Tulare County
AQI 48
Tuolumne County
AQI 20
Ventura County
AQI 34
Yolo County
AQI 19
Yuba County
AQI 13
Data Sources
http://www.airnow.gov/

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