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California

United States

2026-08-19 21:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
109.2
PM10
μg/m³
38.1
PM2.5
μg/m³
7.9
NO2
μg/m³
8.4
CO
μg/m³
349
SO2
μg/m³
1.8
Weather
  • ℃
  • ℉
39℃
24%
13 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Alameda County
AQI 47
Alpine County
AQI 8
Amador County
AQI 50
Butte County
AQI 53
Calaveras County
AQI 50
Colusa County
AQI 59
Contra Costa County
AQI 35
Del Norte County
AQI 7
El Dorado County
AQI 46
Fresno County
AQI 71
Glenn County
AQI 43
Humboldt County
AQI 19
Imperial County
AQI 69
Inyo County
AQI 37
Kern County
AQI 61
Kings County
AQI 58
Lake County
AQI 15
Lassen County
AQI 5
Los Angeles County
AQI 69
Madera County
AQI 59
Marin County
AQI 18
Mariposa County
AQI 51
Mendocino County
AQI 18
Merced County
AQI 60
Modoc County
AQI 7
Mono County
AQI 9
Monterey County
AQI 58
Napa County
AQI 10
Nevada County
AQI 12
Orange County
AQI 59
Placer County
AQI 52
Plumas County
AQI 12
Riverside County
AQI 55
Sacramento County
AQI 46
San Benito County
AQI 51
San Bernardino County
AQI 58
San Diego County
AQI 44
San Francisco County
AQI 17
San Joaquin County
AQI 47
San Luis Obispo County
AQI 44
San Mateo County
AQI 26
Santa Barbara County
AQI 32
Santa Clara County
AQI 44
Santa Cruz County
AQI 34
Shasta County
AQI 52
Sierra County
AQI 12
Siskiyou County
AQI 43
Solano County
AQI 37
Sonoma County
AQI 23
Stanislaus County
AQI 58
Sutter County
AQI 50
Tehama County
AQI 55
Trinity County
AQI 4
Tulare County
AQI 59
Tuolumne County
AQI 51
Ventura County
AQI 52
Yolo County
AQI 54
Yuba County
AQI 50
Data Sources
http://www.airnow.gov/

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