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  4. Jefferson County

Jefferson County

Missouri

2026-04-28 04:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
72.9
PM10
μg/m³
13.8
PM2.5
μg/m³
5.1
SO2
μg/m³
3.1
Weather
  • ℃
  • ℉
16℃
99%
13 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • SO2
Places included
Arnold Township
AQI 31
Central Township
AQI 14
High Ridge Township
AQI 14
Imperial Township
AQI 14
Joachim Township
AQI 14
Meramec
AQI 14
Plattin Township
AQI 29
River View Township
AQI 14
Valle Township
AQI 30
Windsor Township
AQI 14
Data Sources
http://www.airnow.gov/

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