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  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-10-07 20:00
CAQI (Europe)
Medium
Pollutants|Pollens
O3
μg/m³
124.3
PM10
μg/m³
22.7
NO2
μg/m³
32.2
PM2.5
μg/m³
4.9
SO2
μg/m³
5.7
Weather
  • ℃
  • ℉
32℃
40%
17 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • NO2
  • PM2.5
  • SO2
Places included
Airport Township
AQI 28
Bonhomme Township
AQI 15
Chesterfield Township
AQI 15
Clayton Township
AQI 26
Concord Township
AQI 15
Creve Coeur Township
AQI 28
Ferguson Township
AQI 28
Gravois Township
AQI 20
Hadley Township
AQI 28
Jefferson Township
AQI 25
Lemay Township
AQI 15
Lewis and Clark Township
AQI 28
Maryland Heights Township
AQI 50
Meramec Township
AQI 54
Midland Township
AQI 28
Missouri River Township
AQI 20
Normandy Township
AQI 28
Northwest Township
AQI 28
Norwood Township
AQI 29
Oakville Township
AQI 15
Queeny Township
AQI 15
Spanish Lake Township
AQI 29
St. Ferdinand Township
AQI 29
Tesson Ferry Township
AQI 15
University Township
AQI 28
Wildhorse Township
AQI 15
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 15
Des Peres
AQI 15
Crystal Lake Park
AQI 15
Warson Woods
AQI 28
Rock Hill
AQI 28
Kirkwood
AQI 15
Frontenac
AQI 28
Glendale
AQI 15
Country Life Acres
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Oakland
AQI 15
Westwood
AQI 28