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  4. St. Louis County

St. Louis County

Missouri

2026-10-12 21:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
100.7
PM10
μg/m³
18.6
NO2
μg/m³
17.5
PM2.5
μg/m³
3.7
SO2
μg/m³
3.7
Weather
  • ℃
  • ℉
32℃
41%
26 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • NO2
  • PM2.5
  • SO2
Places included
Airport Township
AQI 17
Bonhomme Township
AQI 14
Chesterfield Township
AQI 14
Clayton Township
AQI 17
Concord Township
AQI 14
Creve Coeur Township
AQI 17
Ferguson Township
AQI 17
Gravois Township
AQI 15
Hadley Township
AQI 17
Jefferson Township
AQI 17
Lemay Township
AQI 14
Lewis and Clark Township
AQI 17
Maryland Heights Township
AQI 31
Meramec Township
AQI 33
Midland Township
AQI 17
Missouri River Township
AQI 15
Normandy Township
AQI 17
Northwest Township
AQI 17
Norwood Township
AQI 32
Oakville Township
AQI 14
Queeny Township
AQI 14
Spanish Lake Township
AQI 47
St. Ferdinand Township
AQI 47
Tesson Ferry Township
AQI 14
University Township
AQI 17
Wildhorse Township
AQI 14
Data Sources
http://www.airnow.gov/

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Cities Nearby

Huntleigh
AQI 14
Des Peres
AQI 14
Crystal Lake Park
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Warson Woods
AQI 17
Rock Hill
AQI 17
Kirkwood
AQI 14
Frontenac
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Glendale
AQI 14
Country Life Acres
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Oakland
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Westwood
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