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  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-05-03 08:00
CAQI (Europe)
Very Low
Pollutants|Pollens
PM2.5
μg/m³
13.8
PM10
μg/m³
18.8
O3
μg/m³
26.8
SO2
μg/m³
0.3
Weather
  • ℃
  • ℉
6℃
83%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • PM2.5
  • PM10
  • O3
  • SO2
Places included
Airport Township
AQI 27
Bonhomme Township
AQI 24
Chesterfield Township
AQI 24
Clayton Township
AQI 27
Concord Township
AQI 14
Creve Coeur Township
AQI 27
Ferguson Township
AQI 27
Gravois Township
AQI 15
Hadley Township
AQI 20
Jefferson Township
AQI 25
Lemay Township
AQI 14
Lewis and Clark Township
AQI 27
Maryland Heights Township
AQI 27
Meramec Township
AQI 19
Midland Township
AQI 27
Missouri River Township
AQI 27
Normandy Township
AQI 23
Northwest Township
AQI 27
Norwood Township
AQI 33
Oakville Township
AQI 19
Queeny Township
AQI 22
Spanish Lake Township
AQI 49
St. Ferdinand Township
AQI 49
Tesson Ferry Township
AQI 19
University Township
AQI 23
Wildhorse Township
AQI 27
Data Sources
http://www.airnow.gov/

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