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  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-05-03 12:00
CAQI (Europe)
Very Low
Pollutants|Pollens
O3
μg/m³
47.1
PM10
μg/m³
14.3
PM2.5
μg/m³
8.4
SO2
μg/m³
1.7
Weather
  • ℃
  • ℉
11℃
67%
17 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • SO2
Places included
Airport Township
AQI 18
Bonhomme Township
AQI 16
Chesterfield Township
AQI 16
Clayton Township
AQI 18
Concord Township
AQI 14
Creve Coeur Township
AQI 18
Ferguson Township
AQI 18
Gravois Township
AQI 14
Hadley Township
AQI 13
Jefferson Township
AQI 16
Lemay Township
AQI 14
Lewis and Clark Township
AQI 18
Maryland Heights Township
AQI 30
Meramec Township
AQI 14
Midland Township
AQI 18
Missouri River Township
AQI 18
Normandy Township
AQI 15
Northwest Township
AQI 18
Norwood Township
AQI 18
Oakville Township
AQI 14
Queeny Township
AQI 14
Spanish Lake Township
AQI 22
St. Ferdinand Township
AQI 22
Tesson Ferry Township
AQI 14
University Township
AQI 15
Wildhorse Township
AQI 18
Data Sources
http://www.airnow.gov/

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