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  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-10-13 12:00
AQI (China)
Excellent
Pollutants|Pollens
NO2
μg/m³
37.8
O3
μg/m³
60
PM10
μg/m³
17.6
PM2.5
μg/m³
4.2
SO2
μg/m³
7.4
Weather
  • ℃
  • ℉
21℃
64%
15 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • NO2
  • O3
  • PM10
  • PM2.5
  • SO2
Places included
Airport Township
AQI 19
Bonhomme Township
AQI 11
Chesterfield Township
AQI 11
Clayton Township
AQI 17
Concord Township
AQI 11
Creve Coeur Township
AQI 18
Ferguson Township
AQI 18
Gravois Township
AQI 14
Hadley Township
AQI 18
Jefferson Township
AQI 17
Lemay Township
AQI 11
Lewis and Clark Township
AQI 18
Maryland Heights Township
AQI 23
Meramec Township
AQI 15
Midland Township
AQI 18
Missouri River Township
AQI 14
Normandy Township
AQI 18
Northwest Township
AQI 18
Norwood Township
AQI 31
Oakville Township
AQI 11
Queeny Township
AQI 11
Spanish Lake Township
AQI 44
St. Ferdinand Township
AQI 44
Tesson Ferry Township
AQI 11
University Township
AQI 18
Wildhorse Township
AQI 11
Data Sources
http://www.airnow.gov/

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