1. North America
  2. United States
  3. Missouri
  4. St. Louis County

St. Louis County

Missouri

2026-10-13 09:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
23.1
O3
μg/m³
72.9
NO2
μg/m³
18.9
PM2.5
μg/m³
5.7
SO2
μg/m³
14.9
Weather
  • ℃
  • ℉
21℃
65%
13 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • NO2
  • PM2.5
  • SO2
Places included
Airport Township
AQI 30
Bonhomme Township
AQI 10
Chesterfield Township
AQI 10
Clayton Township
AQI 26
Concord Township
AQI 10
Creve Coeur Township
AQI 30
Ferguson Township
AQI 30
Gravois Township
AQI 17
Hadley Township
AQI 30
Jefferson Township
AQI 25
Lemay Township
AQI 10
Lewis and Clark Township
AQI 30
Maryland Heights Township
AQI 30
Meramec Township
AQI 19
Midland Township
AQI 30
Missouri River Township
AQI 17
Normandy Township
AQI 30
Northwest Township
AQI 30
Norwood Township
AQI 37
Oakville Township
AQI 10
Queeny Township
AQI 10
Spanish Lake Township
AQI 44
St. Ferdinand Township
AQI 44
Tesson Ferry Township
AQI 10
University Township
AQI 30
Wildhorse Township
AQI 10
Data Sources
http://www.airnow.gov/

Get the App

Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

Huntleigh
AQI 10
Des Peres
AQI 10
Crystal Lake Park
AQI 10
Warson Woods
AQI 30
Rock Hill
AQI 30
Kirkwood
AQI 10
Frontenac
AQI 30
Glendale
AQI 10
Country Life Acres
AQI 10
Oakland
AQI 10
Westwood
AQI 30