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

St. Louis County

Missouri

2026-10-18 00:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
18.5
O3
μg/m³
36.4
NO2
μg/m³
19.3
PM2.5
μg/m³
4
SO2
μg/m³
0.6
Weather
  • ℃
  • ℉
9℃
67%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • O3
  • NO2
  • PM2.5
  • SO2
Places included
Airport Township
AQI 21
Bonhomme Township
AQI 14
Chesterfield Township
AQI 14
Clayton Township
AQI 20
Concord Township
AQI 14
Creve Coeur Township
AQI 21
Ferguson Township
AQI 21
Gravois Township
AQI 17
Hadley Township
AQI 21
Jefferson Township
AQI 20
Lemay Township
AQI 14
Lewis and Clark Township
AQI 21
Maryland Heights Township
AQI 21
Meramec Township
AQI 14
Midland Township
AQI 21
Missouri River Township
AQI 17
Normandy Township
AQI 21
Northwest Township
AQI 21
Norwood Township
AQI 23
Oakville Township
AQI 14
Queeny Township
AQI 14
Spanish Lake Township
AQI 26
St. Ferdinand Township
AQI 26
Tesson Ferry Township
AQI 14
University Township
AQI 21
Wildhorse Township
AQI 14
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 14
Des Peres
AQI 14
Crystal Lake Park
AQI 14
Warson Woods
AQI 21
Rock Hill
AQI 21
Kirkwood
AQI 14
Frontenac
AQI 21
Glendale
AQI 14
Country Life Acres
AQI 14
Oakland
AQI 14
Westwood
AQI 21