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

St. Louis County

Missouri

2026-08-22 23:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
87.9
PM10
μg/m³
16.8
PM2.5
μg/m³
8.3
NO2
μg/m³
1.6
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
28℃
58%
13 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • SO2
Places included
Airport Township
AQI 18
Bonhomme Township
AQI 16
Chesterfield Township
AQI 16
Clayton Township
AQI 18
Concord Township
AQI 19
Creve Coeur Township
AQI 18
Ferguson Township
AQI 18
Gravois Township
AQI 16
Hadley Township
AQI 18
Jefferson Township
AQI 18
Lemay Township
AQI 16
Lewis and Clark Township
AQI 18
Maryland Heights Township
AQI 36
Meramec Township
AQI 38
Midland Township
AQI 18
Missouri River Township
AQI 16
Normandy Township
AQI 18
Northwest Township
AQI 18
Norwood Township
AQI 18
Oakville Township
AQI 29
Queeny Township
AQI 22
Spanish Lake Township
AQI 18
St. Ferdinand Township
AQI 18
Tesson Ferry Township
AQI 29
University Township
AQI 18
Wildhorse Township
AQI 15
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 15
Des Peres
AQI 15
Crystal Lake Park
AQI 15
Warson Woods
AQI 18
Rock Hill
AQI 18
Kirkwood
AQI 15
Frontenac
AQI 18
Glendale
AQI 15
Country Life Acres
AQI 15
Oakland
AQI 15
Westwood
AQI 18