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St. Louis

Missouri, United States

2026-09-12 17:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
126.4
PM10
μg/m³
13.5
PM2.5
μg/m³
8.3
NO2
μg/m³
7
SO2
μg/m³
8.9
CO
μg/m³
250
Weather
  • ℃
  • ℉
32℃
53%
7 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • SO2
  • CO
Places included
BLAIR STREET
AQI 40
BROADWAY (South)
AQI 8
Branch Street
AQI 15
Forest Park
AQI 20
Data Sources
http://www.airnow.gov/

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