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St. Louis

Missouri, United States

2025-12-15 14:00
AQI (China)
Good
Pollutants|Pollens
PM10
μg/m³
63.5
NO2
μg/m³
34.6
PM2.5
μg/m³
7.4
O3
μg/m³
27.9
CO
μg/m³
312.5
SO2
μg/m³
2.6
Weather
  • ℃
  • ℉
-8℃
61%
3 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • PM10
  • NO2
  • PM2.5
  • O3
  • CO
  • SO2
Places included
BLAIR STREET
AQI 21
BROADWAY (South)
AQI 6
Branch Street
AQI 78
Forest Park
AQI 19
Data Sources
http://www.airnow.gov/

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