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AirHistory

What Is Air Quality in St. Louis City, Missouri, MO?

St. Louis City, Missouri, MO has an Air Quality Grade of C with a 5-year median AQI of 55. The dominant pollutant is PM2.5.

Key Data

MetricValue
Air Quality GradeC (53/100)
5-Year Median AQI55
Current Median AQI58
Dominant PollutantPM2.5
TrendStable
Unhealthy Days (5yr)38

St. Louis City, Missouri, MO has an Air Quality Grade of C with a 5-year median AQI of 55. The dominant pollutant is PM2.5.