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
| Metric | Value |
|---|---|
| Air Quality Grade | C (53/100) |
| 5-Year Median AQI | 55 |
| Current Median AQI | 58 |
| Dominant Pollutant | PM2.5 |
| Trend | Stable |
| 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.