AQI 50 · PM2.5 · Trend: Improving
| Average AQI | 50 |
| Good Days / Year | 215 |
| Unhealthy Days / Year | 10 |
| Primary Pollutant | PM2.5 |
| PM2.5 Average | 9 µg/m³ |
| Trend | ↓ Improving |
| Monitoring Stations | 42 |
| Nonattainment Areas | 1 |
Michigan's air quality is tied to its auto manufacturing heritage. Detroit and surrounding Wayne County face the most significant challenges from industrial emissions and highway traffic. West Michigan cities like Grand Rapids enjoy notably cleaner air.
Michigan EGLE (Environment, Great Lakes, and Energy) Air Quality Division manages standards. Vehicle emissions testing in metro Detroit. Wayne County has enhanced monitoring.
Detroit-Ann Arbor — PM2.5 nonattainment. Wayne County (Detroit) — SO2 nonattainment. Legacy auto industry pollution remains a concern.