Air Quality in Vermont
Vermont has 4 counties with EPA air quality monitoring. Air quality is generally improving across the state, with an average of 265 "Good" days per county per year. The best air quality is in Windham (median AQI 12) and the most polluted is Chittenden (median AQI 37).
| County | Median AQI | Max AQI | Good Days | Unhealthy Days | Trend | Top Pollutant |
|---|---|---|---|---|---|---|
| Bennington | 36 | 80 | 332 | 0 | → stable | Ozone |
| Chittenden | 37 | 84 | 323 | 0 | → stable | Ozone |
| Rutland | 37 | 86 | 291 | 0 | → stable | Ozone |
| Windham | 12 | 69 | 116 | 0 | ↓ improving | PM2.5 |