What Is Air Quality in Mason, Washington, WA?
Mason, Washington, WA has an Air Quality Grade of B with a 5-year median AQI of 24. The dominant pollutant is PM2.5.
Key Data
| Metric | Value |
|---|---|
| Air Quality Grade | B (76/100) |
| 5-Year Median AQI | 24 |
| Current Median AQI | 24 |
| Dominant Pollutant | PM2.5 |
| Trend | Improving |
| Unhealthy Days (5yr) | 13 |
Mason, Washington, WA has an Air Quality Grade of B with a 5-year median AQI of 24. The dominant pollutant is PM2.5.