AQI 48 · PM2.5 · Trend: Variable (wildfires)
| Average AQI | 48 |
| Good Days / Year | 225 |
| Unhealthy Days / Year | 15 |
| Primary Pollutant | PM2.5 |
| PM2.5 Average | 8.5 µg/m³ |
| Trend | — Variable (wildfires) |
| Monitoring Stations | 22 |
| Nonattainment Areas | 0 |
Idaho generally has good air quality, but the Treasure Valley around Boise faces increasing challenges from wildfire smoke and winter temperature inversions. Agricultural burning in the Snake River Plain is a seasonal concern.
Idaho DEQ manages air quality. Treasure Valley has seasonal woodstove burning restrictions. Agricultural burning permits required.
No current nonattainment areas, though Boise/Treasure Valley has come close during severe wildfire and inversion events.