AQI 35 · PM2.5 · Trend: Stable
| Average AQI | 35 |
| Good Days / Year | 285 |
| Unhealthy Days / Year | 3 |
| Primary Pollutant | PM2.5 |
| PM2.5 Average | 6 µg/m³ |
| Trend | → Stable |
| Monitoring Stations | 10 |
| Nonattainment Areas | 0 |
South Dakota has excellent air quality due to low population density, open terrain, and persistent Great Plains wind. The Black Hills and Badlands areas have some of the clearest visibility in the lower 48 states.
SD DANR Air Quality Program manages standards. Minimal industrial emission regulations needed due to limited industry.
No nonattainment areas. South Dakota has among the cleanest air in the nation.