| År | Station | Nationell stationskod | Klassificering | Inlet-id | Medel sot µg/m³ | Antal dygn | Antal timmar | Max dygn sot µg/m³ | Tidsupplösning |
|---|---|---|---|---|---|---|---|---|---|
| 2014 | Aspvreten | 101 | Rural-Regional Background | 408 | 0.29 | 350 | 8400 | 2.79 | Hour |
| 2013 | Aspvreten | 101 | Rural-Regional Background | 408 | 0.19 | 341 | 8184 | 2.61 | Hour |
| 2010 | Aspvreten | 101 | Rural-Regional Background | 408 | 0.29 | 364 | 8736 | 1.96 | Hour |
| 2009 | Aspvreten | 101 | Rural-Regional Background | 408 | 0.28 | 359 | 8616 | 2.13 | Hour |
| 2007 | Aspvreten | 101 | Rural-Regional Background | 408 | 0.33 | 313 | 7512 | 3.38 | Hour |