| År | Station | Nationell stationskod | Klassificering | Inlet-id | Medel sot µg/m³ | Antal dygn | Antal timmar | Max dygn sot µg/m³ | Tidsupplösning |
|---|---|---|---|---|---|---|---|---|---|
| 2011 | Aspvreten | 101 | Rural-Regional Background | 408 | 0.26 | 363 | 8712 | 1.67 | Hour |
| 2009 | Aspvreten | 101 | Rural-Regional Background | 408 | 0.28 | 359 | 8616 | 2.13 | Hour |
| 2005 | Aspvreten | 101 | Rural-Regional Background | 408 | 0.31 | 342 | 8208 | 2.36 | Hour |