| År | Station | Nationell stationskod | Klassificering | Inlet-id | Antal dygn | Årsmedel Ni in PM10 ng/m³ (MKN=20) | Tidsupplösning |
|---|---|---|---|---|---|---|---|
| 2017 | Aspvreten | 101 | Rural-Regional Background | 12 | 331 | 0.28 | Month |
| 2017 | Bredkälen | 102 | Rural Background | 21 | 359 | 0.10 | Month |
| 2014 | Aspvreten | 101 | Rural-Regional Background | 12 | 355 | 0.58 | Month |
| 2014 | Bredkälen | 102 | Rural Background | 21 | 354 | 0.14 | Month |