| År | Station | Nationell stationskod | Klassificering | Inlet-id | Medel Bensen µg/m³ (MKN=5, EU2030=3.4, Miljömål=1) | Antal dygn | Antal timmar | Tidsupplösning |
|---|---|---|---|---|---|---|---|---|
| 2003 | Bollnäs | 1714 | Urban Background | 1313 | 2.11 | 89 | Week | |
| 2003 | Hudiksvall | 124 | Urban Background | 1347 | 2.46 | 176 | Week | |
| 2003 | Ljusdal | 11708 | Urban Background | 1385 | 1.55 | 87 | Week |