| År | Station | Nationell stationskod | Klassificering | Inlet-id | Medel Bensen µg/m³ (MKN=5, Miljömål=1) | Antal dygn | Antal timmar | Tidsupplösning |
|---|---|---|---|---|---|---|---|---|
| 2006 | Burlöv | 1282 | Urban Background | 1320 | 1.14 | 134 | Week | |
| 2006 | Västerås Stadshuset | 8777 | Urban Background | 2011 | 3.86 | 347 | 8325 | Hour |
| 2005 | Burlöv | 1282 | Urban Background | 1320 | 0.94 | 62 | Week | |
| 2005 | Västerås Stadshuset | 8777 | Urban Background | 2011 | 3.00 | 6 | 147 | Hour |
| 2004 | Västerås Stadshuset | 8777 | Urban Background | 2011 | 3.11 | 99 | 2364 | Hour |