Monthly average concentrations
Measuring period: April 1994 - March 1995| Period | Nr. of samples | Cavg (ug/m3) | C50
(ug/m3) | Cmax (ug/m3) |
C95 (ug/m3) | C98 (ug/m3) |
| All | 364 | 34 | 30 | 139 | 67 | 78 |
| Summer | 152 | 30 | 28 | 78 | 56 | 69 |
| Winter | 151 | 38 | 33 | 139 | 72 | 81 |