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 | 365 | 37 | 32 | 169 | 67 | 87 |
| Summer | 153 | 31 | 27 | 94 | 57 | 61 |
| Winter | 151 | 44 | 37 | 169 | 85 | 95 |