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 | 335 | 32 | 24 | 166 | 98 | 119 |
| Summer | 134 | 19 | 15 | 69 | 47 | 56 |
| Winter | 142 | 43 | 30 | 166 | 105 | 130 |