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 | 358 | 31 | 22 | 156 | 79 | 105 |
| Summer | 153 | 15 | 13 | 37 | 25 | 28 |
| Winter | 151 | 47 | 37 | 156 | 100 | 120 |