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 | 361 | 45 | 41 | 170 | 83 | 100 |
| Summer | 153 | 41 | 41 | 108 | 65 | 70 |
| Winter | 151 | 48 | 44 | 170 | 93 | 101 |