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 | 195 | 0.56 | 0.49 | 1.51 | 1.11 | 1.42 |
| Summer | 83 | 0.43 | 0.43 | 0.81 | 0.61 | 0.64 |
| Winter | 82 | 0.70 | 0.70 | 1.51 | 1.37 | 1.48 |