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 | 186 | 61 | 54 | 306 | 122 | 148 |
| Summer | 76 | 52 | 48 | 306 | 81 | 93 |
| Winter | 74 | 73 | 68 | 188 | 147 | 156 |