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 | 363 | 33 | 31 | 107 | 71 | 79 |
| Summer | 152 | 33 | 30 | 99 | 68 | 82 |
| Winter | 150 | 30 | 25 | 107 | 68 | 78 |