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 | 0.0009 | 0.0008 | 0.0070 | 0.0018 | 0.0024 |
| Summer | 83 | 0.0006 | 0.0006 | 0.0014 | 0.0010 | 0.0014 |
| Winter | 82 | 0.0012 | 0.0010 | 0.0070 | 0.0024 | 0.0032 |