Table 1 Overview of the water samples from each sampling site and period
| Sampling site | Sampling period | Number of samples |
|---|---|---|
| O18 | May–November | 18 |
| E21 | May–October | 24 |
| N34 | May–November | 29 |
| N34 winter | December–April | 11 |
| M42 | May–November | 26 |
| M42 winter | December–April | 11 |
| M42 flow proportional | May–October | 20 |
| Skivarpsån | May–November | 9 |
| Vege å | May–November | 9 |
