The mean concentrations of As, Cr and Cu also exceeded the first threshold of national dredging guideline in the R. Kyrönjoki 3, R. Perhonjoki and R. Laihianjoki study sites, respectively.
The mean concentrations of As, Cr and Cu also exceeded the first threshold of national dredging guideline in the R. Kyrönjoki 3, R. Perhonjoki and R. Laihianjoki study sites, respectively.