Identifiering av riskområden där sulfidsediment oxideras till följd av grundvattensänkning Fallstudie av fem vattendrag vid Norrbottenskusten
Streams in Norrbotten County, near the coast of the Gulf of Bothnia in northern Sweden, suffer from recurrent episodes of low pH and high metal concentrations, which have resulted in fish kills and cadmium levels exceeding environmental quality standards defined in the EU Water Framework Directive. The cause of these acid episodes is that sulfide sediments, which are quite common under the highest