A unique effort to remediate mercurycontaminated lake sediments. The seminar in September 2002 was successful.
A multi-year project to clean up residual mercury pollution in Lake Turingen is underway in the Swedish municipality of Nykvarn. An old paper mill in Nykvarn, which is now closed, discharged the mercury.
In the first part of the project, two stretches of Turinge Creek – which flows between the mill and Lake Turingen – were remediated in 1995. During the second part, from 1999 to 2002, the lake is being remediated in two stages. Both of these entail capping of contaminated lake bottoms. Work in the first stage, carried out during 1999 and 2000, used conventional technology and focused on the most highly affected area just outside the mouth of the creek. During the second stage, which has just begun and will continue through 2002, about 80 % of the lake’s bottom area will be capped using artificial sediment in the form of a “gel”.
This project is financed primarily by Sweden’s Ministry of the Environment, the Swedish Environmental Protection Agency and the European Union’s Life Environment Fund. The Environmental Fund of Stockholm County, and the municipalities of Södertälje and Nykvarn have also contributed funds to the project.