1. Department of Applied Environmental
Science (ITM), Stockholm University, SE-10691
Stockholm, Sweden
2. Norwegian Geotechnical Institute (NGI), Oslo, Norway
3. Department of Aquatic Sciences
and Assessment, Swedish University of Agricultural Sciences (SLU), SE-750 07, Uppsala, Sweden
4. Department of Contaminant Research, Swedish Museum of Natural History, SE-104 05 Stockholm,
Sweden
5. Department of Plant
and Environmental
Sciences, Norwegian University of Life Sciences (UMB), P.O.Box 5003, N-1432, Ås, Norway