1. Eawag, Swiss Federal Institute of Aquatic Science and Technology, CH-8600 Dübendorf, Switzerland
2. Center for Environmental Diagnostics & Bioremediation, University of West Florida, Pensacola, Florida 32514-5751, United States
3. Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, CH-8092 Zürich, Switzerland