1. Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland
2. Fraunhofer Institute for Molecular Biology and Applied Ecology IME, 57392 Schmallenberg, Germany
3. Institute for Environmental Research (Biology V) 52074 Aachen, Germany
4. Institute of Biogeochemistry and Pollutant Dynamics, ETH Zürich, 8092 Zürich, Switzerland
5. EMPA, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland