1. Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland
2. School of Architecture, Civil and Environmental Engineering, EPFL Lausanne, 1015 Lausanne, Switzerland
3. Food Packaging Forum Foundation, 8045 Zürich, Switzerland
4. Swiss Federal Institute of Technology, Department of Environmental Systems Science, ETH Zürich, 8092 Zürich, Switzerland