1. Department of Water Resources and Drinking Water, Swiss Federal Institute of Aquatic Science and Technology (Eawag), 8600 Dübendorf, Switzerland
2. Department of Civil, Environmental and Geomatic Engineering, ETH Zürich, 8092 Zürich, Switzerland
3. Swiss Light Source, Paul Scherrer Institute, 5232 Villigen, Switzerland
4. Swiss Federal Laboratories for Materials Science and Technology (Empa), 8600 Dübendorf, Switzerland