1. Laboratory
of Environmental Chemistry, School of Architecture, Civil and Environmental
Engineering (ENAC), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
2. Pollution
Research Group, Faculty of Engineering, University of KwaZulu-Natal, Durban 4041, South Africa
3. Eawag: Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland