[1] EAWAG, Swiss Fed Inst Aquat Sci & Technol, CH-8600 Dubendorf, Switzerland
[2] Swiss Fed Inst Technol, IBP, CH-8092 Zurich, Switzerland
[3] Swiss Fed Inst Technol Lausanne EPFL, ENAC, CH-1015 Lausanne, Switzerland
[4] Carnegie Mellon Univ, Dept Civil & Environm Engn, Pittsburgh, PA 15213 USA
[5] Michigan Technol Univ, Dept Chem, Houghton, MI 49931 USA
[6] Stanford Univ, Dept Civil & Environm Engn, Stanford, CA 94305 USA
[7] Stanford Univ, ReNUWIt, Stanford, CA 94305 USA
[8] Univ Minnesota, Hubert H Humphrey Sch Publ Affairs, Minneapolis, MN 55455 USA