4:30 PM - 4:45 PM
*Edith Horstmann1,2, Yama Tomonaga3, Matthias Brennwald1, Rolf Kipfer1,2 (1.Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland , 2.Department of Environmental System Sciences, ETH Zürich, Switzerland, 3.Institute of Geological Sciences, University of Bern, Switzerland)