Migration processes of _1hn1_1hn3_1hn7Cs in the drinking water reservoir Lago Maggiore [Elektronische Ressource] : measurements and modeling / von Viktoryia Putyrskaya

137Migration processes of Cs in the drinking water reservoir Lago Maggiore: Measurements and Modeling DISSERTATION Zur Erlangung des akademischen Grades Doctor rerum naturalium (Dr. rer. nat.) vorgelegt: der Fakultät Mathematik und Naturwissenschaften der Technischen Universität Dresden von Viktoryia Putyrskaya geboren am 05.06.1980 in Vileika, Belarus Gutachter: Prof. Dr. habil. Gert Bernhard Prof. Dr. Eckehard Klemt Eingereicht am: 19.05.2010 Tag der Verteidigung: 22.10.2010 ABSTRACT 137Artificial Cs has been introduced into the environment for more than half a century. Its first appearance in central European lake sediments corresponds to the nuclear weapons testing in the 1960s. The largest contamination of European lakes and rivers occurred as a consequence of the fallout after the Chernobyl accident in spring 1986. In this work the 137migration behaviour of artificial Cs in Lago Maggiore and other pre-alpine lakes as a consequence of these fallouts was studied. Lago Maggiore is one of the largest drinking water reservoirs in the south of the Alps. -2 137After the Chernobyl accident roughly 20 kBq·m of Cs were deposited onto the lake surface. From 2003 to 2005 bottom sediment cores and water samples were collected at 7 137different locations of Lago Maggiore.