Migration of Cs-137 in tributaries, lake water and sediment of Lago Maggiore (Italy, Switzerland) analysis and comparison with Lago di Lugano and other lakes. (Peer-Reviewed Article) - Detailansicht

Grunddaten

Titel der Arbeit (title)	Migration of Cs-137 in tributaries, lake water and sediment of Lago Maggiore (Italy, Switzerland) analysis and comparison with Lago di Lugano and other lakes.
Titel der Zeitschrift bzw. Zeitung	Journal of Environmental Radioactivity
Erscheinungsjahr	2009
Verlag (publisher)	Elsevier Science Ltd.
Seitenzahl (pages)	35-48
Band (volume)	Volume 100, No. 1, January 2009
Publikationsart	Peer-Reviewed Article

Inhalt
Abstract	This paper describes the behaviour of 137Cs in Lago Maggiore and other pre-alpine lakes as a consequence of atmospheric nuclear weapons testing fallout and the fallout from the nuclear accident in Chernobyl. It presents data on the 137Cs distribution in tributaries, lake water, bottom sediments and reveals the role of 137Cs as a marker of the sedimentation processes. The run-off of 137Cs from the watershed to the lake is described with a simple compartment model. Measurements of the activity concentration of 137Cs in sediments are compared with the output of a model (diffusionconvection type) which describes the input of 137Cs into and its vertical distribution within the sediment. Varying sedimentation rates (0.05 0.90 g (cm2 y)-1) in Lago Maggiore are compared with data of other authors. Sedimentation rates and total distribution coefficients (of about 105 L kg-1) in Lago Maggiore are discussed and compared with those of Lago di Lugano, Lake Constance, and Lake Vorsee.