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

被引：52

作者：

Putyrskaya, Victoria ^{[1
,2
]}

Klemt, Eckehard ^{[1
]}

Roellin, Stefan

机构：

[1] Univ Appl Sci, Hsch Ravensburg Weingarten, D-88250 Weingarten, Germany

[2] Int Sakharov Environm Univ, Minsk 220009, BELARUS

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2009年 / 100卷 / 01期

关键词：

Cs-137; Lake; Water; Sediment; Modeling; Lago Maggiore; Lago di Lugano; SURFACE WATERS; CHERNOBYL; RADIONUCLIDES; RADIOCESIUM; FALLOUT; CONTAMINATION; TRANSPORT; MODEL; FATE;

D O I：

10.1016/j.jenvrad.2008.10.005

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This paper describes the behaviour of Cs-137 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 Cs-137 distribution in tributaries, lake water, bottom sediments and reveals the role of Cs-137 as a marker of the sedimentation processes. The run-off of Cs-137 from the watershed to the lake is described with a simple compartment model. Measurements of the activity concentration of Cs-137 in sediments are compared with the output of a model (diffusion-convection type) which describes the input of Cs-137 into and its vertical distribution within the sediment. Varying sedimentation rates (0.05-0.90 g (cm(2) y)(-1)) in Lago Maggiore are compared with data of other authors. Sedimentation rates and total distribution coefficients (of about 10(5) L kg(-1)) in Lago Maggiore are discussed and compared with those of Lago di Lugano, Lake Constance, and Lake Vorsee. (c) 2009 Elsevier Ltd. All rights reserved.

引用

页码：35 / 48

页数：14

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