Fractionation of cesium isotopes and90Sr in snowmelt run-off and lake waters from a contaminated Norwegian mountain catchment
作者： B. Salbu , H. E. Bjørnstad , J. E. Brittain
DOI: 10.1007/BF02037418
关键词: Snowmelt 、 Surface runoff 、 Drainage system (geomorphology) 、 Environmental science 、 Fractionation 、 Hydrology 、 Drainage basin 、 Cesium Isotopes 、 Radionuclide 、 Particulates
摘要: Cesium isotopes and90Sr have been determined in the inflow and outflow rivers of a Norwegian subalpine lake. The lake is situated an area contaminated by Chernobyl fallout. Sampling was carried out during spring peak discharge period associated with snowmelt. Transported coatse particulate plant material collected traps. Particles colloids were removed from water samples hollow fibre ultrafiltration. results illustrate that run-off snowmelt important pathway for these radionuclides. cesium are predominantly transported as colloids, while90Sr present form low molecular weight mobile species. Based on budget calculations, more than 50% input retained lake, while 90% the90Sr through into lower parts drainage system.
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