TECHNOGENIC RADIONUCLIDES WITHIN THE FLOODPLAINS OF THE TECHA RIVER AND THE MIDDLE COURSES OF THE YENISEI RIVER
Author: Linnik V.G.
Reference: Bulletin of Moscow University series: Geography, 2011
ISSN: 0579-9414
DOI: 911.52; 574:539.1.04; 550.47
Keywords: river, 137cs, bottom sediments, floodplain area, soil
Abstract: The article analyzes 137Cs contamination of floodplain sediments of the Techa River and the middle courses of the Yenisei River as a result of discharges from the nuclear fuel plants. The results of field studies, both radiometric survey and sampling, are analyzed. The landscape differentiation of 137Cs contamination depends on specific features of suspended matter deposition on the floodplains. A secondary contamination zone was identified for the Techa River (up to 0,7 m) which was formed due to erosion of alluvial soils in the Asanov bogs and subsequent transfer of bottom sediments. Correlation between radionuclide contamination and duration of inundation for particular floodplain segments during 1960-2000 was analyzed for the Balchug floodplain area (the Yenisei River).
URL: http://elibrary.ru/item.asp?id=17094022
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