タグ「Yenisei river」
Author: L. G. Bondareva, A. Ya. Bolsunovskii
Reference: Radiochemistry, 2008
ISSN: 1608-3288
DOI: 10.1134/S1066362208050196
Keywords: bottom of river, 137cs, 60co, 152eu, 241am
Abstract: The speciation of artificial radionuclides 60Co, 137Cs, 152Eu, and 241Am in surface layers of bottom sediments of the Yenisei river, collected within the near zone of impact of the Mining and Chemical Combine (Rosatom), was studied. In these samples the radionuclides 60Co, 152Eu, and 241Am are mainly associated with fractions of humic and fulvic acids. The fraction of 152Eu associated with nonsilicate iron is approximately 92%. The migration capability of radionuclides collected near the Atamanovo settlement decreases in the order 152Eu > 241Am > 60Co > 137Cs. For samples collected near Bol’shoi Balchug settlement, this order is as follows: 152Eu ≈ 241Am > 60Co > 137Cs. The presence of radionuclide-bearing micro-particles in bottom sediments considerably complicates the distribution of radionuclides, in particular, of 241Am and 137Cs, among migration forms.
URL: http://link.springer.com/article/10.1134%2FS1066362208050196?LI=true#
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
Author: Korobova E.M., Ukraintseva H.G., Surkov V.V., Dombrovskaya E.A.
Reference: Gazette “КРИОСФЕРА ЗЕМЛИ“ (cryosphere of Earth),
ISSN: 1560-7496
DOI:504.054: 550.424.6 (551.464.679)
Keywords: river Yenisei, river Pechora, radionuclides, transfer, soil
Abstract: Observes anthropogenic contamination of rivers Yenisei and Pechora. Contamination by radionuclides and heavy metals in the soil of delta sectors is assessed. 137Cs in Pechora river. River transfers cesium. Concentration of radionuclides in Yenisei.
URL: http://elibrary.ru/item.asp?id=17097580
