Geochemical characteristics of microelement distribution in surface sediments of Ust-Ilimsk Reservoir

7th International Scientific Practical Conference "Modern problems of reservoirs and their catchments"

自然科学（总论）

Poletaeva, V.I.^1^2 ; Pastukhov, M.V.^1 ; Dolgikh, P.G.^1

Vinogradov Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences, Irkutsk

664033, Russia^1

Irkutsk National Research Technical University, Irkutsk

664074, Russia^2

关键词: Anthropogenic sources;    Bottom sediments;    Geochemical characteristic;    Microelement distribution;    Potentially toxic elements;    Reservoir area;    Surface sediments;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/321/1/012042/pdf
DOI  :  10.1088/1755-1315/321/1/012042

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

This research examines the characteristics of spatial distribution of As, Pb, Hg, Cd, Zn, Ni, Co, Cu, Cr in bottom sediments of Ust-Ilimsk reservoir. Two zones of the reservoir with elevated accumulation levels of potentially toxic elements have been determined: Vihorevsky bay (inflow from anthropogenic sources) and the reservoir area near the dam (inflow from natural and anthropogenic sources). Mobility of studied trace elements and the probability of the secondary contamination has been assessed based on the determined speciation of trace elements in bottom sediments.