Heavy Metals in Bottom Sediments of Lake Kenon (The Trans-Baikal Territory, Russia)

被引：0
作者：
G. Ts. Tsybekmitova
A. P. Kuklin
V. I. Tsyganok
机构：
[1] Institute of Natural Resources,
[2] Ecology and Cryology SB RAS,undefined
来源：
Bulletin of Environmental Contamination and Toxicology | 2019年 / 103卷
关键词：
Coal-fired power plants; Lake; Bottom sediments; Heavy metals; Bioaccumulation; Geoaccumulation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Concentrations of heavy metals in bottom sediments of Lake Kenon in descending order are distributed as follows: Mn > Zn > Pb > Mo > Cd. Spatial distribution of metals in bottom sediments of Lake Kenon depends on composition of bottom deposits (sands in shallow water and sapropel silt in the deep part), location of contamination sources (thermal power station, residential area), as well as density and duration of growth of aquatic plants. The greatest pollution of bottom sediments was observed in the area of TPP-1. Due to the intense and all-year-round process of aquatic vegetation growth in the area of TPP-1 contaminants are being accumulated in the bottom sediments of this part of the lake. However, plants that absorb metals in excess amounts and are passively moved by currents through of the system become a source of contamination of bottom sediments in relatively clean parts of the water reservoirs.
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页码：286 / 291
页数：5
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