Open AccessGeoecological assessment of the water quality and bottom deposits of middle lake Baikal
Author(s) -
M. S. Yanchuk,
I. B. Vorobyeva,
Н. В. Власова
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/381/1/012098
Subject(s) - brackish water , shore , water quality , environmental science , surface water , sulfate , hydrology (agriculture) , geology , salinity , oceanography , ecology , chemistry , environmental engineering , geotechnical engineering , biology , organic chemistry
The article describes the western coast of Lake Baikal from the mouth of the Kuchelga River to the Maloe More strait. It also presents the data of the comprehensive assessment of the quality of the surface water and bottom deposits of the water area and western shore of Baikal which was conducted in the summer of 2016-2017. The study of the hydrochemical composition of the Baikal water has been conducted in the course of the research as well as of the following Tazheran lakes: Tyzgyi-Nur, Kholbo-Nur, Shadar-Nur, Tsagan-Tyrym. It has been established that, based on the content of microcomponents, the still and weakly alkaline waters of Lake Baikal meet the standards of the maximum allowable concentrations (MAC) established for water bodies used for fishing and household purposes. The waters of the lakes refer to the hydrocarbonate type, calcium group. Based on their sum of ion, the lakes of Tyzgyi-Nur, Kholbo-Nur, Shadar-Nur and Tsagan-Tyrym refer to the brackish type, the waters of these lakes mostly have the hydrocarbonate and magnesium content with a predominance of sulfate ion. The levels of the content of heavy metals (V, Cr, Mn, Co, Ni, Cu) in the water and bottom deposits have also been identified.