Evaluation of metal content in perch of the Ob River basin

19th International Scientific Symposium in honor of Academician M.A. Usov "Problems of Geology and Subsurface Development"

Osipova, N.A.^1 ; Stepanova, K.D.^1 ; Matveenko, I.A.^1

National Research Tomsk Polytechnic University, 30 Lenin Ave., Tomsk

634050, Russia^1

关键词: Atomic absorption;    Contaminated water;    Geochemical features;    Mercury analyzers;    Mercury concentrations;    Mercury content;    Metal content;    Stripping voltammetry;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/27/1/012041/pdf
DOI  :  10.1088/1755-1315/27/1/012041

来源: IOP

【 摘 要 】

The geochemical features of river perch in the River Ob basin have been studied (the upper and middle reaches of the Ob River and the lower reach of the Tom River). The contents of Ag, Bi, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, Sn, W, Zn, Hg in perch's soft tissue are defined by the methods of ICP AES and stripping voltammetry, that of mercury in bones - by the atomic absorption method using mercury analyzer PA-915+. The distribution series of metal absolute concentrations in perch's soft tissue from the Ob River basin are plotted: Fe > Zn > Cu > Mn, typical for uncontaminated or slightly metal contaminated water bodies. In soft tissue of the studied samples the metal content does not exceed the permissible values. The mercury content in bones of studied samples is in the range 0,036-0,556 mg/kg. The mercury concentration is higher in bones in comparison with soft tissue in all samples.