Content of Trace Elements and Heavy Metals in the Dnieper-Bug Bottom Sediments

E. A. Kotelyanets, T. V. Khmara*

Marine Hydrophysical Institute RAS, Sevastopol, Russia

* e-mail: xmara@mhi-ras.ru

Abstract

The paper presents the content of trace elements (As, Ti) and heavy metals (Pb, Zn, Cu, Ni, Co, Cr, V, Sr, Fe, Mn) in the surface layer of the Dnieper-Bug estuary bottom sediments according to their particle size distribution. Analysis of the results revealed areas of increased content of these trace elements and heavy metals in the bottom sediments of the waters under study. Two groups of elements are distinguished given the peculiarities of their spatial distribution: in the Bug estuary water area, maximum concentrations of Cr, Co, Sr, Zn, V, Ti were determined, whereas in the western part of the Dnieper-Bug estuary, maximum concentrations of Cu, Fe, Mn were determined. Samples of bottom sediments were taken in the upper layer of the Dnieper-Bug estuary sediments during a hydrological-hydrochemical survey in September 2007. Trace elements and heavy metals content in the bottom sediments were determined using the X-ray fluorescence method. The level is estimated of bottom sediments contamination with trace elements and heavy metals through its comparison with the data obtained in previous studies of shallow water areas (the Sevastopol and Balaklava Bays). The features are considered of the spatial distribution of trace elements and heavy metals in the bottom sediments of the Dnieper-Bug estuary given its water dynamics, which is extremely complex there.

Keywords

bottom sediments, particle size distribution, trace elements, heavy metals, hydrodynamics, Dnieper-Bug estuary

Acknowledgments

The research is performed under state order on topic No. 0827-2019-0004 “Complex interdisciplinary research of oceanologic processes, which determine functioning and evolution of the Black and Azov Sea coastal ecosystems”. The authors are grateful to Elena E. Sovga, Dr.Sci. (Geogr.), for assistance with preparation of the paper and valuable comments in the course of its composition.

For citation

Kotelyanets, E.A. and Khmara, T.V., 2020. Content of Trace Elements and Heavy Metals in the Dnieper-Bug Bottom Sediments. Ecological Safety of Coastal and Shelf Zones of Sea, (2), pp. 141–151. doi:10.22449/2413-5577-2020-1-140-151 (in Russian).

DOI

10.22449/2413-5577-2020-2-140-151

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