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Distribúcia potenciálne toxických prvkov v riečnych sedimentoch na lokalitách opustených Sb ložísk Dúbrava a Medzibrod (Nízke Tatry)

Author(s): Marián Petrák | Vladimír Čavajda | Peter Šottník

Journal: Acta Geologica Slovaca
ISSN 1338-0044

Volume: 3;
Issue: 2;
Start page: 143;
Date: 2011;
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Keywords: antimony | arsenic | abandoned Sb deposit | stream sediments | sequence analyse | Dúbrava | Medzibrod

This paper is focused on distribution of contamination in stream sediments surrounding of the abandoned Sb deposits of Dúbrava and Medzibrod. Our work aimed to define the accumulation of the mine-derived potential toxic elements (As, Sb) in stream sediments and to characterize their relatively mobility. Method of three step sequence analyses was used for better understanding physical - chemical processes of fixation, mobility and transportation of metals. We compared results from extraction with total contents of these elements for detection of potential values of migration in investigated element. Main pollutants of stream sediments are antimony and arsenic, with relatively higher concentrations of Fe, SO42-. The highest amounts of arsenic and antimony in stream sediments were estimated in Fe oxides, oxyhydroxides. Antimony may also form water-soluble compounds fractions in sulphates.
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