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GEOCHEMICAL EXPLORATION OF CONTAMINATED SOILS IN SURROUNDING OF ABANDONED SB-MINES (SLOVAKIA)

AUTHOR/S: L. JURKOVIC, M. JANKULAR
Sunday 1 August 2010 by Libadmin2009

9th International Multidisciplinary Scientific GeoConference - SGEM2009, www.sgem.org, SGEM2009 Conference Proceedings/ ISBN 10: 954-91818-1-2, June 14-19, 2009, Vol. 2, 285-288 pp

ABSTRACT

Main aim of this study is characterization of environmental contamination in
surrounding of abandoned Sb-deposits in Slovakia by toxic elements as result of longtime
mining activity. Main scientific interest is focused on migration of toxic elements
in soil profile, their sources and bindings on Fe-oxyhydroxides or other natural sorbents,
possibility of input to aquatic systems in studied localities.
Results of chemical analyses of soil samples showed large-scale contamination of soil
profiles in studied localities. Especially the high level of As and Sb is the main problem
in investigated areas. Extremely high concentrations of As and Sb were observed in
fluvial soils surrounding of Sb-deposits. Determined high levels of As and Sb are
related to recent contamination by long-time outflow from adits and related to the
weathering of waste dump materials and to occurrence of ochre layer. Results of
sequential extraction experiment are important for bioavailability assessment focused on
As and Sb.

Keywords: soils, geochemistry, antimony, abandoned Sb-deposit, Slovakia

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