Sediment characterization and its implications for arsenic mobilization in deep aquifers of eastern Croatia

Sediments from two boreholes drilled in the Drava and Sava depressions were analyzed to determine the origin of the elevated arsenic (As) concentrations in groundwaters in eastern Croatia. The composition of the sediments was investigated by total chemical analysis and sequential extraction. In addi...

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Veröffentlicht in:	Journal of geochemical exploration 2013-03, Vol.126-127, p.55-66
Hauptverfasser:	Ujević Bošnjak, M., Casiot, C., Duić, Ž., Fazinić, S., Halamić, J., Sipos, L., Santo, V., Dadić, Ž.
Format:	Artikel
Sprache:	eng
Schlagworte:	Arsenic Boreholes Concentration (composition) Continental interfaces, environment Croatia Dissolution Earth Sciences Eastern Croatia Geochemistry Groundwater Iron Iron (hydr)oxides Reductive dissolution Sciences of the Universe Sediments Trace elements
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Beschreibung
Zusammenfassung:	Sediments from two boreholes drilled in the Drava and Sava depressions were analyzed to determine the origin of the elevated arsenic (As) concentrations in groundwaters in eastern Croatia. The composition of the sediments was investigated by total chemical analysis and sequential extraction. In addition, groundwater samples were taken from eight producing wells, and hydrochemical and trace element and As speciation analyses were performed. The concentrations of As in the sediment were high (up to 471 and 65.1mg/kg, in the
ISSN:	0375-6742 1879-1689
DOI:	10.1016/j.gexplo.2012.12.017