12.07.2015 Views

Acta Facultatis Ecologiae - Technická univerzita vo Zvolene

Acta Facultatis Ecologiae - Technická univerzita vo Zvolene

Acta Facultatis Ecologiae - Technická univerzita vo Zvolene

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149Fig. 1 Podlipa dump-fieldCanada). Plant samples were divided into roots,branches/stems, leaves/needles and flowers/fruits.0.5 g of vegetation sample was after split digestionin HNO 3and then in Aqua Regia analysed byICP-MS for ultralow detection limits. The contaminationof live and dead parts was compared inseveral plants. Plants were analyzed in the samelaboratory as sediments. As and Sb were analysedin the laboratories of Geological Institute of theFaculty of Natural Sciences, Comenius University,Bratislava. The samples were pressure-decomposedin Aqua Regia and analysed using electrotermicatomization. The water samples were analyzedin the National Water Reference Laboratory forSlovakia at the Water Research Institute in Brati-slava. Microscopical analyses of plant tissues wererealized in the laboratories of the Department ofWood Science and Technology of the TechnicalUniversity Z<strong>vo</strong>len.RESULTS AND DISCUSSIONSediments and drainage watercontamination by heavy metalsTable 1 presents concentrations of Fe, Cu, Zn,Pb, Ag, Cd, Ni, Co, As and Sb in the sediments fromthe reference sites A and B and contaminated planesC – F. Soil from the reference site A contains surprisinglythe highest Zn concentrations. Sediments

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