Contamination of sediment deposits at the backwater level ends in Waterwork Ruzin I by some heavy metals
2004
Brehuv, J.,Slovak Academy of Sciences, Kosice (Slovak Republic). Institute of Geotechnics | Bobro, M.,Slovak Academy of Sciences, Kosice (Slovak Republic). Institute of Geotechnics | Hanculak, J.,Slovak Academy of Sciences, Kosice (Slovak Republic). Institute of Geotechnics
The major part of sediment deposits is situated in the localities, where Hnilec, Hornad, Bela and Opatka rivers flow into the water reservoir of Waterwork Ruzin I. The analysis of sediment deposits for heavy metals (HM) showed the following results. Except for Cu, Co and Ni, the small tributary Bela creates sediment deposits with a low content of HM compared with the requirements of the Methodical Instruction of the Ministry of the Environment of the Slovak Republic No. 549/1998-2. The sediment deposits of the second small tributary Opatka have a similar composition, only the content of Cu exceeds the admissible concentration specified by the Instruction. The analyses of sediment deposits in the Hnilec river proved a high content of Cu and the increased content of Co and Ni. The sediment deposits of the Hornad river are heavily contaminated by HM, especially by Hg.
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