Mercury and radionuclides in sediments of the Kastela Bay (Croatia) - evaluation of the sediment pollution history

Mikac, Nevenka; Foucher, Delphine; Kwokal, Željko; Barišić, Delko (2006) Mercury and radionuclides in sediments of the Kastela Bay (Croatia) - evaluation of the sediment pollution history. Croatica Chemica Acta, 79 (1). pp. 85-93. ISSN 0011-1643

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Abstract

Mercury and radionuclides (natural U and its decay series products and artificial (CS)-C-137) were measured in sediments of the Kastela Bay (eastern Adriatic coast) in the vicinity of a former chloralkali plant. The depth distributions of radionuclides and mercury revealed that sediments in front of the factory represent a mixture of natural sediment and coal ash originating from the coal used in the factory power plant. Based on this data, the hypothesis that the coal ash from the factory power plant was dumped into the sea was confirmed, and it was estimated (from Cs-137 depth profile) that the dumping happened between 1986 and 1991. Data on the artificial radionuclide Cs-137 was shown to be very useful for evaluation of the sediment pollution history even in such very disturbed sediments. Future monitoring of mercury pollution and radionuclides in the Kastela Bay is suggested.

Item Type:	Article
Uncontrolled Keywords:	mercury; radionuclides; Kastela Bay; pollution history; adriatic sea; marine-sediments; organic-matter; trace-metals; area; contamination; methylmercury; estuary; lagoon; fish
Subjects:	NATURAL SCIENCES > Chemistry
Divisions:	Division for Marine and Enviromental Research
Projects:	Project title Project leader Project code Project type Fizikalna i biogeo-kemija tragova metala u vodenim sustavima Ivanka Pižeta 0098121 MZOS Radionuklidi u prirodnim sustavima Delko Barišić 0098128 MZOS Geokemija recentnih i starih sedimentacijskih sustava Jadranske platforme Goran Kniewald 0098132 MZOS
Depositing User:	Nevenka Mikac
Date Deposited:	29 Oct 2013 13:13
URI:	http://fulir.irb.hr/id/eprint/865

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