Informace o publikaci

PCDDs, PCDFs, PCBs and OCPs in sediments from selected areas in the Slovak Republic

Autoři	ČONKA Kamil CHOVANCOVA Jana SEJAKOVA Zuzana Stachova DOEMOETOEROVA Milena FABIŠIKOVÁ Anna DROBNA Beata KOČAN Anton
Rok publikování	2014
Druh	Článek v odborném periodiku
Časopis / Zdroj	Chemosphere
Fakulta / Pracoviště MU	Přírodovědecká fakulta
Citace
www	http://www.sciencedirect.com/science/article/pii/S0045653513013386
Doi	http://dx.doi.org/10.1016/j.chemosphere.2013.09.068
Obor	Znečištění a kontrola vody
Klíčová slova	Polychlorinated dibenzo-p-dioxins; Polychlorinated dibenzofurans; Polychlorinated biphenyls; Organochlorine pesticides; Sediment; Slovakia
Popis	Within our research project, 34 river bottom sediments were collected in 2006-2007 at five areas across Slovakia with industrial sources of persistent organic pollutants (Kosice, Krompachy, Nemecka, Sala, Novaky) and one background area (Starina). Sediments were analyzed for seven 2,3,7,8-substituted polychlorinated dibenzo-p-dioxins (PCDDs) and 10 dibenzofurans (PCDFs), 12 dioxin-like and 6 indicator polychlorinated biphenyls (PCBs), hexachlorobenzene (HCB) and 1,1,1,-trichloro-2,2-bis(p-chlorophenyl)ethane (p,p'-DDT) with 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (p,p'-DDE). Analytical procedure based on accelerated solvent extraction followed by a semi-automated clean-up and fractionation was used. Determination of target compounds was performed by HRGC-HRMS analysis. Total WHO toxic equivalent WHO1998-PCDD/F/dl-PCB-TEQ concentrations ranged from 0.26 to 559 pg TEQ g(-1) dry matter (dm), with a median 2.2 pg TEQ g(-1) dm. The sums of six indicator PCBs were in the range 0.56-1014 ng g(-1) dm, with a median 11.8 ng g(-1) dm. The concentrations of organochlorine pesticides HCB and p,p'-DDE/DDT varied from 0.15 to 34.8 ng g(-1) dm, with a median 0.91 ng g(-1), dm and 0.46-34.1 ng g(-1) dm, with a median 6.7 ng g(-1) dm, respectively. The most abundant congeners in all sediment samples among dioxins, furans and PCBs were OCDD, 1,2,3,4,6,7,8-HpCDF, PCB-118 and PCB-153. (C) 2013 Elsevier Ltd. All rights reserved.