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Title
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Polychlorinated biphenyl and organochlorine pesticide contamination signatures in deep-sea fish from the Mediterranean Sea
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Author
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Abstract
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| Polychlorinated biphenyl (PCB) and OCP concentrations were determined in the livers of two deep-sea fish species, roughsnout grenadier and hollowsnout grenadier, from the Adriatic Sea. In both species, contaminant concentrations were in the following order: PCBs>DDTs>>HCB. Contaminant load was higher in roughsnout grenadier (PCB: 12,327 ng g−1; DDTs: 5357 ng g−1; HCB: 13.1 ng g−1) than in hollowsnout grenadier (PCB: 1234 ng g−1; DDTs: 763 ng g−1; HCB 6.3 ng g−1). PCB patterns were dominated by higher chlorinated congeners (hexa-CBs: 50.3¨C52.1%, hepta-CBs: 29.6¨C35.5%, penta-CBs: 8.0¨C11.1% and octa-CBs :5.2¨C5.4%). PCBs 138, 153 180 and 187 were the most abundant. Regarding the DDT pattern, p,p¡ä-DDE was prevalent in both species (roughsnout grenadier: 99.7%, hollowsnout grenadier: 90%), suggesting no recent DDT input. In both species, the total 2,3,7,8-tetrachlorodibenzo-p-dioxin toxic equivalent (TEQ) concentrations (roughsnout grenadier: mean 43.77 pg/g, hollowsnout grenadier: mean 20.49 pg/g), calculated from non- and mono-ortho PCBs, reached those encountered in marine organisms at higher levels in the trophic chain. |
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Language
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English
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Source (journal)
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Environmental research. - Amsterdam, 1967, currens
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Publication
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Amsterdam
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Elsevier
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2009
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ISSN
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0013-9351
[print]
1096-0953
[online]
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Volume/pages
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109
:7
(2009)
, p. 851-856
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ISI
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000270252600007
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Full text (Publisher's DOI)
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