Journal
MARINE POLLUTION BULLETIN
Volume 118, Issue 1-2, Pages 413-419Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2017.03.009
Keywords
Halogenated organic pollutants; Marine biota; Bioaccumulation; Dietary exposure; South China Sea
Funding
- National Natural Science Foundation of China [41573084, 41401576]
- Chinese Academy of Sciences [XDA13020101]
- Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration [201307]
- Science and Technology Planning Project of Guangdong Province, China [2014B030301064]
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Six marine biota species were collected from the Xuande Atoll, South China Sea to investigate the bioaccumulation of dichlorodiphenyltrichloroethane (DDT), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), decabromodiphenyl ethane (DBDPE) and dechlorane plus (DP). Pike conger (Muraenesox talabonoides) had the highest concentrations of halogenated organic pollutants (HOPs) among the six marine biota species. DDTs were the predominant HOPs, followed by PCBs and PBDEs, with minor contributions of DBDPE and DP. Twenty-one percent of samples had ratios of (DDE + DDD)/Sigma DDTs lower than 0.5, implying the presence of fresh DDT inputs in the environment of the Xuande Atoll. The biomagnification factor values for DDTs, PCBs, PBDEs and DP were higher than 1, suggesting biomagnification of these contaminants in the marine food chains. Consumption of seafood from the Xuande Atoll might not subject local residents in the coastal areas of South China to health risks as far as HOPs are concerned. (C) 2017 Elsevier Ltd. All rights reserved.
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