Document Detail


Contaminant pattern and bioaccumulation of legacy and emerging organhalogen pollutants in the aquatic biota from an e-waste recycling region in South China.
MedLine Citation:
PMID:  20821514     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Legacy pollutants, polychlorinated biphenyls (PCBs), dichlorodiphenyl trichloroethane and its metabolites (DDTs), and some emerging organhalogen pollutants, such as polybrominated diphenyl ethers (PBDEs), hexabromobenzene (HBB), pentabromotoluene (PBT), 2,3,4,5,6-pentabromoethyl benzene (PBEB), 1,2-bis (2,4,6-tribromophenoxy) ethane (BTBPE), and dechlorane plus (DP), were detected in an aquatic food chain (invertebrates and fish) from an e-waste recycling region in South China. Polychlorinated biphenyls, DDTs, PBDEs, and HBB were detected in more than 90% of the samples, with respective concentrations ranging from not detected (ND)-32,000 ng/g lipid weight, ND-850 ng/g lipid weight, 8 to 1,300 ng/g lipid weight, and 0.28 to 240 ng/g lipid weight. Pentabromotoluene, PBEB, BTBPE, and DP were also quantifiable in collected samples with a concentration range of ND-40 ng/g lipid weight. The elevated levels of PCBs and PBDEs in the organisms, compared with those in non-e-waste regions in South China, suggest that these two kinds of pollutants derived mainly from e-waste recycling practices. Hexabromobenzene was significantly correlated with PBDEs, implying that HBB come from the release of e-waste along with PBDEs and/or the pyrolysis of BDE209. Most of the compounds whose trophic magnification factor (TMF) could be calculated were found to biomagnify (TMF > 1). Hexabromobenzene was also found, for the first time, to biomagnify in the present food web, with a TMF of 2.1.
Authors:
Ying Zhang; Xiao-Jun Luo; Jiang-Ping Wu; Juan Liu; Jing Wang; She-Jun Chen; Bi-Xian Mai
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental toxicology and chemistry / SETAC     Volume:  29     ISSN:  0730-7268     ISO Abbreviation:  Environ. Toxicol. Chem.     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-09-07     Completed Date:  2010-10-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8308958     Medline TA:  Environ Toxicol Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  852-9     Citation Subset:  IM    
Copyright Information:
(c) 2010 SETAC.
Affiliation:
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, People's Republic of China.
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MeSH Terms
Descriptor/Qualifier:
Animals
China
Conservation of Natural Resources*
DDT / pharmacokinetics
Electronics*
Flame Retardants / pharmacokinetics
Halogenated Diphenyl Ethers / pharmacokinetics
Hydrocarbons, Halogenated / pharmacokinetics*
Polychlorinated Biphenyls / pharmacokinetics
Water Pollutants, Chemical / pharmacokinetics*
Chemical
Reg. No./Substance:
0/Flame Retardants; 0/Halogenated Diphenyl Ethers; 0/Hydrocarbons, Halogenated; 0/Polychlorinated Biphenyls; 0/Water Pollutants, Chemical; 50-29-3/DDT

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