Document Detail


Bioaccumulation behavior of polybrominated diphenyl ethers (PBDEs) in the freshwater food chain of Baiyangdian lake, north China.
MedLine Citation:
PMID:  20170961     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Polybrominated diphenyl ethers (PBDEs) are of great environmental concern due to bioaccumulation in different food chains. Trophodynamics of PBDEs in freshwater food chain is an important criterion for assessing their ecological risk. In the study, PBDEs were analyzed in sixteen aquatic species collected from Baiyangdian Lake, North China. The concentrations of nine PBDE congeners (BDE-28, -47, -66, -99, -100, -85, -153, -154, and -183) in aquatic organisms ranged from 3.4 to 160.2ng/g lipid weight. BDE-47 was the predominant PBDE congener in most samples except for river snails and swan mussels. BDE-209 was detected in 50% of biota samples, which indicated the bioavailability of BDE209. Correlation between lipid-normalized concentrations of PBDEs and trophic levels determined by stable isotope nitrogen technologies confirmed that PBDEs were biomagnified in the freshwater food chain. The trophic magnification factors (TMFs) ranged from 1.3 to 2.1 for PBDE congeners, greater than one, indicating the biomagnification potential for the PBDE congeners in the freshwater food chain. The relationship between TMFs and Log K(ow) (octanol-water partition coefficient) indicated that the phenomenon of trophic magnification for lowly brominated congeners was obvious in the freshwater food chain.
Authors:
Guo-cheng Hu; Jia-yin Dai; Zhen-cheng Xu; Xiao-jun Luo; Hong Cao; Jian-she Wang; Bi-xian Mai; Mu-qi Xu
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-02-19
Journal Detail:
Title:  Environment international     Volume:  36     ISSN:  1873-6750     ISO Abbreviation:  Environ Int     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-04-05     Completed Date:  2010-06-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7807270     Medline TA:  Environ Int     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  309-15     Citation Subset:  IM    
Affiliation:
Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China.
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MeSH Terms
Descriptor/Qualifier:
Animals
Animals, Wild
China
Environmental Exposure*
Food Chain*
Fresh Water
Halogenated Diphenyl Ethers / metabolism*
Marine Biology
Tissue Distribution
Water Pollutants, Chemical / metabolism*
Chemical
Reg. No./Substance:
0/Halogenated Diphenyl Ethers; 0/Water Pollutants, Chemical

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