Document Detail

Isomer-specific bioaccumulation and trophic transfer of Dechlorane Plus in the freshwater food web from a highly contaminated site, South China.
MedLine Citation:
PMID:  19994895     Owner:  NLM     Status:  MEDLINE    
Dechlorane Plus (DP), a highly chlorinated flame retardant, has been detected in water, sediment, and aquatic organisms in a reservoir in the vicinity of electronic waste recycling workshops in South China. The biomagnification potential of DP in the food web was assessed and compared with that of polybrominated diphenyl ethers (PBDEs) and polychlorinated biphenyls (PCBs). DP was detected in all of the aquatic species, with concentrations of 19.1-9630 ng/g lipid wt. A depletion of anti-DP was observed in organisms compared with abiotic samples and the fraction of anti-DP was found to be further decreased upon moving up the trophic levels. This result suggested a stereospecific metabolism of anti-DP and/or isomer-selective uptake of syn-DP was occurring in organisms. Both syn- and anti-DP were significantly biomagnified in the present food web, with trophic magnification factors (TMFs) of 11.3 and 6.6, respectively. The trophic magnification potentials of the DP isomers were generally comparable to or lower than those of the highly recalcitrant PCB congeners in the same food web, but were 2-3 times greater than those of PBDE congeners.
Jiang-Ping Wu; Ying Zhang; Xiao-Jun Luo; Jing Wang; She-Jun Chen; Yun-Tao Guan; Bi-Xian Mai
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental science & technology     Volume:  44     ISSN:  0013-936X     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2010 Jan 
Date Detail:
Created Date:  2010-01-13     Completed Date:  2010-03-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  606-11     Citation Subset:  IM    
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
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MeSH Terms
Fishes / metabolism
Flame Retardants / analysis*
Food Chain*
Fresh Water / chemistry*
Geologic Sediments
Hydrocarbons, Chlorinated / chemistry*
Polycyclic Compounds / chemistry*
Snails / chemistry,  metabolism
Snakes / metabolism
Water Pollutants, Chemical / chemistry*
Reg. No./Substance:
0/Flame Retardants; 0/Hydrocarbons, Chlorinated; 0/Polycyclic Compounds; 0/Water Pollutants, Chemical; 0/dechlorane plus

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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