Document Detail


Bioconcentration and biomagnification of polybrominated diphenyl ethers (PBDEs) through lower-trophic-level coastal marine food web.
MedLine Citation:
PMID:  19376538     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Bivalves, crabs, fishes, seawater, and sediment collected from the inner part of Tokyo Bay, Japan, were measured for 20 polybrominated diphenyl ether (PBDE) and 5 polychlorinated biphenyl (PCB) congeners. To determine the trophic levels of the organisms, carbon and nitrogen stable isotope ratios (delta(13)C and delta(15)N) were also measured. Bioconcentration factors of PBDE and PCB congeners increased as the octanol-water partition coefficient (K(ow)) rose to log K(ow)=7, above which they decreased again. Biomagnification of PCBs and several PBDE congeners (BDE47, 99, 100, 153 and 154) up the trophic ladder was confirmed by a positive correlation between their concentrations and delta(15)N. Other PBDE congeners showed a negative or no correlation, suggesting their biotransformation through metabolism. The more hydrophobic congeners of both PBDEs (Br=2-6) and PCBs (Cl=6-9) were biomagnified more. It thus appears that PBDEs are less biomagnified than PCBs.
Authors:
Kaoruko Mizukawa; Hideshige Takada; Ichiro Takeuchi; Tokutaka Ikemoto; Koji Omori; Kotaro Tsuchiya
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-04-18
Journal Detail:
Title:  Marine pollution bulletin     Volume:  58     ISSN:  1879-3363     ISO Abbreviation:  Mar. Pollut. Bull.     Publication Date:  2009 Aug 
Date Detail:
Created Date:  2009-07-22     Completed Date:  2009-10-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0260231     Medline TA:  Mar Pollut Bull     Country:  England    
Other Details:
Languages:  eng     Pagination:  1217-24     Citation Subset:  IM    
Affiliation:
Laboratory of Organic Geochemistry, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan.
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MeSH Terms
Descriptor/Qualifier:
Animals
Food Chain*
Halogenated Diphenyl Ethers / analysis,  metabolism*
Japan
Marine Biology
Pacific Ocean
Water Pollutants, Chemical / analysis,  metabolism*
Chemical
Reg. No./Substance:
0/Halogenated Diphenyl Ethers; 0/Water Pollutants, Chemical

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


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