Document Detail


Biomagnification of anthropogenic and naturally-produced organobrominated compounds in a marine food web from Sydney Harbour, Australia.
MedLine Citation:
PMID:  19665796     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Polybrominated diphenyl ethers (PBDEs) and naturally-produced organobrominated compounds, such as methoxylated PBDEs (MeO-PBDEs), have been scarcely studied in the Southern Hemisphere. Yet, sources of the latter group of compounds were found in Southern regions, specifically in Australia. The environmental distribution and biomagnification potential of organobrominated compounds were therefore investigated in a representative aquatic food chain (invertebrates and fish) from the Sydney Harbour, Australia. Mean PBDE concentrations ranged from 6.4ng/g lipid weight (lw) in squid to 115 ng/g lw in flounder. BDE 47 was the dominant congener, followed by BDE 100. Mean levels of MeO-PBDEs (sum of congeners 2'-MeO-BDE 68 and 6-MeO-BDE 47) were as high as 110 ng/g lw in tailor, with a slight dominance of 2'-MeO-BDE 68. Polybrominated hexahydroxanthene derivates (PBHDs), another class of naturally-produced compounds, were found at variable concentrations and ranged from 4.7 ng/g lw in fanbelly and 146ng/g lw in tailor. The tribrominated PBHD isomer dominated in the samples, except for luderick and squid. The lower levels of PBDEs found in luderick from the harbour compared to those obtained from the upper Parramatta River indicated a terrestrial (anthropogenic) origin of PBDEs, while the higher levels of MeO-PBDEs and PBHDs in the samples from the harbour confirmed the marine (natural) origin of these compounds. The highest trophic magnification factor (TMF) was found for sum PBDEs (3.9), while TMFs for sum MeO-PBDEs and sum PBHDs were 2.9 and 3.4, respectively. This suggests that biomagnification occurs in the studied aquatic food chain for anthropogenic brominated compounds, but also for the naturally-produced organobromines.
Authors:
Sara Losada; Anthony Roach; Laurence Roosens; Francisco Javier Santos; Maria Teresa Galceran; Walter Vetter; Hugo Neels; Adrian Covaci
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-08-08
Journal Detail:
Title:  Environment international     Volume:  35     ISSN:  1873-6750     ISO Abbreviation:  Environ Int     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-09-30     Completed Date:  2009-11-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7807270     Medline TA:  Environ Int     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  1142-9     Citation Subset:  IM    
Affiliation:
Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium.
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MeSH Terms
Descriptor/Qualifier:
Animals
Brachyura / metabolism
Decapodiformes / metabolism
Environmental Monitoring
Fishes / metabolism*
Flame Retardants / analysis,  metabolism
Flounder / metabolism
Food Chain
Halogenated Diphenyl Ethers / analysis,  metabolism
Hydrocarbons, Brominated / analysis,  metabolism*
Invertebrates / metabolism*
Kinetics
New South Wales
Pacific Ocean
Rivers / chemistry
Seawater / chemistry*
Water Pollutants, Chemical / analysis,  metabolism*
Chemical
Reg. No./Substance:
0/Flame Retardants; 0/Halogenated Diphenyl Ethers; 0/Hydrocarbons, Brominated; 0/Water Pollutants, Chemical; 25637-99-4/hexabromocyclododecane

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


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