Document Detail


Levels of polychlorinated dibenzo-p-dioxins, dibenzofurans, and biphenyls in southern Mississippi catfish and estimation of potential health risks.
MedLine Citation:
PMID:  19108868     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Fish consumption has been classified as one of the primary pathways of exposure to polychlorinated dibenzo-p-dioxins, dibenzofurans (PCDD/Fs) and biphenyls (PCBs). In this study, we evaluated tissue levels of the 17 laterally substituted PCDD/Fs, 12 dioxin-like PCBs, and 97 non-dioxin-like PCBs in a number of wild-caught and farm-raised catfish collected throughout southern Mississippi. Total lipid-adjusted TEQ and non-dioxin-like PCB concentrations in wild-caught catfish fillets were significantly higher than concentrations in farm-raised fillet samples. The percent contribution of PCDDs, PCDFs, and dioxin-like PCBs to mean total TEQ varied between wild-caught and farm-raised samples as well as by collection site for wild-caught catfish. The non-dioxin-like PCBs that contributed the most to total PCB concentrations also differed between wild-caught and farm-raised samples. Regardless of whether samples were farm-raised or wild-caught, estimated cancer risks associated with consumption of these catfish were less than 27.0E-06. Overall, results of this study indicate that levels of dioxin-like compounds and PCBs in Mississippi catfish are similar to those measured in more recent studies in the US and that levels of these compounds appear to be decreasing in this food source.
Authors:
Laura L F Scott; Daniele F Staskal; E Spencer Williams; William J Luksemburg; Jon D Urban; Ly M Nguyen; Laurie C Haws; Linda S Birnbaum; Dennis J Paustenbach; Mark A Harris
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-12-23
Journal Detail:
Title:  Chemosphere     Volume:  74     ISSN:  1879-1298     ISO Abbreviation:  Chemosphere     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-02-03     Completed Date:  2009-03-18     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0320657     Medline TA:  Chemosphere     Country:  England    
Other Details:
Languages:  eng     Pagination:  1002-10     Citation Subset:  IM    
Affiliation:
ChemRisk, 10375 Richmond Avenue, Suite 350, Houston, TX 77042, USA. lscott@chemrisk.com
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MeSH Terms
Descriptor/Qualifier:
Animals
Benzofurans / analysis*
Catfishes*
Fish Products / analysis
Food Contamination
Mississippi
Polychlorinated Biphenyls / analysis*
Risk
Tetrachlorodibenzodioxin / analogs & derivatives*,  analysis
Chemical
Reg. No./Substance:
0/Benzofurans; 0/Polychlorinated Biphenyls; 0/chlorinated dibenzofurans; 0/polychlorodibenzo-4-dioxin; 1746-01-6/Tetrachlorodibenzodioxin

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


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