Document Detail


Spatial variation in hepatic levels and patterns of PCBs and PCDD/Fs among young-of-the-year and adult Atlantic tomcod (Microgadus tomcod) in the Hudson River estuary.
MedLine Citation:
PMID:  14998007     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Full congener-specific polychorinated biphenyl (PCB) and partial-congener-specific polychorinated dibenzo-p-dioxin/furan (PCDD/F) analyses were performed on livers from young-of-the-year (YOY) and adult Atlantic tomcod from the Hudson River estuary including multiple sites along the main-stem Hudson River and Newark Bay/Hackensack River, NJ, and from a reference river, the Miramichi River, NB. Highest hepatic burdens of PCBs were found in fish collected in the main-stem Hudson River between river miles (RM) 37 and 50 and in Newark Bay/Hackensack River. By far, the highest concentrations of PCDD/Fs were seen in fish from Newark Bay/Hackensack River. The di- to tetrachlorinated biphenyls dominated the PCB composition in YOY tomcod, whereas the penta- to nonachlorinated biphenyls predominated in adults with particular prevalence of the 2,4,5-substituted diortho congeners. Overall, using a direct mixing model an aroclor composition of approximate 1:1:1, A1242:A1254:A1260, was calculated from the hepatic PCB profiles in YOY tomcod. A linear increase in A1242 characteristics with river mile was seen in YOY collected between RM 0 and RM 80, which was likely due to the well-characterized A1242 source from the former capacitor manufacturing plants located upriver. However, tomcod caught upstream of RM 80 exhibited a PCB pattern with decreasing A1242 characteristics, and it was hypothesized that this was due to the increased depuration or decreased uptake of low chlorinated (log K(OW) < 6) congeners upon entry of the fish into freshwater from brackish water. The most abundant tetra-octa PCDD/F chlorohomologue in tomcod collected from the main stem of the Hudson River was TCDF, whereas 2,3,7,8-TCDD was the major congener detected in tomcod from Newark Bay/Hackensack River, which showed elevated total PCDD/F levels compared to tomcod from the main-stem Hudson River.
Authors:
Marc P Fernandez; Michael G Ikonomou; Simon C Courtenay; Isaac I Wirgin
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Environmental science & technology     Volume:  38     ISSN:  0013-936X     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2004 Feb 
Date Detail:
Created Date:  2004-03-04     Completed Date:  2004-04-21     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  976-83     Citation Subset:  IM    
Affiliation:
Fisheries and Oceans Canada, Institute of Ocean Sciences, 9860 West Saanich Road, Sidney, British Columbia, V8L 4B2, Canada.
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MeSH Terms
Descriptor/Qualifier:
Animals
Benzofurans / analysis,  pharmacokinetics*
Environmental Monitoring
Environmental Pollutants / analysis,  pharmacokinetics*
Female
Fishes*
Liver / chemistry
Male
New York
Polychlorinated Biphenyls / analysis,  pharmacokinetics*
Rivers
Sodium Chloride
Soil Pollutants / analysis,  pharmacokinetics*
Tetrachlorodibenzodioxin / analogs & derivatives*,  analysis,  pharmacokinetics*
Tissue Distribution
Water / chemistry
Water Pollutants, Chemical / analysis,  pharmacokinetics
Grant Support
ID/Acronym/Agency:
ES00260/ES/NIEHS NIH HHS; ES10344/ES/NIEHS NIH HHS
Chemical
Reg. No./Substance:
0/Benzofurans; 0/Environmental Pollutants; 0/Polychlorinated Biphenyls; 0/Soil Pollutants; 0/Water Pollutants, Chemical; 0/chlorinated dibenzofurans; 0/polychlorodibenzo-4-dioxin; 1746-01-6/Tetrachlorodibenzodioxin; 7647-14-5/Sodium Chloride; 7732-18-5/Water

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


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