Skip Navigation
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Your Environment. Your Health.

Publication Detail

Title: 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.

Authors: Fernandez, Marc P; Ikonomou, Michael G; Courtenay, Simon C; Wirgin, Isaac I

Published In Environ Sci Technol, (2004 Feb 15)

Abstract: 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.

PubMed ID: 14998007 Exiting the NIEHS site

MeSH Terms: Animals; Benzofurans/analysis; Benzofurans/pharmacokinetics*; Dibenzofurans, Polychlorinated; Environmental Monitoring; Environmental Pollutants/analysis; Environmental Pollutants/pharmacokinetics*; Female; Fishes*; Liver/chemistry; Male; New York; Polychlorinated Biphenyls/analysis; Polychlorinated Biphenyls/pharmacokinetics*; Polychlorinated Dibenzodioxins/analogs & derivatives*; Polychlorinated Dibenzodioxins/analysis; Polychlorinated Dibenzodioxins/pharmacokinetics*; Rivers; Sodium Chloride; Soil Pollutants/analysis; Soil Pollutants/pharmacokinetics*; Tissue Distribution; Water Pollutants, Chemical/analysis; Water Pollutants, Chemical/pharmacokinetics; Water/chemistry

Back
to Top