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Hydroxylated and methylsulfonyl polychlorinated biphenyl metabolites in albatrosses from Midway Atoll, North Pacific Ocean

journal contribution
posted on 2023-05-18, 16:30 authored by Klasson-Wehler, E, Bergman, A, Athanasiadou, M, Ludwig, JP, Heidi AumanHeidi Auman, Kannan, K, Van Den Berg, M, Murk, AJ, Feyk, LA, Giesy, JP
Concentrations of hydroxylated metabolites of polychlorinated biphenyls (PCBs) (OH-PCBs) and methylsulfonyl metabolites of PCBs (MeSO2-PCBs) were determined in plasma and liver of albatrosses collected from the Midway Atoll in the central North Pacific Ocean. The mean total concentrations of OH-PCBs in plasma of Laysan albatrosses (Diomedea immutabilis) and black-footed albatrosses (Diomedea nigripes) were 11.5 and 27.1 ng/g wet weight, respectively. Total concentrations of OH-PCBs were only one- to fivefold less than those of total PCBs. 4-hydroxy-2,2′,3,4′,5,5′,6-heptachlorinated biphenyl and 4-hydroxy-2,2′,3,4′,5,5′-hexachlorinated biphenyl were the predominant polychlorinated biphenylols, constituting 70 to 90% of the total OH-PCBs. Concentrations of MeSO2-PCBs in liver were between 10.6 and 77 ng/g, lipid weight, approximately 250 times less than those of total PCBs. The MeSO2-PCBs congeners retained in the liver were dominated by those having the methylsulfonyl group in the 3-position.

History

Publication title

Environmental Toxicology and Chemistry

Volume

17

Issue

8

Pagination

1620-1625

ISSN

0730-7268

Department/School

Institute for Marine and Antarctic Studies

Publisher

SETAC

Place of publication

1010 North 12Th Ave, Pensacola, USA, Fl, 32501-3367

Rights statement

Copyright 1998 SETAC

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the biological sciences