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

Authors

  • Eva Klasson-Wehler,

    1. Department of Environmental Chemistry, Wallenberg Laboratory, Stockholm University, S-106 91 Stockholm, Sweden
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  • Åke Bergman,

    1. Department of Environmental Chemistry, Wallenberg Laboratory, Stockholm University, S-106 91 Stockholm, Sweden
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  • Maria Athanasiadou,

    1. Department of Environmental Chemistry, Wallenberg Laboratory, Stockholm University, S-106 91 Stockholm, Sweden
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  • James P. Ludwig,

    1. SERE Group, 138 Road 2W, Kingsville, Ontario N9Y 2Z6, Canada
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  • Heidi J. Auman,

    1. National Food Safety and Toxicology Center, Department of Zoology, Institute of Environmental Toxicology, Michigan State University, East Lansing, Michigan 48824-1115, USA
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  • Kurunthachalam Kannan,

    1. National Food Safety and Toxicology Center, Department of Zoology, Institute of Environmental Toxicology, Michigan State University, East Lansing, Michigan 48824-1115, USA
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  • Martin Van Den Berg,

    1. Research Institute of Toxicology, Utrecht University, P.O. Box 80176, NL-3508 TD Utrecht, The Netherlands
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  • Albertinka J. Murk,

    1. Department of Toxicology, Wageningen Agricultural University, P.O. Box 8000, Tuinlaan 5, 6700 EA Wageningen, The Netherlands
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  • Lori A. Feyk,

    1. National Food Safety and Toxicology Center, Department of Zoology, Institute of Environmental Toxicology, Michigan State University, East Lansing, Michigan 48824-1115, USA
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  • John P. Giesy

    Corresponding author
    1. National Food Safety and Toxicology Center, Department of Zoology, Institute of Environmental Toxicology, Michigan State University, East Lansing, Michigan 48824-1115, USA
    • National Food Safety and Toxicology Center, Department of Zoology, Institute of Environmental Toxicology, Michigan State University, East Lansing, Michigan 48824-1115, USA
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Abstract

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.

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