Evaluation of selected lipid methods for normalizing pollutant bioaccumulation

Authors

  • Robert C. Randall,

    Corresponding author
    1. U.S. Environmental Protection Agency, Pacific Ecosystems Branch, ERL-N, Hatfield Marine Science Center, 2111 S.E. Marine Science Drive, Newport, Oregon 97365-5260
    • U.S. Environmental Protection Agency, Pacific Ecosystems Branch, ERL-N, Hatfield Marine Science Center, 2111 S.E. Marine Science Drive, Newport, Oregon 97365-5260
    Search for more papers by this author
  • Henry Lee II,

    1. U.S. Environmental Protection Agency, Pacific Ecosystems Branch, ERL-N, Hatfield Marine Science Center, 2111 S.E. Marine Science Drive, Newport, Oregon 97365-5260
    Search for more papers by this author
  • Robert J. Ozretich,

    1. U.S. Environmental Protection Agency, Pacific Ecosystems Branch, ERL-N, Hatfield Marine Science Center, 2111 S.E. Marine Science Drive, Newport, Oregon 97365-5260
    Search for more papers by this author
  • James L. Lake,

    1. U.S. Environmental Protection Agency, Narragansett Environmental Research Laboratory, Exposure Branch, Narragansett, Rhode Island 02882
    Search for more papers by this author
  • Richard J. Pruell

    1. U.S. Environmental Protection Agency, Narragansett Environmental Research Laboratory, Exposure Branch, Narragansett, Rhode Island 02882
    Search for more papers by this author

Abstract

Current environmental models use organism lipid concentrations to estimate maximum pollutant bioaccumulation potentials. This collaborative study has shown that significantly different lipid concentrations (3.5X) are found when using common, but different, extraction solvents and methods. Based on these variable lipid values, models that estimate tissue pollutant concentrations normalized to lipid will give significantly different bioaccumulation estimates. To reduce that variability, a standard lipid method needs to be developed or adopted.

Ancillary