Comparing Trace Element Bioaccumulation and Depuration in Snails and Mayfly Nymphs at a Coal Ash–Contaminated Site

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Abstract

We examined the bioaccumulation of essential (Cu, Fe, Se, and Zn) and nonessential (As and Hg) trace elements in 2 aquatic invertebrate species (adult snails and mayfly nymphs) with different feeding habits at the site of a coal ash spill. Differences in food web pathway, exposure concentrations, and biological processing affected bioaccumulation patterns in these species. Mayflies had higher body burdens, but snails had higher retention of most elements studied. Environ Toxicol Chem 2020;39:2437–2449.

Original languageEnglish
Pages (from-to)2437-2449
Number of pages13
JournalEnvironmental Toxicology and Chemistry
Volume39
Issue number12
DOIs
StatePublished - Dec 2020

Funding

The present study was sponsored by the Tennessee Valley Authority and performed by Oak Ridge National Laboratory, which is managed by UT‐Battelle for the US Department of Energy under contract DE‐AC05‐00OR22725. Special thanks to T. Baker, S. Malone, J. Justice, and A. Stojak for help with sample collections. Thanks to N. Carriker, M. Cagley, and S. Walls for discussions and support and to J. Morris, A. Fortner, T. Jett, and M. Jones for laboratory and field support. The present study was sponsored by the Tennessee Valley Authority and performed by Oak Ridge National Laboratory, which is managed by UT-Battelle for the US Department of Energy under contract DE-AC05-00OR22725. Special thanks to T. Baker, S. Malone, J. Justice, and A. Stojak for help with sample collections. Thanks to N. Carriker, M. Cagley, and S. Walls for discussions and support and to J. Morris, A. Fortner, T. Jett, and M. Jones for laboratory and field support.

Keywords

  • Aquatic invertebrates
  • Bioaccumulation
  • Hexagenia bilineata
  • Metal
  • Pleurocera canaliculatum

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