Bioavailability of desorption-resistant phenanthrene to the oligochaete Ilyodrilus templetoni

Xiaoxia Lu, Danny D. Reible, John W. Fleeger, Yunzhou Chai

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

We investigated bioavailability, as measured by the biota-sediment accumulation factor (BSAF), of reversibly sorbed and desorption-resistant phenanthrene to the deposit-feeding freshwater tubificid oligochaete Hyodrilus templetoni. Desorption-resistant, phenanthrene-contaminated sediments were prepared by a sequential batch desorption method by washing with an isopropanol solution. The BSAFs averaged 1.20 ± 0.32 and 0.59 ± 0.13 for reversibly sorbed phenanthrene and desorption-resistant phenanthrene, respectively, indicating a significantly reduced bioavailability of desorption-resistant phenanthrene. A generalized model assuming a linear relationship between pore-water concentration and normalized bioaccumulation described 91% of the variance for both measured and selected literature data of the BSAF. The reduced bioavailibility of desorption-resistant phenanthrene was thus well described by physical and chemical measures of partitioning between pore water and sediment.

Original languageEnglish
Pages (from-to)153-160
Number of pages8
JournalEnvironmental Toxicology and Chemistry
Volume22
Issue number1
DOIs
StatePublished - Jan 1 2003

Keywords

  • Bioavailability
  • Biota-sediment accumulation factor
  • Desorption resistance
  • Partition coefficients

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