Bioavailability of desorption-resistant phenanthrene to the oligochaete Ilyodrilus templetoni
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 Ilyodrilus 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.
Publication Source (Journal or Book title)
Environmental toxicology and chemistry
Lu, X., Reible, D. D., Fleeger, J. W., & Chai, Y. (2003). Bioavailability of desorption-resistant phenanthrene to the oligochaete Ilyodrilus templetoni. Environmental toxicology and chemistry, 22 (1), 153-60. Retrieved from https://digitalcommons.lsu.edu/biosci_pubs/4242