TY - JOUR
T1 - Bioavailability of desorption-resistant phenanthrene to the oligochaete Ilyodrilus templetoni
AU - Lu, Xiaoxia
AU - Reible, Danny D.
AU - Fleeger, John W.
AU - Chai, Yunzhou
PY - 2003/1/1
Y1 - 2003/1/1
N2 - 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.
AB - 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.
KW - Bioavailability
KW - Biota-sediment accumulation factor
KW - Desorption resistance
KW - Partition coefficients
UR - http://www.scopus.com/inward/record.url?scp=0037215168&partnerID=8YFLogxK
U2 - 10.1002/etc.5620220120
DO - 10.1002/etc.5620220120
M3 - Article
C2 - 12503759
AN - SCOPUS:0037215168
SN - 0730-7268
VL - 22
SP - 153
EP - 160
JO - Environmental Toxicology and Chemistry
JF - Environmental Toxicology and Chemistry
IS - 1
ER -