BIOAVALABILITY OF LAB-CONTAMINATED AND NATIVE POLYCYCLIC AROMATIC HYDROCARBONS TO THE AMPHIPOD COROPHIUM VOLUTATOR RELATES TO CHEMICAL DESORPTION

摘要

In the present study, the relationship between bioavailaility of polycyclic aromatic hydrocarbons(PAHs)to benthic amphipods and the PAH desorption kinetics was examined. To that end, field-contaminated sediment was treated in three different ways. One subsample has no addition of PAHs and contained native PAHs only. To a second subsample, six PAHs(phenanthrene, fluoranthene, anthracene, pyrene, benzo[b]fluoranthene, and benzo[k]fluoranthene)were added in the laboratory. Two of the PAHs were added at higher concentrations to a third subsample, serving as a control for concentration-dependent uptake.