Effect of metals on the adsorption and extractability of 14C-phenanthrene in soils

摘要: Abstract The fate of polycyclic aromatic hydrocarbons (PAHs) in contaminated soils may be affected by several environmental factors including the presence co-contaminants. This study was conducted order to assess effect metals on (i) adsorption 14 C-phenanthrene and (ii) its extractability ability form non-extractable residues. first objective accomplished using batch experiments with an uncontaminated agricultural soil spiked Cd, Cu, Pb, Zn. Adsorption phenanthrene significantly higher after addition ( K f =21.48 vs. 8.55) desorption less readily reversible when compared unspiked soil. assessed incubation (4 months, laboratory conditions) microlysimeter (6 natural climatic three metals. All were labelled C-phenanthrene. amount extractable residues had been added soils. Nevertheless, quantity non-significantly different between mechanism leading increased is still unknown. In perspective, it would interesting bioavailability PAHs further experiments.