Comparison of ecotoxicity and persistent organic pollutant bioavailability in real contaminated soil, using selective supercritical fluid extraction (SFE)

Abstract

The amount of bioavailable polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) in contaminated soil was estimated using Supercritical fluid extraction (SFE). The toxicity of contaminated soil was determinated using different organisms: earthworms Eisenia fetida, duckweed Lemna minor, crustacean Heterocypris incongruens, bioluminiscent bacterium Vibrio fischeri and worms Enchytraeus crypticus. There was a different amount of bioavailable fraction in each soil. There was close relationship between ecotoxicity and bioavailability in PAHs contaminated soi