Multistep thermodesorption coupled with molecular analyses as a quick, easy and environmentally friendly way to measure PAH availability in contaminated soils

Whether it is for risk assessment or remediation purpose, contaminant availability in polluted soils a key parameter to determine. Two methods were recently standardized the estimation of environmental available fraction non-polar organics but, some cases, their application on real historically contaminated does not provide satisfactory results. The present study aimed at proposing an alternative method PAH soils, based analytical thermal desorption and molecular analyses with hypothesis that binding strength between solid matrix linked temperature. This was validated by comparing thermodesorption distribution different respective extractable organic matter. Then, profiles each studied efficiency biological chemical treatments through principal component analysis allowed obtaining temperature corresponding fractions towards both treatments. proven effectively estimate (microbial incubation) (KMnO4 oxidation) multiple advantages such as being fast, easy execute solvent free.