Solid/Liquid partitioning coefficient of hydrophobic persistent organic pollutants (POP) for different sediments with passive sampler

Benoit Charrasse (1) , Pierre Hennebert (1) , Pierre Doumenq (2) , Céline Tixier (3)

1 INERIS - Institut National de l'Environnement Industriel et des Risques
2 LCE - Laboratoire Chimie de l'environnement
3 IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer

The dredged contaminated sediment are considered as waste and landfilled. Use as public work material (filling, noise protection slope, landscape mound) is considered. The environmental impact must be assessed, and in particular the emission of persistent organic pollutants (POP) in percolating water. The assessment of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) is problematic since their concentration in water in equilibrium with the sediment is below the limit of quantification of routine water analysis. This work describes a laboratory method for evaluation of hydrophobic POPs concentration in water by passive sampling, and a non-linear partition coefficient model between the sediment solid phase and the aqueous phase.

Domaines: Sciences de l'environnement

Benoit Charrasse, Pierre Hennebert, Pierre Doumenq, Céline Tixier. Solid/Liquid partitioning coefficient of hydrophobic persistent organic pollutants (POP) for different sediments with passive sampler. 7. International Conference on Remediation of Contaminated Sediments, Feb 2013, Dallas, United States. pp.NC. ⟨ineris-00973691⟩