Amélie Cavelan, Pierre Faure, Catherine Lorgeoux, Stéfan Colombano, Jacques Deparis, Dorian Davarzani, Noële Enjelvin, Constantin Oltean, Anne-Julie Tinet, Fabien Domptail, Fabrice Golfier
Light-Non-Aqueous phase liquids (LNAPLs) are important soil contamination sources, and groundwater fluctuations may significantly affect their migration and release. However, the risk assessment remains complex due to the continuous three-phase fluid redistribution caused by water table level variations. Hence, monitoring methods must be improved to integrate better the LNAPL multi-compound and multi-phase aspects tied to the groundwater level dynamics. For this purpose, a lysimetric contaminated soil column (2 m3 ) combining in-situ monitoring (electrical permittivity, soil moisture, temperature, pH, Eh), direct water and gas sampling and analyses (GC/MS-TQD, μGC) in monitoring well, gas collection chambers, and suction probes) were developed...
February 9, 2024: Journal of Contaminant Hydrology