Vadose zone characterisation at industrial contaminated sites
(2015) Advocate bulletin — n° 7, p. 1-14 (2015)
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- An important challenge faced by environmental practitioners is the estimation of the impact of contamination that is transported from the source of contamination to soil and groundwater at industrial sites. Specifically, quantification of contaminant flux in the vadose zone is challenging due partly to the heterogeneity of the complex porous medium and the preferential flow. Contaminant flux estimations are essential to better establish risk assessment of soil and groundwater as well as to support the selection of remedial measures. Several methods have been developed for contaminant flux estimations in the vadose zone. These methodologies are either based on modelling, on experimental approaches, or on the combination of both, and have been developed principally in the context of agricultural purposes. However, the applicability of such techniques is questioned when it comes to their application to industrial sites, due to differences in depth of investigation, soil origin, contamination and sources. An overview of contaminant flux measurement techniques, together with a potential alternative for improving characterisation techniques and contaminant flux measurement in the vadose zone is presented in this bulletin. The vadose zone experimental setup consists of the combination of the Vadose Zone Monitoring System (VMS) and cross-hole geophysics.
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Fernandez de Vera, N., Dahan, O., Dassargues, A., Vanclooster, M., Nguyen, F., & Brouyère, S. (2015). Vadose zone characterisation at industrial contaminated sites. Advocate bulletin, 7, 1-14. https://hdl.handle.net/2078.5/193406 (Original work published 2015)