Ponsin, Violaine

My research interests lie in the fate of organic contaminants in groundwater. I am currently involved in two research projects, one focusing on pesticides and the second one on petroleum hydrocarbons. Both projects apply Compound-Specific Isotope Analysis to assess processes responsible for the degradation of these organic contaminants in groundwater.

Education and Positions held

2014-Present : Postdoc at the Centre for Hydrogeology and Geothermics (CHYN), University of Neuchâtel, Switzerland, in group Hydrochemistry and Contaminants

2011-2014 : PhD student at the Laboratory for Environmental Chemistry (LCE), Aix-Marseille University, France, in group “Développements Métrologiques et Chimie des Milieux”

2007-2011 : MSc of Environmental Sciences, AgroParisTech, France


Ponsin V, Maier J, Guélorget Y, Hunkeler D, Bouchard D, Villavicencio H and Höhener P, Documentation of time-scales for onset of natural attenuation in an aquifer treated by a crude-oil recovery system. Science of the Total Environment, 512-513:62-73, 2015.

Ponsin V, Chablais A, Dumont J, Radakovitch O and Höhener P, 222Rn as natural tracer for LNAPL recovery in a crude-oil contaminated aquifer, Groundwater Monitoring & Remediation, 2015.

Ponsin V, Coulomb B, Guélorget Y, Maier J and Höhener P, In situ biostimulation of petroleum hydrocarbon degradation by nitrate and phosphate injection using a dipole well configuration, Journal of Contaminant Hydrology, 171:22-31, 2014.

Ponsin V, Mouloubou OR, Prudent P and Höhener P, Does phosphate enhance the natural attenuation of crude oil in groundwater under defined redox conditions?, Journal of Contaminant Hydrology, 169:4-18, 2014.

Höhener P and Ponsin V, In situ vadose zone bioremediation, Current Opinion in Biotechnology, 27:1-7, 2014.


Office: E117
Tél: +41 (0) 32 718 25 81




Centre d'hydrogéologie et de géothermie (CHYN)
Emile-Argand 11
CH-2000 Neuchâtel