Understanding the transport and transformation of pollutants from toxic and diffuse sources represents a major challenge in the 21st century, and have become of utmost importance for the preservation of soil and water resources. Surface and sub-surface pollutant fluxes may be intercepted and transformed in transitional reactive zones of the landscape, such as wetlands or ground-surface water interfaces, before they reach other ecosystems. Reactive zones are ‘biogeochemical hotspots’, bearing dynamic interfaces between water, soil/sediment and microorganisms, and develop dynamic combinations of electron acceptors and donors reflecting microbial diversity and biogeochemical activity.
In this context, the fundamental questions that bother me are : what is the hydrological and biogeochemical functioning of these ‘hotspots’ with respects to pollutant transport and microbial transformation ? What are the taxonomic and functional diversity, physiology, and metabolism of microorganisms involved in pollutant transformation ? How do microorganisms respond to the pollution regime and hydro-biogeochemical fluctuations, and influence key ecosystem services (e.g. water quality improvement, flood abatement, biodiversity) ? My research principally revolves around the scientific underpinning of microbial processes in polluted agricultural systems, aquifers and wetland systems.
| Since 2021 | Director of the Research Initiative in Sustainability and the Environment (RISE/FERED) (https://fered.unistra.fr/) |
| Since 2019 | Research Professor CNRS (DR) |
| 2013 | Habilitation (HDR): Université de Strasbourg, France |
| Since 2009 | Research scientist: National Centre for Scientific Research – CNRS, France (LHyGeS) |
| 2008-2009 | Post-doc: Laboratory of Hydrology and Geochemistry of Strasbourg (LHyGeS), UdS /ENGEES, CNRS ; Strasbourg, France |
| 2005-2008 | Ph.D. thesis in Isotope Biogeochemistry: Department of Isotope Biogeochemistry of the Hemholtz Centre for Environmental Research – UFZ, Leipzig, Germany (http://www.ufz.de). PhD Fellowships within Marie Curie ITN programme. |
| 2003-2005 | Master of advanced studies in Hydrology and Water Resources Management : Swiss Federal Institutes of Technology (EPFL), (ETHZ) and the Centre of Hydrogeology of the University of Neuchâtel (CHYN). Master thesis at IIT Chenai (India). |
| 1998-2003 | Master in Biology (spec. Microbial ecology): University of Neuchâtel (Switzerland) |
(full list is provided below as pdf)
A) Peer-reviewed articles (ISI) (>95; orcid.org/0000-0002-7054-4666), here are the recent (last 4 years) and main review articles :
2024
2023
Boyer A.L. et al. (2023). The social connectivity of subsurface flows: Towards a better integration of the vertical dimension in socio‐hydrosystem studies. Wiley Interdisciplinary Reviews: Water, e1703
Junginger T., Payraudeau S., Imfeld G. (2023). Emissions of the Urban Biocide Terbutryn from Facades: The Contribution of Transformation Products. Environmental Science & Technology. https://doi.org/10.1021/acs.est.2c08192
Prieto-Espinoza M., Di Chiara R., Muller E.E.L., Vuilleumier S., Imfeld G., Weill S. (2023). Combining multi-phase flow and pathway-specific reactive transport modeling to investigate the impact of water table fluctuations on dichloromethane biodegradation. Advances in Water Resources. 104519. https://doi.org/10.1016/j.advwatres.2023.104519
Imfeld G., Payraudeau S., Sauvage S., Macary F., Chaumont C., et al. (2023). Quel est le rôle des retenues collinaires pour limiter les flux de pesticides dans le paysage agricole ?. Sciences Eaux & Territoires, 43, pp.49-56. ⟨10.20870/Revue-SET.2023.43.7792⟩
Linke, F., Edun, O., Junginger, T., Payraudeau S., Preusser F., Imfeld G., Lange J. (2023) Biocides in Soils of Urban Stormwater Infiltration Systems—Indications of Inputs from Point and Non-point Sources. Water Air Soil Pollut 234, 586. doi.org/10.1007/s11270-023-06613-0
Gilevska T., Payraudeau S., Imfeld G. (2023). Evaluating pesticide degradation in artificial wetlands with compound-specific isotope analysis: A case study with the fungicide dimethomorph. Science of the Total Environment. 165767. https://doi.org/10.1016/j.scitotenv.2023.165767
Imfeld G., Guyot B., Wiegert C., Payraudeau S. (2023). Soil management drives copper and zinc export in runoff from vineyard plots. Water Air Soil Pollut. 234:357. https://doi.org/10.1007/s11270-023-06352-2
Saaidi P.-L., Grünberger O., Samouelian A, Le Roux Y., Richard A., Devault D.A., Feidt C., Benoit P., Evrard O., Imfeld G., Mouvet C., Voltz M. (2023). Is a dissipation half-life of 5 years for chlordecone in soils of the French West Indies relevant? Environmental Pollution, 324 121283. https://doi.org/10.1016/j.envpol.2023.121283
Masbou J., Payraudeau S., Guyot B., Imfeld G. (2023). Dimethomorph degradation in vineyards examined by isomeric and isotopic fractionation. Chemosphere 313, 137341. https://doi.org/10.1016/j.chemosphere.2022.137341
Bahi A., Sauvage S., Payraudeau S., Imfeld G., Sánchez-Pérez J-M., Chaumet B., Tournebize J. (2023). Process formulations and controlling factors of pesticide dissipation in artificial ponds: A critical review. Ecological Engineering 186, 106820. https://doi.org/10.1016/j.ecoleng.2022.106820
2022
Chaignaud P., Gruffaz C., Borreca A., Fouteau S., Kuhn L., Masbou J., Rouy Z., Hammann P., Imfeld G., Roche D., Vuilleumier S. (2022). A Methylotrophic Bacterium Growing with the Antidiabetic Drug Metformin as Its Sole Carbon, Nitrogen and Energy Source. Microorganisms 10 (11), 2302. https://doi.org/10.3390/microorganisms10112302
Gilevska T., Wiegert C., Droz B., Junginger T., Prieto-Espinoza M., Borreca A., Imfeld G. (2022). Simple extraction methods for pesticide compound-specific isotope analysis from environmental samples. MethodsX 9, 101880. https://doi.org/10.1016/j.mex.2022.101880
Höhener P., Guers D., Malleret L., Boukaroum O., Martin-Laurent F., Masbou J., Payraudeau S., Imfeld G. (2022). Multi-elemental compound-specific isotope analysis of pesticides for source identification and monitoring of degradation in soil: a review. Environmental Chemistry Letter. doi.org/10.1007/s10311-022-01489-8
Gilevska T., Masbou J., Baumelin B., Chaumet B., Chaumont C., Payraudeau S., Tounebize J., Probst A., Probst J.-L., Imfeld G. (2022). Do pesticides degrade in surface water receiving runoff from agricultural catchments? Combining passive samplers (POCIS) and compound-specific isotope analysis. 156735
Junginger T., Payraudeau S., Imfeld G. (2022) Transformation and stable isotope fractionation of the urban biocide terbutryn during biodegradation, photodegradation and abiotic hydrolysis. Chemosphere, 135329.
2021
2020
Reviews and books
