Dr. Roig is professor in risk sciences. He is head of the CHROME laboratory (EA7352) dealing with the characterisation and management of chronic and emerging risks. He was involved in numerous project focussed on the impact of contaminated environment on human population. He was the Scientific Coordinator of the EU funded PHARMAS Project, which assesses the risks to wild animals and humans posed by environmental exposure to pharmaceuticals. He has published numerous articles on risk related to environmental waters. Currently member of the Occitanie regionnal expert panel for small and high water cycle. Previously member to the scientific board of the research program for environment and health of ANSES as well as member of European external Expert panels for endocrine disrupting chemicals . Dr. Weiss has contributed actively to the consolidation and dissemination of environmental psychology in France. Together with her colleagues from the Laboratory of Environmental Psychology at the University Paris-Descartes, she promoted the creation of the Association of Francophone Environmental Psychology (ARPEnv). She has published articles on various aspects of environmental psychology, from social psychological and from social representation approaches, including welfare; the relationship of the individual with natural resources and natural hazards; risk and risk management, both in natural and built environments, syndrome of the sick building, and environmental psychology in France. Dr. Thireau has published over a dozen articles in Institutional Economics, Industrial Organization, Economic Geography.