Georges Lognay is Emeritus Full-Professor at the Gembloux Agro-Bio Tech faculty from University of Liège (Belgium). Analytical Chemistry applied to agro-food sciences ,chemical ecology and environment are his main fields of interest. He is invited Professor in the depts. of Functional and evolutive entomology (GxABT) and Sensing of Atmospheres and monitoring from the University of Liege (B). He is member of the ANSES (F) and of the Superior Health Council (B) See his expertise on RG.