Mehdi Sameni received his PhD in Environmental Sciences from the National University of Malaysia in 2009. His thesis focuses on the persistence of pesticides in different types of soils by a combination of laboratory and field-based investigations. During his postdoctoral, his research focused on validation studies for analyses of mycotoxins, pesticides, and heavy metals in medicinal plants and the development of a rapid multi-analyte method for the simultaneous determination of eleven Mycotoxins in cereals by using LC/ESI/MS/MS. He worked as a senior lecturer at the Environmental Health Science Department in University Technology MARA Malaysia for three years from 2012 to 2014. He involved in supervising undergraduate and postgraduate students in their research projects such as hazardous waste management, risk assessment, environmental pollution monitoring in the aquatic and terrestrial environment, the fate of toxic pollutants and their environmental effects, analysis of the toxic substance in various environmental matrices, water, and wastewater treatment process. He has experience with analytical techniques and instrumentation including Atomic Absorption Spectroscopy (AAS), Inductively Coupled Plasma (ICP), Gas Chromatography (GC), High-Performance Liquid Chromatography (HPLC), and Liquid Chromatography Mass Spectrometry (LCMS/MS), ISO/IES 17025 accreditation. He has worked in the Department of Environment – Iran since 2015 in the Environmental Pollution Monitoring Office and the Waste Management Bureau. He is currently the director of Basel and Stockholm Conventions Regional Centre in Iran. Over the last few years, he published several research articles in refereed journals as well as seminar proceedings in the field of environmental pollution and waste management.