Mariem Trifi is a Postdoctoral Researcher at the Georesources Laboratory, Water Research and Technology Center (CERTE), Tunisia. Her research focuses on environmental geosciences, sediment characterization, geochemical analysis, and environmental pollution assessment.Her research interests include the spatial distribution and source identification of environmental contaminants, particularly polycyclic aromatic hydrocarbons (PAHs), heavy metals, and sediment pollution. She works with analytical and computational approaches, including Geographic Information Systems (GIS), Principal Component Analysis (PCA), and statistical methods to investigate contaminant distribution and environmental impacts.Her research contributes to understanding anthropogenic pollution sources and developing integrated approaches for environmental monitoring and assessment.