I am Rehan Ullah, a recent graduate in Zoology from Hazara University, Pakistan, with a specialization in fisheries and aquatic toxicology. My research focuses on the impacts of emerging pollutants, such as microplastics, heavy metals, pharmaceuticals, and pesticides, on freshwater fish, assessed through hematological, biochemical, genotoxic, neurotoxic, and multivariate approaches. I have authored peer-reviewed publications and actively engage in international conferences and scientific training. I am committed to advancing my studies in toxicology and sustainable aquatic resource management.