He received his PhD in Biological Resources Engineering from the University of Maryland in the year 2006. Dr. Nejadhashemi is a world-renowned scientist in the field of Hydrology and does extensive research on the subject. His specific research interests are in ecohydrology, sensitivity and uncertainty analysis of water quality mitigation approaches to address climate change, environmental impact assessment, development of models for evaluating water quality, development of models for evaluating human impact on ecosystem sustainability and pollution prevention in watersheds.