My current research interest is modeling the transport and dispersion of pollutants in the atmosphere. The main goal of this research is to gain a better understanding of how contaminants move (transport) from their source and how they spread (dispersion) into the atmosphere. This research involves the mathematical modeling of the basic physics for the transport and dispersion phenomena and a deep understanding of turbulence in the atmosphere. The following areas are part of my research activities: numerical methods to solve partial differential equations, computational geometry, developing fast methodologies to extract geometry information for the computational model, and visualization.