My research interests focus on contaminant transport, fate and behavior in the environment. In particular, I am interested in how the presence of mobile colloidal-sized particles can move in the environment and potentially impact the mobility of secondary contaminants sorbed to them. Specifically, I am studying the mobility of microplastic particles through soils and how naturally occurring colloids can facilitate the migration of metals such as radionuclides. In addition, I’m also studying how the interactions between particles in streams influence the mobility of pathogens within the water.