The overarching goal of my research program is to help better predict, manage and respond to environmental contaminants that threaten human health. Contaminant distributions in soils, sediments an natural waters are controlled by a host of physical, chemical and biological processes, each of which can exert its influence over a range of spatial and temporal scales. My research integrates a suite of field, laboratory and spectroscopic approaches to better understand the sources, fate and transport of contaminants in the environment.