Welcome to our site! Research in the Laboratory for Aquatic Microbiology and Chemistry ("The Miller Lab") within the Zilber School of Public Health, Environmental Health Sciences is concerned with characterizing factors that regulate human exposure to naturally occurring or anthropogenic toxins in water or wastewater. We are particularly interested in understanding how microorganisms affect the concentration, fate and toxicity of harmful chemicals in the aquatic environment. The ultimate goal of this research is to formulate models (either numerical or conceptual) of toxin production, release, and degradation in aquatic ecosystems. Since the diversity of biochemical functions performed by microorganisms is only beginning to be realized, this research is both challenging and intriguing.