PhD, Virginia Polytechnic Institute and State University
MS, Louisiana State University
BA, University of Texas at Austin
Sally Kleberg Professor of Environmental Toxicology
Nicholas School of the Environment
Director, Superfund Research Center
Director, Integrated Toxicology and Environmental Health Program
My research is focused upon molecular and organismal responses of aquatic animals to environmental stressors, particularly contaminants. The laboratory is concerned with both basic studies of mechanisms of contaminant metabolism, adaptation and toxicity, and with the development of sensitive, mechanistically-based indices of exposure and toxicity that can be used in biomonitoring of free-living organisms. Additionally, through collaborations, I seek innovative approaches for elucidating linkages between human and ecological health.
Current research activities are focused on the following three subjects: 1) the effects of polycyclic aromatic hydrocarbons (PAHs) on embryonic development, later life consequences, and adaptations in fish models, including mechanistic laboratory studies and field studies; 2) the effects of nanomaterials on vertebrate development, including interactions with other environmental variables such as UV radiation, organic matter, temperature and other contaminants; 3) the impacts of fossil fuel extraction, use and waste disposal on human ecological health.