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My teaching and research interests are in the areas of environmental chemistry, biogeochemistry and water quality modeling. I teach undergraduate and graduate-level classes in environmental engineering, aquatic chemistry and biogeochemistry.

My research interests are in environmental chemistry and biogeochemistry. I have focused on assessing and quantifying the response of ecosystems to disturbances. The research is largely field-based. Models are alsoused as a research tool to understand the effects of ecosystem disturbance and as a management tool to evaluate ecosystem response to mitigation strategies. An important resource for the research program is the Center for Environmental Systems Engineering (CESE), which includes state-of-the-art analytical equipment.

A principal research focus has been the investigation of effects of acidic deposition and mercury deposition on forest, aquatic and coastal ecosystems. Much of my research on effects of air pollution on forest and aquatic ecosystems occurs in the Adirondack region of New York and New England.

I also study the structure and function of forest ecosystems through research at the Hubbard Brook Experimental Forest in New Hampshire.

Finally, I am investigating controls on surface water quality in lakes and rivers in Central New York and embayments to Lake Ontario. I am engaged in a range of service activities related to national, regional and local initiatives related to air and water quality and land-disturbance.