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Ecotoxicology Analysis Research Branch

Dale J. Hoff, Branch Chief and Supervisory Research Toxicologist

The Ecotoxicology Analysis Research Branch develops models to support species and dose extrapolations and the interpretation and prediction of site-specific effects. This branch is a focal point for delivery of ecotoxicology databases and modeling systems to EPA and to the States, Tribes, and other partners.


Richard Bennett, Research Toxicologist
Lawrence P. Burkhard, Research Toxicologist
Philip M. Cook, Research Chemist
Steve A. Diamond, Research Biologist
Russell J. Erickson, Research Chemist
Joseph Fernandez, Research Chemist
Patrick Fitzsimmons, Biologist
Terry L. Highland, Biological Science Laboratory Technician
J. Russell Hockett, Aquatic Biologist
Alex Hoffman, Chemist
Correne Jenson, Physical Science Technician
Douglas Kuehl, Research Chemist
Marta T. Lukasewycz, Chemist
David R. Mount, Research Aquatic Biologist
John Nichols, Research Toxicologist
Christine Russom, Research Biologist
Charles E. Stephan, Research Environmental Scientist
Frank Whiteman, Biologist

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