Jump to main content.

Contact Us

BOSC Executive Committee

The BOSC Executive Committee, which includes 20 members, meets three to five times each year. The meetings are held approximately once every 3 months, or as needed and approved by the Designated Federal Officer (DFO). With the approval of EPA, the BOSC Executive Committee establishes subcommittees or workgroups for any purpose consistent with the BOSC's charter. Such subcommittees or workgroups may not work independently of the chartered Executive Committee, and must report their recommendations and advice to the BOSC for full deliberation and discussion. Subcommittees and workgroups have no authority to make decisions on behalf of the BOSC, nor can they report directly to EPA.


Chair: Katherine von Stackelberg, Sc.D.
Research Manager, Harvard Center for Risk Analysis
Harvard School of Public Health,
and Principal, E Risk Sciences, LLP
Members: Edward W. Carney, Ph.D.
Scientific Director – Toxicology Research
The Dow Chemical Company
Susan E. Cozzens, Ph.D.
Vice Provost for Graduate Education and Faculty Affairs
Georgia Institute of Technology
Lisa Dilling, Ph.D.
Assistant Professor, Environmental Studies
Center for Science and Technology Policy Research/CIRES
University of Colorado - Boulder
Earthea A. Nance, Ph.D., PE, CFM
Associate Dean for Student Affairs/Associate Professor
Department of Planning and Urban Studies
Barbara Jordan-Mickey Leland School of Public Affairs
Texas Southern University
Diane E. Pataki, Ph.D.
Associate Professor of Biology and Ecology
University of Utah
Dennis J. Paustenbach, Ph.D., CIH, DABT
President, ChemRisk, Inc. LLC

John P. Tharakan, Ph.D.
Professor and Chair
Department of Chemical Engineering
Howard University


Katherine von Stackelberg, Sc.D.
Harvard Center for Risk Analysis
Harvard School of Public Health


Viney Aneja, Ph.D.
North Carolina State University


Sandra Smith, M.S.
URS Corporation
Principle Toxicologist/Project Manager


Robert Richardson, Ph.D.
Michigan State University


Courtney Flint, Ph.D.
Utah State University
Deptartment of Sociology, Social Work & Anthropology


Kenneth Reckhow, Ph.D.
Duke University
Professor Emeritus
Nicholas School of the Environment


Shahid Chaudhry MSc.
California Energy Commission


Paula Olsiewski, Ph.D.
Alfred P. Sloan Foundation


Tammy Taylor, Ph.D.
Pacific Northwest National Laboratory


Ponisseril Somasundaran, Ph.D.
Columbia University


Gina Solomon, M.D., M.P.H.
California EPA

Staff: Robert Kavlock, Ph.D.
Deputy Assistant Administrator for Science
Office of Research and Development
U.S. Environmental Protection Agency
  Thomas Tracy
Designated Federal Officer
Office of Research and Development
U.S. Environmental Protection Agency
Mail Code 8104R
1200 Pennsylvania Avenue, NW
Washington, DC 20460
202-565-2911 fax

Jump to main content.