ROGENE F. HENDERSON, Chair, Lovelace Respiratory Research Institute, Albuquerque, NM

RAMON ALVAREZ, Environmental Defense Fund, Austin, TX

TINA BAHADORI, American Chemistry Council, Arlington, VA

MICHAEL J. BRADLEY, M.J. Bradley & Associates, Concord, MA

DALLAS BURTRAW, Resources for the Future, Washington, DC

JAMES S. BUS, Dow Chemical Company, Midland, MI

JONATHON Z. CANNON, University of Virginia, Charlottesville

GAIL CHARNLEY, HealthRisk Strategies, Washington, DC

RUTH DEFRIES, Columbia University, New York, NY

RICHARD A. DENISON, Environmental Defense Fund, Washington, DC

H. CHRISTOPHER FREY, North Carolina State University, Raleigh

J. PAUL GILMAN, Covanta Energy Corporation, Fairfield, NJ

RICHARD M. GOLD, Holland & Knight, LLP, Washington, DC

LYNN R. GOLDMAN, Johns Hopkins University, Baltimore, MD

JUDITH A. GRAHAM (retired), Pittsboro, NC

HOWARD HU, University of Michigan, Ann Arbor

ROGER E. KASPERSON, Clark University, Worcester, MA

TERRY L. MEDLEY, E. I. du Pont de Nemours & Company, Wilmington, DE

JANA MILFORD, University of Colorado at Boulder, Boulder

DANNY D. REIBLE, University of Texas, Austin

JOESPH V. RODRICKS, ENVIRON International Corporation, Arlington, VA

ROBERT F. SAWYER, University of California, Berkeley

KIMBERLY M. THOMPSON, Harvard School of Public Health, Boston, MA

MARK J. UTELL, University of Rochester Medical Center, Rochester, NY

JAMES J. REISA, Director

DAVID J. POLICANSKY, Scholar

RAYMOND A. WASSEL, Senior Program Officer for Environmental Studies

SUSAN N.J. MARTEL, Senior Program Officer for Toxicology

ELLEN K. MANTUS, Senior Program Officer for Risk Analysis

EILEEN N. ABT, Senior Program Officer

RUTH E. CROSSGROVE, Senior Editor

MISADA KARALIC-LONCAREVIC, Manager, Technical Information Center

RADIAH ROSE, Manager, Editorial Projects