Faculty, Staff and Students

Master in Environmental Metrology & Policy Program – for the Betterment of the World

Program Personnel

EMAP Staff

De-Jun Chen

De-Jun Chen, Ph. D., Assistant Professor

Metrology Lab Manager


Christine Tolentino, Program Coordinator

Tel: 202-687-1249, Email: emap@georgetown.edu

Georgetown University Faculty

Steve Metallo

Steven Metallo, Ph.D., Associate Professor, Department of Chemitry


A. Alan Mohhissi, Ph.D., Adjunct Professor, Department of Microbiology & Immunology
President of the Institute for Regulatory Science


Sarah Stoll, Ph.D., Professor, Department of Chemistry


Rosemary K. Sokas, M.D. M.S., M.Occ.H., Professor, Department of Human Science Faculty

yuye tong

YuYe J. Tong, Ph.D., Professor, Department of Chemistry

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Front lawn of National Institute of Standards and Technology building

NIST Personnel

Tom Allison

Thomas C. Allison, Ph.D., Research Chemist


Regina Easley, Ph.D., Research Chemist


Carlos Gonzalez, Ph.D., Chief, Division of Chemical Sciences

Will Guthrie

William Guthrie, M.S., Division Chief 

Katrice Lippa

Katrice Lippa, Ph.D., Group leader, Organic Chemical Measurement Sciences Group 

Adam Pintar

Adam L. Pintar, Ph.D., Research Statistician 


Antonio Possolo, Ph.D., NIST Fellow & Chief Statistician

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US Environmental Protection Agency headquarters

EPA Personnel

bob sonawane Profile

Bob Sonawane, Ph.D., Retired Toxicologist


Kevin Teichman, Ph.D., Senior Science Advisor


Ed Walsh, Senior Policy Advisor 

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Other Faculty

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Our Partners

The National Institute of Standards and Technology (NIST)

The National Institute of Standards and Technology (NIST) is the Nation’s ultimate scientific authority in validating and upholding the state-of- the-art science of measurements – metrology. From the air and water quality, smart electric power grids to advanced nanomaterials, innumerable products and services rely in some way on technology, measurement, and standards provided by the National Institute of Standards and Technology.

The U.S. Environmental Protection Agency (EPA)

The Environmental Protection Agency (EPA) is the primary agency of the United States federal government whose mission is to protect human and environmental health. The EPA is responsible for conducting environmental assessment, research and education to create and enforce standards and laws that promote the health of individuals and the environment.

Agilent Technologies

Agilent Technologies (Agilent) is an American public research, development and manufacturing company. Agilent is a leader in life sciences, diagnostics and applied chemical markets. Focusing on six markets, food, environmental and forensics, pharmaceutical, diagnostics, chemical and energy, and research, the company provides analytical instruments, software, services and consumables for the entire laboratory value chain.

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