Election of Officers takes place in the fall of each year. Terms of office are two (2) calendar years unless noted otherwise. Positions include: President (3-year term, beginning as President- Elect, then President, then Past-President), Secretary/Newsletter Editor, Treasurer/Membership Officer (3-year term), Website Officer (3-year term), Member-at-Large, Business, University and Government Representatives, and two (2) Student/Postdoc Representatives (elected in alternate years).

If you would like more information or wish to volunteer to be put on the ballot for election, please contact the current President of GETA.

2022 GETA Board Members


Sarah Elmore

Sarah Elmore, Ph.D. is an Associate Toxicologist with the Cancer Toxicology and Epidemiology Section of the Office of Environmental Health Hazards Assessment (OEHHA). Sarah's work is focused on cancer hazard identification and risk assessment. Prior to starting her work at OEHHA in 2018, Sarah was a Post-Doctoral Researcher at UC Davis where she investigated the toxicity and carcinogenicity of personal care products and pesticides. Sarah received her Bachelors in Biomedical Science (2010) and PhD in Toxicology (2016) from Texas A&M University. Sarah served as the 2018-2020 GETA Secretary and is an active member of the Society of Toxicology. She lives in Santa Cruz with her husband where they enjoy surfing, hiking, biking and fishing.

President-Elect / Treasurer

Jennifer Hsieh

Jennifer Hsieh, Ph.D., D.A.B.T. is a Staff Toxicologist (Specialist), in the Branch of Reproductive and Cancer Hazard Assessment, Office of Environmental Health Hazard Assessment (OEHHA), California Environmental Protection Agency (CalEPA) since 2007. Her work specializes in cancer hazard identification and carcinogen risk assessment. She received her B.S. and M.S. degrees in pharmacological science and her Ph.D. from the Environmental Toxicology Program at Michigan State University. She did her post-doctoral training at the Cancer Center, UC Davis. Before OEHHA her research focused on investigating the potential mechanisms of carcinogenesis in breast and prostate cancers.

Past President

James Nakashima

As a toxicologist for the Pesticide Environmental Toxicology Branch in the Office of Environmental Health Hazard Assessment, Dr. Nakashima serves as an exposure assessor and expert on pesticide-related illness reporting. Previously, he managed a pre-clinical drug discovery program for Solanan, Inc., and held a faculty position at Brown University in the Department of Pathology and Laboratory Medicine. James received his PhD in Comparative Pathology from UC Davis, and postdoctoral training at Letterman Army Institute of Research and Brown University. His scientific interests include vascular peptide biology, pathogenesis of pulmonary fibrosis and sepsis, and regulation of the immune system.

Secretary/Newsletter Editor

Anna Kalishnikova

Member at Large


University Representative

Sascha C.T. Nicklisch

Sascha C.T. Nicklisch, Ph.D., is an Assistant Professor of Environmental Toxicology at UC Davis. Dr. Nicklisch received his M.S. in Biological Sciences and his PhD in Protein Biochemistry at the University of Cologne, Germany. He has additional experience in Consulting for Startups and working in agrichemical (pesticides) and pharmaceutical (biosimilars and biological therapeutics) industries. His lab investigates the molecular mechanisms underlying persistent organic pollutant (POP) bioaccumulation in humans and other organisms. Understanding how chemicals evade evolutionarily conserved cellular defense systems can aide in the rational design of novel chemotherapeutics and greener environmental chemicals. In his free time, he enjoys running with his Standard Poodle Yoshi, practicing martial arts and tackling DIY home improvement projects.

Government Representative

Kim Truong

Business Representative

Sarah Dahlberg

Ms. Dahlberg is an environmental health scientist who specializes in health risk assessment, practical toxicology, and regulatory science. She has extensive experience with conducting systematic literature reviews and meta-analyses, evaluating and assessing biases in epidemiologic studies, data visualization including the use of GIS software, quantitative exposure science, and using novel paradigms for hazard identification. Her experience includes assessing human health risk from exposure to a variety of chemical agents, such as volatile and semi-volatile organic compounds (e.g., benzene, methacrylates, toluene), metals / metalloids (e.g., lead, arsenic, cadmium, nickel), perflourinated compounds (e.g., perfluorooctanoic acid or PFOS), and silicates (e.g., asbestos, crystalline silica).

Website Officer

Keith Morris-Schaffer

Dr. Morris-Schaffer is a toxicologist whose work involves evaluating potential health effects associated with environmental agents, solvent residuals, consumer chemical products, and pesticides. He recieved his M.S. and Ph.D. from the University of Rochester Toxicology Program. He specializes in preparing scientifically defensible toxicology assessment reports for chemical stewardship and regulatory programs, which includes deriving or supporting valid acute and chronic human health risk assessment thresholds for all routes of exposure. He has conducted toxicology evaluations of conventional pesticides and biopesticides, including assisting clients with regulatory strategies for scientific waiver rationales, addressing data gaps, and coordinating product toxicology testing. His research background is in developmental neurotoxicity and he has provided technical guidance to clients on the potential neurotoxicity effects of pesticides and other chemicals.

Post-Doc Representative

Dorothy You

Student Representative

Chaeyoung Kim

1980-1995 1996-2011 2012-Present
1980 - Anthony Carrano 1996 - Andrew Wyrobek 2012 - Greg Brorby
1981 - Robert Hill 1997 - Rob Scofield 2013- Kat Navarro
1982 - James MacGregor 1998 - Kim Hooper 2014- Matt Le
1983 - James Bartholomew 1999 - Janice Yager 2015- Heather Bolstad
1984 - Joseph Brown 2000 - Jim Cleaver 2016- Ouahiba Laribi
1985 - James Felton 2001 - Steve Dizio 2017- Gwen Osborne
1986 - Caroline Sigman 2002 - Melanie Marty 2018- Leona Scanlan
1987 - Martyn Smith 2003 - Melanie Marty 2019- Puttappa Dodmane
1989 - Regine Goth-Goldstein 2004 - Karen Steinmetz 2020 - Maxwell Leung
1990 - Carol Green 2005 - Thomas McDonald 2021 - James Nakashima
1991 - Charles Salocks 2007 - Amy Arcus-Arth
1992 - James Tucker 2008 - Lida Antonian
1993 - Jon Mirsalis 2009 - Greg Brorby
1994 - Collete Rudd 2010 - George CT Jiang
1995 - George Alexeeff 2011 - Kurt Fehling