Council

Participation:

Cynthia V. Rider

President (2025–2026)

Durham, NC

Dr. Cynthia Rider is a toxicologist with the National Toxicology Program (NTP), National Institute of Environmental Health Sciences (NIEHS), where she serves as project leader for a diverse portfolio of testing programs including polycyclic aromatic compounds, botanical dietary supplements, and industrial chemicals. As a study scientist, she designs, evaluates, and communicates results from in vitro and in vivo toxicological studies of chemicals selected for investigation by the NTP. Dr. Rider’s research interests are in evaluating and refining methods to predict mixture toxicity based on data from components or whole reference mixtures. She has established several collaborations with industry, government, and academic scientists to advance the field of mixtures toxicology. Her overarching goal, through her research efforts at NTP and collaborative partnerships, is to generate robust toxicological data to inform risk assessment of mixtures, including chemical and nonchemical stressors. She received her BS from Tulane University in Environmental Studies and Biology and her PhD from North Carolina State University in Environmental Toxicology. She completed postdoctoral training in the Reproductive Toxicology Branch of the National Health and Environmental Effects Research Laboratory, US Environmental Protection Agency and the Nicholas School of the Environment at Duke University. She became a Diplomate of the American Board of Toxicology in 2011.

Participation:

James P. Luyendyk

Vice President (2025–2026)

Michigan State University

Dr. Luyendyk is the Albert and Lois Dehn Endowed Chair and Professor in Pathobiology and Diagnostic Investigation and member of the Institute for Integrative Toxicology at Michigan State University. Dr. Luyendyk has 15 years of uninterrupted support from the National Institutes of Health (NIH) for his research focused on mechanisms linking components of the hemostatic system with hepatotoxicity and liver repair/regeneration. He is a prior recipient of the National Institute of Environmental Health Sciences (NIEHS) Outstanding New Environmental Scientist Award.

Dr. Luyendyk has published nearly 130 peer-reviewed manuscripts and co-authored the liver chapter of Casarett & Doull’s Toxicology. He has served on the editorial board of Toxicological Sciences and as a standing member of the Xenobiotic and Nutrient Disposition and Action Study Section, including as Chairperson. Dr. Luyendyk also is a Fellow of the Academy of Toxicological Sciences.

Dr. Luyendyk has been a meaningfully engaged member of SOT for more than 20 years, joining in 2001. Previously, Dr. Luyendyk served on SOT Council as the Secretary and was Chair of the SOT Graduate Student Leadership Committee Executive Board, the SOT Postdoctoral Assembly Board, and SOT Committee on Diversity Initiatives. Within the Component Groups, he has served as President of the Michigan Regional Chapter and as a Councilor for the Central States Regional Chapter and Mechanisms Specialty Section.

Participation:

Robyn L. Tanguay

Vice President-Elect (2025–2026)

Michigan State University

Dr. Tanguay is a distinguished scholar recognized for her groundbreaking research on zebrafish models, which has significantly enhanced our understanding of how chemicals impact embryonic development. Her team has pioneered the use of zebrafish in predictive toxicology, developing automated high-throughput instrumentation, protocols, and software tools that expedite phenotype discovery. Her talented group has assessed the bioactivity of thousands of chemicals and mixtures, including polycyclic aromatic hydrocarbons (PAHs), TCDD, ethanol, flame retardants, nicotine, pesticides, pharmaceuticals, nanomaterials, and complex environmental mixtures. Utilizing a variety of techniques—such as systems biology, imaging, molecular biology, genetics, transcriptomics, metabolomics, and bioinformatics—Dr. Tanguay aims to elucidate toxicity mechanisms and inform the development of safer chemicals and nanoparticles.

Dr. Tanguay has mentored dozens of PhD and postdoctoral scholars, helping them launch successful careers.

With over 300 co-authored manuscripts and book chapters across diverse disciplines, Dr. Tanguay serves on various federal and commercial advisory boards and is an editor for several scientific journals. She also directs the NIEHS-supported Oregon State University Superfund Research Center and the Sinnhuber Aquatic Research Laboratory.

Dr. Tanguay has been an SOT member since 2000 and has made extensive contributions to the Society over the years. She served as a Councilor from 2021 to 2024 and as Chair of the Membership Committee from 2011 to 2012. Her service spans multiple Committees and groups, including the Board of Publications, Committee on Diversity Initiatives, Long Range Planning Committee, and several Specialty Sections such as Nanoscience and Advanced Materials, Reproductive and Developmental Toxicology, and Neurotoxicology. She held multiple officer roles within the Pacific Northwest Regional Chapter, including President, and has been actively involved in Special Interest Groups such as Out Toxicologists and Allies and Women in Toxicology. Dr. Tanguay’s long-standing leadership reflects her deep commitment to fostering excellence and inclusion across the SOT community.

Goals for SOT
In the ballot, Dr. Tanguay stated the following as her goals for service as Vice President-Elect:

• Help SOT maintain and enhance its reputation, impact, and relevance by expanding membership and fostering diverse perspectives in problem-solving.
• Amplify the positive impact of SOT by maximizing the visibility and influence of its members and ensuring the Society continues to be recognized as an unbiased scientific authority.
• Enhance the Society’s organizational efficiency, financial stability, and forward-thinking approaches by streamlining operations and optimizing resource allocation.
• Keep SOT at the forefront of the field through collaboration, adoption of new technologies, and advocacy for sustainable practices that benefit the toxicology community.

Participation:

Rebecca C. Fry

Treasurer (2025–2027)

University of North Carolina at Chapel Hill

Dr. Fry is the Carol Remmer Angle Distinguished Professor at the Gillings School of Global Public Health at the University of North Carolina at Chapel Hill (UNC-Chapel Hill). She is the Acting Chair of the Department of Environmental Science and Engineering. She is also the Director of UNC-Chapel Hill’s National Institute of Environmental Health Sciences (NIEHS)–funded Superfund Research Program and the Founding Director of the Institute for Environmental Health Solutions at UNC-Chapel Hill.

Dr. Fry’s laboratory focuses on understanding the mechanisms that link prenatal exposure to toxic substances with adverse health outcomes in the mother or child with a focus on the epigenetic basis of disease. She has an outstanding publication and mentoring record in the field of toxicology and environmental sciences.

Dr. Fry has the experience that is necessary to serve as a strong and effective SOT Treasurer, including managing multi-million dollar budgets within the Department of Environmental Sciences and Engineering, the UNC-Chapel Hill Superfund Research Program, and the Institute for Environmental Health Solutions. In her leadership roles at UNC-Chapel Hill, she manages budgeting processes, which involve developing and maintaining budgets, monitoring expenses, and ensuring that the groups operate within their financial limits. Additionally, she is responsible for preparing annual reports detailing fiscal spending in these areas. In each of these roles, she has shown her dedication to being an effective collaborator, integrating voices across disciplines and working with diverse groups. She is committed to fostering transparent and productive work environments.

Dr. Fry is currently an Associate Editor for Toxicological Sciences.

She has been committed to SOT since joining in 2010. She received the Society’s Translational Impact Award in 2021 and has served as a member of the Society’s Awards Committee. She also served as the Secretary/Treasurer of the SOT Metals Specialty Section (MSS) prior to serving as the MSS President and as a Councilor for the Stem Cells Specialty Section.

Participation:

Matthew J. Campen

Secretary (2024–2026)

University of New Mexico

Dr. Matthew J. Campen is a Regents’ Professor in the Department of Pharmaceutical Sciences in the College of Pharmacy at the University of New Mexico (UNM). His laboratory is broadly interested in the cross-talk of the cardiovascular and respiratory system in health and disease. His primary research focus involves the impact of inhaled toxicants, especially common air pollutants, on vascular function and injury. Prior to joining UNM, he worked at the Lovelace Respiratory Research Institute as the Director of Physiology, conducting contract-based safety and efficacy research, as well as developing an independent program on air pollution toxicology. Dr. Campen directs the new NIGMS-funded New Mexico Center for Metals in Biology and Medicine at UNM, and is incoming coPI for the UNM Clinical and Translational Science Center. He also is the Deputy Director for the NIEHS P42 UNM Metal Exposure and Toxicity Assessment on Tribal Lands in the Southwest (UNM METALS) Superfund Research Program Center. Dr. Campen currently serves as a Deputy Editor for Toxicological Sciences and, in 2013, he shared the Toxicological Sciences Editor-in-Chief position with Dr. John Lipscomb. He has authored more than 120 peer reviewed publications largely in the area of air pollution health effects.

Participation:

Dana C. Dolinoy

Secretary-Elect (2025–2026)

University of Michigan School of Public Health

Dr. Dolinoy is the NSF International Chair of Environmental Health Sciences and Professor of Environmental Health Sciences and Nutritional Sciences at the University of Michigan School of Public Health and Director of the Michigan Lifestage Environmental Exposures and Disease (M-LEEaD) Center. Dr. Dolinoy has 15 years of continuous support from the National Institutes of Health for her research investigating how nutritional and environmental factors interact with epigenetic gene regulation to shape health and disease. She is a recipient of the National Institute of Environmental Health Sciences (NIEHS) Revolutionizing Innovative, Visionary Environmental Health Research (RIVER) Award and a prior recipient of the NIEHS Outstanding New Environmental Scientist Award.

Dr. Dolinoy has published over 160 peer-reviewed manuscripts and is the Volume Editor of “Developmental Toxicology” within the 3rd and 4th editions of Comprehensive Toxicology. She has served as Associate Editor of Environmental Health Perspectives and Environmental Epigenetics and as elected Chair of the 2015 Gordon Research Conference in Cellular & Molecular Mechanisms of Toxicity. In 2015, Dr. Dolinoy received the NIH Director’s Transformative Award to develop piRNA epigenetic editing technologies and has recently co-edited the book ToxicoEpigenetics: Core Principles and Applications.

Dr. Dolinoy has been an engaged member of SOT for 19 years, first joining as a graduate student member in 2005. Dr. Dolinoy has served in the Presidential Chain of the SOT Molecular Systems Biology Specialty Section (2017–2021) and as a member of the Board of Publications (2015–2019) and currently serves as Associate Editor of Toxicological Sciences (2014–present) and on the Finance Committee (2022–present). In 2016, she co-chaired a SOT Contemporary Concepts in Toxicology (CCT) meeting, “ToxicoEpigenetics: The Interface of Epigenetics and Risk Assessment.” Dr. Dolinoy has been recognized by SOT with the Women in Toxicology Investigator Award in 2017, the SOT Achievement Award in 2018, and the SOT Leading Edge in Basic Science Award in 2021.

Goals for SOT
In the ballot, Dr. Dolinoy stated the following as her goals for service as Secretary-Elect:

• Eliminate barriers to participation and ensure a welcoming environment for all members.
• Encourage translation of toxicology research into real-world applications to advance public health and biomedical science.
• Accelerate the Society’s impact by enhancing education and training, strengthening community networking, and leveraging technology for communication and collaboration.

Participation:

Laurie C. Haws

President (2025–2026)

ToxStrategies, LLC

Dr. Laurie Couture Haws has more than 30 years of experience in the fields of toxicology, human health risk assessment, safety assessment, and risk communication. Dr. Haws has a diverse background, having worked for both government agencies and the private sector in a variety of capacities. She began her career as a scientist at the National Institute of Environmental Health Sciences, where she worked while pursuing both her MS and PhD under the direction of Dr. Linda Birnbaum. Dr. Haws then spent more than a decade as a regulatory toxicologist with the Texas Commission on Environmental Quality (TCEQ), where she served as a manager in the Toxicology Division. During her tenure with the TCEQ, Dr. Haws was committed to expanding the role and prominence of toxicology within the Commission and was instrumental in growing the group from 3 to more than 30 toxicologists. In 2008, Dr. Haws co-founded ToxStrategies, where she serves as a Managing Principal Scientist and President. During her tenure in leading ToxStrategies, the company has grown from 2 to over 60 scientists and has expanded to provide technical and regulatory support for pharmaceuticals/biopharmaceuticals, foods, dietary supplements, pet food, animal feed, consumer products, and health and beauty care products. Key initiatives under her leadership included establishment of the Center of Excellence for 21st Century Toxicology to assist clients with the transition from traditional toxicology testing strategies to 21st century toxicology tools and technologies for the purpose of supporting the safety decision process from compound discovery to regulatory submission across different sectors, as well as the addition of EpidStrategies which is focused on contributing to research on complex health conditions to improve public health.

Dr. Haws is an author on 61 peer-reviewed publications. In addition, she currently serves on the Board of Directors for the Toxicology Forum and is an active member of several additional professional societies, including ACT, SRA, and RAPS. Dr. Haws has also served on a number of scientific panels, technical workgroups, and advisory committees, including the World Health Organization’s Toxic Equivalency Factor Review Panel and the Exposure and Human Health Committee of the US EPA’s Science Advisory Board.

Participation:

Chidozie J. Amuzie

Councilor (2023–2026)

Johnson & Johnson

Dr. Dozie Amuzie is the Head of Johnson & Johnson Innovation-JLABS in Canada where he is responsible for external engagement, innovation sourcing, new company onboarding, educational programming, and portfolio management. He is trained, board-certified, and experienced in comparative pathology and toxicological sciences. Before his current role, Dr. Amuzie was at Janssen Pharmaceutical R&D, where he was nonclinical safety representative on projects and led the North American Discovery and Project Pathology organization. Dr. Amuzie is a modality-agnostic safety assessment leader and had the privilege to work with teams that drove discovery or acquisition of several biopharmaceutical entities across 10 modalities from early discovery through clinical development and some regulatory approvals. His scientific leadership has helped shape strategies for safety assessment of some novel modalities at Janssen R&D. Prior to joining Janssen R&D, Dr. Amuzie was the Associate Director of Pathology at MPI Research, where he spent about five years in various pathology roles, on diverse nonclinical safety assessment studies. He also provided scientific leadership for the biomarker and investigative pathology unit.

Dr. Amuzie has authored/coauthored six book chapters and 22 peer-reviewed manuscripts in different areas of immunotoxicology, pathobiology and animal models of disease. He was a guest editor on a 2022 Toxicologic Pathology journal special issue that created practical knowledge on the pathology of laboratory nonhuman primates.

Participation:

Corie A. Ellison

Councilor (2025–2028)

Procter & Gamble Company

Dr. Ellison is a Principal Scientist at the Procter & Gamble Company. He has published over 30 articles and book chapters in toxicology and risk assessment. His current research efforts are in the areas of pharmacokinetics (absorption, distribution, metabolism and excretion) and new approach methods, particularly in addressing how findings in these fields can improve human health risk assessment for chemicals.  

Dr. Ellison is currently a committee member for the National Academies of Science, Engineering, and Medicine (NASEM) Board on Environmental Studies and Toxicology (BEST), as well as the NASSEM Scientific Advisory Committee on Alternative Toxicological Methods (SACATM). Dr. Ellison also was on the NASEM committee on Variability and Relevance of Current Laboratory Mammalian Toxicity Tests and Expectations for New Approach Methods (NAMs) for Use in Human Health Risk Assessment. He also contributed to the OECD 231 Guidance document on the characterization, validation, and reporting of physiologically based kinetic (PBK) models for regulatory purposes. 

Dr. Ellison has been an active member of multiple international research programs, including The Cosmetics Europe Long Range Science Strategy program and the International Committee on Cosmetic Safety program. He also contributed to the development of training materials for the Animal Free Safety Assessment Collaboration, a multi-sector partnership to advance the acceptance of animal-free safety science. 

Dr. Ellison has been a member of SOT since 2008 and has served in several leadership and committee roles. Dr. Ellison has served as the Co-Chair and Chair for the former SOT Committee on Diversity Initiatives.  

He has chaired the Inclusion, Diversity, and Engagement Committee (IDEC) (formerly the Committee on Diversity Initiatives. He has also received the SOT Perry J. Gehring Risk Assessment Student Award and the Regulatory and Safety Evaluation Student Travel Award. Dr. Ellison’s service to the Society reflects his long-standing commitment to inclusion, mentoring, and the advancement of public health. 

Goals for SOT 
In the ballot, Dr. Ellison stated the following as his goals for service as Councilor:

• Embrace servant leadership by prioritizing the needs of SOT members and empowering the next generation of toxicologists. 
• Foster community building to strengthen the Society and ensure relevance to all communities. 
• Raise public awareness of toxicology and its role in health and safety by bridging the gap between scientists and the public. 
• Promote interdisciplinary collaboration to drive innovation and increase the impact of toxicological research. 

Participation:

Joshua P. Gray

Councilor (2025–2028)

US Coast Guard Academy

Dr. Gray is Professor and Head of the Department of Chemical & Environmental Sciences at the United States Coast Guard Academy. He primarily teaches toxicology, microbiology, chemistry, and biochemistry undergraduate courses to students majoring in marine and environmental sciences, the second-ever ABET-accredited undergraduate program in natural sciences. 

Dr. Gray is passionate about toxicology education and has been continuously involved in education-focused SOT activities since 2008. He led the Undergraduate Education Subcommittee 2014–2015 and served in its successor, the Faculty United for Toxicology Undergraduate Recruitment and Education (FUTURE) Committee. He chaired the Learning Objectives Work Group to create the Undergraduate Toxicology Learning Framework, a tool that helps faculty build undergraduate toxicology courses by providing learning goals aligned with AAAS’s Vision and Change framework. In 2020, SOT appointed Dr. Gray as the Co-Editor of Toxicology for the pedagogical journal CourseSource, which produces teaching modules for use in the undergraduate science classroom. Dr. Gray champions evidence-based practices and has volunteered with the Inclusion, Diversity, and Engagement Committee (formerly Committee for Diversity Initiatives) since 2008. Following the educational venture between SOT and the nationwide ToxMSDT mentoring program, Dr. Gray joined the oversight team for module development. For this effort, he has recruited authors and edited online modules to introduce undergraduate students to toxicology, including a new iteration of ToxTutor. His efforts to promote undergraduate education extend to the regional level, where he co-led the development of an undergraduate breakout session in NESOT and inspired the creation of a regional chapter grant program. Dr. Gray’s dedication to undergraduate education was honored with the SOT Undergraduate Educator Award in 2018. He is currently the Past President of SOT Northeast Regional Chapter and served as Chair of the SOT Awards Committee 2022–2023. 

Dr. Gray is the Principal Investigator of a National Science Foundation IUSE grant involving six SOT members to develop a C. elegans–based Course-Based Undergraduate Research Experience (CURE) to expose more students to undergraduate toxicology research. His research interests include exploring the mechanisms of microplastic and oxidative stress toxicity in C. elegans and developing microbial biofuels for fuels. During the COVID-19 pandemic, Dr. Gray led the scientific component of the US Coast Guard’s surveillance testing program, establishing wastewater testing at four training locations. He also integrated SARS-CoV-2 into his biochemistry laboratory curriculum. For these efforts, he was honored with the Coast Guard Academy’s Civilian Employee of the Year Award and the Meritorious Team Commendation Award. 

Goals for SOT 
In the ballot, Dr. Gray stated the following as his goals for service as Councilor: 

• Contribute to current SOT strategic plan to build a broad community of skilled toxicologists by supporting the growth of Regional Chapters. Regional Chapters serve as an individual’s first point of contact with SOT, providing a crucial pathway toward the Society’s strategic goal of fostering mentoring and networking opportunities for all career stages. By offering relatively low-cost platforms for undergraduate, graduate, and postdoctoral students to present their research, regional meetings increase the visibility of student research and help SOT connect with these groups by recognizing successful regional initiatives and encouraging their adoption across other chapters. Regional Chapters can also enact national initiatives like the Lunch with an Expert and undergraduate education programs from four Regional Chapters to inspire broader implementation. Regional programs can potentially reach hundreds of undergraduates who may consider a career in toxicology. They also provide a critical mentoring component and allow for more frequent in-person interactions of SOT members of all career stages, as well as a training platform from which future SOT leaders can be identified. 
• Continue strengthening the trainee and early career–directed programs, which have inspired a generation of SOT leaders. This includes programs and initiatives supporting faculty and scientists working with and mentoring students. This aligns with the recently created SOT Career Advancement, Mentoring, and Networking Committee—providing more training in mentoring. I owe my career to the SOT education community, the work we accomplished, and the colleagues and friendships I’ve gained from working with them. I am committed to supporting these programs to ensure that future generations of toxicologists also benefit from them. 

Participation:

Darryl B. Hood

Councilor (2024–2027)

Ohio State University, College of Public Health

Dr. Hood’s passion regarding the importance of teaching, mentoring graduate students, postdocs, and junior faculty in the academy and toxicological research enterprise continues to be undergirded by the declining statistics documenting that less than 0.21% of persons holding PhD degrees in the sciences are from individuals that look like him. During the 32 years of his training at both an underrepresented minority academic health science center and research-intensive R01 institutions, he has grown to have a strong affinity for both learning environments. Making the transition from the Vanderbilt University School of Medicine-Meharry Medical College Alliance to the Ohio State University College of Public Health over that time period has allowed Dr. Hood the opportunity to significantly enhance his academic research and professional and collaborative leadership skill sets toward being an effective SOT Councilor.

Currently, Dr. Hood is a tenured Full Professor with a robust research portfolio and national reputation as a scholarly environmental public health neurotoxicologist. He also holds the administrative position of Deans’ Fellow for Diversity, Equity, and Inclusive Excellence in the College of Public Health at Ohio State University. Dr. Hood serves in leadership roles at the university, regional, state, and national levels. He is a member of the National Advisory Environmental Health Sciences Council at the National Institute of Environmental Health Sciences. He also serves as a member of the Children’s Environmental Health Committee and the Standing Committee on Emerging Science for Environmental Health Decisions and most recently as a member on the Public Health Research and Surveillance Priorities from the East Palestine, Ohio, Train Derailment at the National Academies of Science, Engineering, and Medicine.

The combination of Dr. Hood’s broad academic, research, service, and diverse work experiences in different settings has allowed him to identify and form connections between and among various people, professions, and organizations. His approach as an academic leader and manager includes joining, assembling, and interacting with functional collaborative and cooperative groups. He refers to himself as an active partner relying on more than delegation to initiate and complete various tasks and projects. He has a passion for generating and catalyzing ideas from others to create, develop, strategize, prioritize, implement, and achieve the stated goals. In all his work, Dr. Hood has been able to build consensus enthusiastically and politely in a very deliberate and organized manner which will serve him well in the role of Councilor.

Dr. Hood has been an SOT member since 2000. He has previously served as the Chair of the SOT Education and Career Development Committee and President of the SOT Toxicologists of African Origin Special Interest Group.

Participation:

Agnes L. Karmaus

Councilor (2024–2027)

Syngenta Crop Protection, LLC

Passionate about toxicology, Dr. Karmaus has grown into her career through engagement with SOT. Dr. Karmaus is currently a Senior Computational Toxicologist and Human Safety Project Expert at Syngenta Crop Protection LLC, specializing in the integration of in vitro and computational toxicology in risk assessment context. Her expertise lies in high-throughput screening and predictive toxicology, and her work focuses on developing, evaluating the performance, and integrating alternative approaches to animal testing.

Dr. Karmaus has a diverse research background. Having completed a dual PhD degree in biochemistry/molecular biology and environmental/integrative toxicology at Michigan State University in the laboratory of Dr. Tim Zacharewski, her early research included evaluating species-comparative metabolomic and toxicogenomic hepatotoxicity of dioxin both in vivo and in vitro. Meanwhile, her dissertation comprised in vitro assay development, establishing the BLTK1 murine Leydig cell line as an assay system for identifying steroidogenesis-disrupting compounds.

In addition to laboratory-based research, Dr. Karmaus was the recipient of the 2012 SOT Colgate-Palmolive Award for Student Research Training in Alternative Methods as well as the ILSI North America Food and Chemical Safety Summer Fellowship Award, both of which she used to begin her training in computational toxicology by immersing herself in the Tox21 and ToxCast programs, focusing her work on the evaluation of food-use compounds. Subsequently, as a postdoctoral fellow within the US Environmental Protection Agency National Center for Computational Toxicology, Dr. Karmaus formally contributed to the Tox21 and ToxCast high-throughput screening programs. Her work has culminated in 42 peer-reviewed publications as well as two book chapters across multiple disciplines with a broad network of collaborators and research interests.

Dr. Karmaus has been an active member of SOT since joining in 2007 and has attended every Annual Meeting and ToxExpo since the junior year of her undergraduate degree. Dr. Karmaus devotes significant time to volunteering with SOT, serving as Chair of the SOT Education and Career Development Committee and Councilor for the SOT In Vitro and Alternative Methods Specialty Section, and is a strong advocate for the success of SOT programs encouraging diversity and early career scientists. She has participated in several sessions to promote SOT activities, encouraging graduate student membership to pursue internships and fellowships and supporting international members with navigating opportunities offered by SOT.

Participation:

Jennifer L. Rayner

Councilor (2023–2026)

SRC, Inc.

Dr. Rayner is a toxicologist at SRC, Inc. in Arlington, VA where she works with a team to develop toxicity assessments and technical documents to protect human health and decrease environmental impacts. She serves as a Program and Task Order Manager for various projects supporting the United States Environmental Protection Agency in their mission to ensure the safety of new chemicals in commerce. Dr. Rayner manages a multidisciplinary team of toxicologists, chemists, and biologists at SRC to develop, update, and implement methods to fill data gaps where little or no experimental measured mammalian or ecotoxicological data are available including: close analogue analysis, structural chemical class analogy, mechanisms of toxicity, adverse outcome pathways, quantitative structure-activity relationships (QSARs), and professional judgment. On a day-to-day basis, she conducts critical analysis of scientific literature, toxicological studies, and reports and writes summaries, technical documents, risk assessments, and literature reviews to present findings to external stakeholders.

Dr. Rayner devotes significant time to volunteering with SOT and various community groups related to science education and mentoring. She has been involved with SOT since 2001 when she attended the Committee on Diversity Initiatives (CDI) Undergraduate Diversity Program. She has continued involvement with the CDI Undergraduate Program through the years, serving as Peer Mentor, Host Mentor, CDI Committee member, and CDI Chair. Other activities include SOT Table Host for In Vitro Toxicology Lecture and Luncheon, SOT Mentoring Breakfast facilitator, SOT Mentoring Task Force member, SOT Continuing Education Committee, Councilor for SOT Toxicologists of African Origin, and SOT Continuing Education Committee Co-Chair and Chair. Dr Rayner also serves as a mentor in the Toxicology Mentoring and Skills Development Training Program, a year-long mentoring program for undergraduate students, in which has been able to guide the development of future scientists. She firmly believes in helping the next generation to be successful and her passion is to see more underrepresented students in toxicology.

Participation:

Tonia M. Masson

Executive Director

Society of Toxicology

Ms. Masson previously served as the SOT Deputy Director and continues to serve SOT Council in shaping the strategy for fostering collaboration opportunities and guiding SOT’s mission.

Ms. Masson has been with AIM, our management company, since 1999 and is a founding managing partner. She served as the Executive Director for the Environmental Mutagenesis and Genomics Society, the Teratology Society, and the Toxicology Forum.

Ms. Masson is a member of the American Society of Association Executives (ASAE).