Rosanna Wong is a Risk Analyst at Risk Sciences International (RSI), where she supports multidisciplinary projects at the intersection of climate resilience, food systems, and public safety. Since joining RSI in 2021, Rosanna has contributed to a broad range of research areas, including foodborne disease, intentional food adulteration, transportation and natural disaster risks, and climate change adaptation strategies.

Dr. Cote is an Associate Expert at Risk Sciences International, where she brings world-class expertise in environmental health risk assessment, risk management, and science-informed public policy. She contributes to projects that require strategic application of risk methodologies to environmental, occupational, and chemical exposure issues—often at the intersection of regulation, sustainability, and health protection. Her work with RSI benefits from her deep understanding of both U.S. and international regulatory environments and her commitment to advancing decision-making through transparent and defensible science.

Dr. Shintaro Hagiwara is a Risk Analyst and Statistician at Risk Sciences International (RSI), where he contributes cutting-edge statistical insight to risk assessments, particularly in chemical safety and public health. Since joining RSI’s technical team in 2018 and transitioning to a full-time role in 2023, he has applied his deep quantitative knowledge to building theoretical foundations and developing statistical software. Notably, he created the database-calibrated assessment process (DCAP) and the enhanced value-of-information (VOI) framework to aid in evidence-based regulatory decision-making, both of which have been reviewed by the Board of Scientific Counselors (BOSC). His applied statistical work provides assessments and tools to derive PODs for chemicals such as inorganic arsenic and fluoride to support both Canadian and international regulatory bodies.

Margaret Wilson is a Senior Risk Analyst at Risk Sciences International (RSI), where she has been a foundational member since the company’s inception in 2006. Drawing on a rare combination of scientific breadth and analytical precision, Margaret has supported and led a wide range of multidisciplinary projects spanning microbial and chemical food safety, prion diseases, climate-related risk prioritization, and global regulatory systems.

As a Senior Advisor and Associate Expert with Risk Sciences International, Dr. Leiss contributes unparalleled insight into the design, delivery, and evaluation of risk communication strategies for government, regulatory bodies, and civil society. His legacy work in building public trust around controversial science and his decades of thought leadership on consensus-building, science-based policy, and societal responses to risk make him a foundational contributor to RSI’s mission.

Dr. Anne Wiles joined Risk Sciences International (RSI) in 2008, where she currently serves as a Senior Analyst specializing in risk communication, perception, and governance. With a distinctive blend of expertise in language, regulation, and the use of science in decision-making, Anne has contributed to a wide range of RSI projects focused on the human and institutional dimensions of risk. Her work includes developing health risk communication strategies and drafting publicly accessible scientific information, advising on public messaging for nuclear energy and nuclear waste management, and supporting regulatory agencies in the evaluation and management of complex risk portfolios. She has been deeply involved in several RSI projects examining how mandates, institutional contexts, and public attitudes shape regulatory decision-making across federal domains. Anne has also contributed to scholarly work at RSI, including co-authoring a scoping review on the evolution of health and environmental risk decision-making, an article on the potential health risks associated with aluminum, and a book chapter on public concerns related to blood safety. In addition to her project work, Anne is a university instructor, teaching two courses: a broad overview of societal approaches to risk, and a graduate seminar on risk management in government, where she integrates academic theory with real-world regulatory case studies and risk communication practice.

Dr. Nataliya Karyakina is a Senior Toxicologist and Health Risk Analyst at Risk Sciences International (RSI), where she has served since 2008. She plays a central role in RSI’s work at the intersection of chemical safety, regulatory science, and human health. Drawing on more than three decades of experience, Dr. Karyakina contributes to complex projects involving the evaluation and assessment of hazardous properties of chemicals with different modes of action, hazard-based classification of chemical substances under CLP (EC) 1272/2008, and the development of health-based safety values for industrial and environmental chemicals for both workers and the general population.

Dr. Franco Momoli joined Risk Sciences International (RSI) in 2019 and currently serves as Vice-President, Chemical and Product Safety. In this role, he leads a multidisciplinary team of epidemiologists, risk assessors, toxicologists, and biostatisticians in conducting human health risk assessments related to environmental contaminants and consumer products. His practice group supports government agencies, regulatory bodies, and international partners in making science-informed decisions that safeguard public health.

Dr. Natalia (Natasha) Shilnikova is a Senior Health Risk Analyst at Risk Sciences International (RSI), where she has contributed since 2011 to some of the organization’s most analytically demanding and policy-relevant projects. With a background in medicine and a PhD in medical sciences, Dr. Shilnikova specializes in the synthesis of epidemiological evidence, human health risk assessment, toxicology, and critical literature reviews—applying her expertise across a spectrum of regulatory and public health priorities.

In Memoriam, Dr. Donald Mattison (1944-2026) Dr. Donald Mattison passed away at his home in Columbia, South Carolina on Sunday, March 22, with his family present. Don joined Risk Sciences International (RSI) in 2012 as Vice President and Chief Medical Officer, following a distinguished career spanning government, academia, and clinical practice in the United States. During his time at RSI, he contributed to 47 scientific publications and served as a trusted mentor and colleague to many across the organization.