Syed A. Sattar
Dr. Sattar, with nearly five decades of research experience, specializes in microbial pathogens, their environmental influence, and safe technologies for combating infectious agents. His research delves into how pathogens survive and spread via water, food, air, waste, and surfaces. Funding for his work comes from peer-reviewed sources and research contracts. He offers expertise to national and international agencies and the private sector. With an extensive publication record and over 350 invited lectures worldwide, Dr. Sattar's contributions to the field are substantial. Notable works include the 2013 reference text "Principles and Practice of Disinfection, Preservation & Sterilization" (5th ed; Wiley-Interscience). He's received several professional honors, including the M.S. Favero Lectureship, Lifetime Achievement Award, and the Hygieia Gold Medal.
Read More Patricia Larkin
Dr. Patricia Larkin's career is dedicated to policy and regulatory assessments, focusing on the intersection of social determinants of health and health equity. Her expertise lies in managing human health and environmental risks, particularly in energy, water resources, and climate change. Patricia's research explores Canadian innovation in energy regulatory decision-making and its impact on risk management. She has led interdisciplinary international research projects, addressing risk management in public decision-making and environmental issues like carbon capture and storage. As Chair of the Applied Risk Management Specialty Group of the Society for Risk Analysis, she continues to contribute to this field.
Read More Ian Arnold
Dr. Arnold, a former general surgeon and occupational health consultant in Labrador and Nouveau Quebec, served Quebec Cartier Mining Ltd and the Iron Ore Company of Canada from 1973 to 1981. He has held teaching positions at various Canadian medical faculties and currently serves as an Adjunct Professor at McGill University. Dr. Arnold earned his M.D. from Queen's University in 1968 and has an extensive publication and presentation record with over 100 papers. He has received numerous honors for his contributions to occupational health and workplace psychological health and safety.
Read More Paul Price
With 45 years of experience in exposure and risk assessment, Dr. Paul Price has worked with diverse organizations, including the U.S. EPA and Dow Chemical. Specializing in mixture risk assessments, he is an adjunct professor at the University of Iowa and serves on the European Food Safety Authority’s committee on combined exposures. A prolific author, Dr. Price is currently focused on publications concerning mixture risk assessment and the Mixture Adjustment Factor.
Read More Andrew Maw
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Andrew Maw, an Associate Expert at Risk Sciences International (RSI), specializes in digital service delivery, data-driven risk modeling, and regulatory transformation. With extensive experience as a senior executive in the Canadian federal public service, he helps clients transition to risk-based compliance models, leveraging advanced analytics, machine learning, and business transformation strategies to enhance decision-making and operational effectiveness.
Read More Daniel Krewski
Daniel Krewski began his career in the federal government of Canada, focusing on programs within Health Canada, particularly in food safety and environmental health. Trained in mathematics, statistics, and biostatistics, his multidisciplinary background reflects the complex nature of risk science. He later transitioned to academia, founding the McLaughlin Centre for Population Health Risk Assessment at the University of Ottawa. There, he developed new methodologies and collaborated internationally. In 2006, he co-founded Risk Sciences International, aiming to provide expert advice on diverse risk issues. His contributions have been instrumental in shaping risk assessment frameworks used by organizations like Health Canada and the U.S. Environmental Protection Agency. In 2023, Dr. Krewski passed the CEO's baton to Greg Paoli; he remains active as RSI Chief Risk Scientist.
Read More William Leiss
Dr. William Leiss held the NSERC/SSHRC Research Chair in Risk Communication and Public Policy at the Haskayne School of Business, University of Calgary, from 1999 to 2005. He has a substantial consulting background, collaborating with industry and various Canadian government departments on risk communication, risk management, public consultation, and multi-stakeholder consensus-building processes. Dr. Leiss has provided expertise on diverse issues, including pesticides, toxic chemicals, tobacco, prescription drugs, electric & magnetic fields, and genetic engineering. He earned his PhD from the University of California at San Diego.
Read More Donald Mattison
Don Mattison's career is an amalgamation of medicine, science, and public service. He started with a Bachelor's degree in Chemistry and Mathematics, followed by a Master's from MIT in Chemistry. He then pivoted to medicine, obtaining an MD from Columbia University and focusing on pharmacology and toxicology in reproductive health during his residencies. Mattison has held several prestigious appointments, including Dean of the University of Pittsburgh's Graduate School of Public Health and Chief Medical Officer at Risk Sciences International. Throughout his career, he obtained medical licenses in six U.S. states and served in the U.S. Public Health Service, retiring with the rank of Captain. Most recently, he became a Distinguished Professor of Epidemiology at the University of South Carolina.
Read More Cemil ‘Jim’ Alyanak
Cemil ‘Jim’ Alyanak joined Risk Sciences International (RSI) in 2018 and serves as Vice-President, Communications and Strategic Initiatives. In this senior leadership role, he leads RSI’s risk communications practice, drives cross-cutting initiatives, advances strategic in-house projects, and expands the company’s international presence and partnerships.
As creator of CRAFT (the Collective Risk Action Framework and Toolkit) and the Global Risk Census, Alyanak has helped establish RSI as a global innovator in stakeholder- and constituency-centered risk engagement. His expertise in perception analysis and communications strategy enables RSI to address complex challenges across public health, regulatory affairs, environmental risk, and humanitarian crisis response. From pandemic-era messaging to multistakeholder workshops and regulator support, his work consistently focuses on aligning message, audience, and outcomes that can be measured.
Recognized for his ability to navigate cross-cultural contexts and indigenous knowledge systems, Alyanak has worked extensively on in-region projects with local and indigenous communities worldwide. This grassroots experience informs his current portfolio, which includes collaboration and consensus-building projects that unite stakeholders and constituencies in addressing both shared and similar risks. He also provides regional, federal, and international policy guidance to companies and governing bodies seeking to design risk-informed policies, instruments, and frameworks.
Drawing on extensive emergency preparedness and disaster response experience, Alyanak now leads RSI’s Disaster and Emergency-related projects, advancing practical, risk-based solutions to complex emergencies and strengthening resilience across sectors.
Read More Nataliya Karyakina
Dr. Nataliya Karyakina brings extensive expertise in toxicology and risk assessment to RSI. With a Ph.D. in Toxicology and experience at the McLaughlin Centre for Population Health Risk Assessment, she specializes in evaluating health risks from exposure to various toxic agents. Her research spans essential and toxic metals, pharmaceuticals, and nanomaterials. She has contributed to projects on chemical classification and labeling, as well as health-based regulatory guidance. Currently, she focuses on the health effects of engineered nanoalumina and diagnostic criteria for occupational manganism.
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