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About

Daniel Krewski is a towering figure in risk assessment and toxicology, best known for his pivotal role in reshaping how chemical safety is evaluated. His core research spans environmental health, biostatistics, and regulatory science, with a focus on developing quantitative frameworks for human health risk assessment. Krewski’s most transformative contribution is his leadership in the paradigm shift toward 21st-century toxicity testing. As a key contributor to the landmark U.S. National Academy of Sciences report *Toxicity Testing in the 21st Century: A Vision and a Strategy* (2010, 1,675 citations), he helped articulate a future where routine testing relies on human cell-based in vitro assays rather than traditional animal models. His follow-up work, “Bringing the Vision to Life” (2008, 326 citations), further advanced this framework by emphasizing mechanistic pathways and high-throughput screening. These efforts have profoundly influenced global regulatory policies, reducing animal use while increasing testing efficiency. With over 500 publications and an h-index exceeding 80, Krewski’s impact is immense. He is also a Fellow of the Royal Society of Canada and has received numerous awards, including the Society for Risk Analysis’s Distinguished Achievement Award. For students and researchers, Krewski’s work exemplifies how visionary science can transform public health protection.