Dr. John P. Giesy is an internationally recognized environmental scientist whose career has helped shape modern understanding of ecological health, toxicology, and global chemical risk. With decades of leadership in research and academic scholarship, Dr. Giesy has made groundbreaking contributions to the study of contaminants in aquatic and terrestrial ecosystems, particularly the impacts of emerging pollutants such as endocrine disruptors and per- and polyfluoroalkyl substances (PFAS).

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Throughout his distinguished career, Dr. Giesy has held major academic and research appointments across North America and internationally, including long-term leadership roles at Michigan State University and the University of Saskatchewan. His work has informed environmental policy, advanced regulatory science, and provided critical insight into protecting wildlife and human health from chemical exposure.

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Dr. Giesy is among the most highly published and cited scientists in the field of environmental toxicology, with an extensive body of peer-reviewed research spanning thousands of scientific articles, reports, and collaborations worldwide. His achievements have been recognized through numerous prestigious awards, fellowships, and honors, reflecting his lasting influence on environmental science at a global scale.

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Dr. Giesy’s research continues to inspire scientific innovation and serves as a cornerstone for understanding and addressing the environmental challenges of the 21st century.