Arthur Putt, Research Director, has over 35 years of experience in ecotoxicology and aquatic toxicology. Since joining Smithers in 1988, he has held a variety of scientific and leadership roles, and today provides technical guidance to study directors, mentors staff, and supports clients with study design, data interpretation, and regulatory strategy. He is recognized as a scientific authority in the field, with deep expertise in aquatic invertebrate toxicology, contaminated sediment assessment, and the development of novel test methods.

He earned a B.S. in Botany from the University of Massachusetts, Amherst, and has authored multiple publications and conference presentations in environmental toxicology. An active member of the Society of Environmental Toxicology and Chemistry (SETAC), he served as President of the North Atlantic Chapter and has been an instructor at several SETAC short courses.