Isaac Armstrong is a Ph.D. candidate in Biology at Queen’s University, specializing in paleolimnology. His research focuses on the ecological impacts of historical mercury and heavy metal contamination in the Cornwall waterfront area of the St. Lawrence River. Using subfossil chironomid assemblages, he examines long-term ecological changes caused by industrial pollution. His work supports environmental management and remediation efforts, and he has presented at seminars and published in the Journal of Great Lakes Research.