Liquid Nitrogen Leak at Harper Cancer Research Institute, Notre Dame

Summary: A hazardous materials incident occurred at the Harper Cancer Research Institute, located at 1234 North Notre Dame Avenue, Notre Dame, Indiana. Emergency services responded to reports of a leaking liquid nitrogen tank, which caused a vapor cloud to spread through a laboratory room (A202) on the second floor of Harper Hall. Multiple fire and medical units were dispatched, and some were later disregarded as the situation was assessed. Building occupants were identified and accounted for, and the leak was contained without visible hazards. The tank eventually emptied itself, and the area was declared safe with no ongoing risk to the public.