Tritium poses significant challenges in nuclear energy production due to its radioactive nature and mobility. As a beta emitter, it produces low-energy radiation that can still be harmful to living tissues. Tritium can easily exchange with hydrogen in water, forming compounds like THO and T2O, which can be absorbed by biological systems. This absorption raises concerns about potential cell damage when present in sufficient quantities. The combination of its radioactivity and ability to integrate into biological processes makes tritium a problematic isotope in the nuclear energy sector.