The men's triathlon at the Paris 2024 Olympics, originally scheduled for Tuesday, has been postponed due to high pollution levels in the River Seine. Water quality tests revealed that the river remains unsafe for swimming, with elevated bacteria levels, including E. coli, posing a risk to athletes. The event has been rescheduled to Wednesday, alongside the women's triathlon, pending improved conditions. Olympic organizers and World Triathlon officials cited concerns over water quality as the primary reason for the delay, following recent heavy rains that exacerbated pollution levels in the river.