Olympic venue "Odaiba" water quality problem Because of the heavy rains that caused the drainage of domestic wastewater, August 21 18:03
A life in which the race was suddenly canceled due to the heavy rain that caused a large amount of E. coli to be detected in the Tokyo Olympic and Paralympic Triathlon test tournament. This is thought to be caused by wastewater.
Experts pointed out, “It is necessary to urgently take measures against typhoons and heavy rains, with the athlete's competition environment as the top priority.”
At Odaiba Seaside Park, water quality problems have been pointed out for some time, but at the test tournament on the 17th of this month after the typhoon passed, Escherichia coli was detected in excess of twice the standards set by international competition groups. The triathlon swim was suddenly canceled.
According to the Tokyo Metropolitan Sewerage Bureau, 80% of Tokyo's sewage system is a purification system that combines rainwater and domestic wastewater, but if it exceeds the amount that can be treated, sewage such as domestic wastewater is discharged into the river along with rainwater. It flows into Tokyo Bay.
In the next year's production, the tournament organizing committee has put in place a triple screen to prevent E. coli from flowing into the competition venue, and is proceeding with a study to strengthen measures.
Masayuki Tamaki, a sports culture critic, said, “With the premise that the Tokyo Games are held in the summer and the place is Odaiba, frankly speaking, we can only pray that there is no typhoon or heavy rain. It is necessary to listen to the voices of the players once more and take immediate measures with the competition environment as the top priority.