Olympic Games 2020: Tokyo 2020: Polluted waters after rainfall

Once again, the athletes of the Summer Olympic Games could be affected by polluted waters.

The prolonged summer rain in Tokyo caused increased bacterial growth in the water facilities of Odaiba Marine Park, where the triathlon and open water swimming competitions are scheduled for 2020.This was announced by the Organising Committee at a meeting with the International Olympic Committee (IOC) on Wednesday.

Several rehearsals from the end of July to the beginning of September showed increased levels of soiling, said OK boss Koji Murofushi, Olympic champion in Athens in 2004 and World Champion in hammer throwing in Daegu in 2011.

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The rainfall in the Japanese capital lasted three weeks and washed in pollutants from the open water.

Murofushi rejected another venue for triathlon and open water swimming.Instead, the water quality is to be brought back into line with international standards by means of underwater screens and improved sewer pipes.

Last year, yachtsmen, windsurfers and open water swimmers, among others, had to face health risks in the polluted waters during the Rio de Janeiro Games.