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Why Are The Pools At Rio Turning Green? Officials Have Two Different Answers

Can someone please let us know the real reason?

Cover image via Adam Pretty/Getty Images

On Tuesday, 9 August, the world was alarmed when something rather odd happened to the diving pool at the Rio Olympics. It turned green overnight!

US divers Amy Cozad and Jessica Parratto plunging into the green diving pool.

Image via Michael Dalder/REUTERS

The diving pool was still crystal-clear, Olympic blue just a day earlier.

A day later, another pool's colour changed too. This time, it was the water polo pool.


The Internet came up with various theories, attempting to explain the situation


Many suggested that the lack of chlorine in the pool contributed to the eery transformation from blue to green

Image via Simpsons World

Many people also believed that the wicked green discolouration was mainly due to algal bloom.

Some even suggested that the kale-coloured water was brought on by corrosion of pipes, releasing copper or iron ions into the water.

Meanwhile, others joked that it could have been urine from the athletes.

In the midst of all these speculations, officials have finally stepped in to clear the air — except that they have given differing explanations

British diver Tom Daley tweeted the image above on Tuesday, 9 August, where the water polo pool (left) was still in pristine condition as compared to to the diving pool.

Image via @TomDaley1994/Twitter

A spokesperson from the International Swimming Federation (FINA), the international governing body for aquatics, told The Los Angeles Times that the aquatic centre ran out of some chemicals used in the water treatment process, causing the pool to turn into an unusual colour.

"As a result, the pH level of the water was outside the usual range, causing the discoloration. The FINA Sports Medicine Committee conducted tests on the water quality and concluded that there was no risk to the health and safety of the athletes, and no reason for the competition to be affected," the spokesperson said in a statement yesterday, 10 August.

On the other hand, CNN reported that the Rio 2016 Local Organizing Committee blamed the proliferation of algae caused by the heat and lack of wind in the venue that caused the green hue to be seen in the water.

Earlier, it was reported that the Olympic Games organisers couldn't explain the colour change but insisted that the pool posed no risk to athletes.

Why did the colour of the pools change? Let us know your thoughts in the comment section below!

The Rio Olympics have been surrounded with so many controversies that it seems as if winning a gold medal at the Olympic Games has also lost its significance:

Despite the controversies, this photo reminds us of the true meaning of Olympics:

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