Rio Olympics 2016: Athletes told to keep their mouth closed: Earlier this week, Olympic athletes expressed their concerns over accommodations in the Olympic Village, where only 12 out of 31 buildings passed safety inspections. Now, they face another hurdle — and the games have not even started yet.

The water that athletes will be swimming in for the summer Olympics in Rio, Brazil is so disgusting that athletes are being told to keep their mouths shut anytime they’re in the water.

Rio Olympics 2016
Rio Olympics 2016

Guanabara Bay, where Rio will host windsurfing and sailing events during the Olympics, is heavily polluted. Reports also claim that the beaches where spectators will observe the games are also dangerous and covered with garbage.

Government and Olympic officials admit efforts to treat sewage and clear garbage from Guanabara Bay and the city’s beaches have been insufficient, prompting warnings from health experts. The bay will host the sailing and windsurfing events at next month’s Olympics.

“Our biggest plague, our biggest environmental problem, is basic sanitation,” Andrea Correa, the top environmental official in the state of Rio, told The New York Times. “The Olympics has woken people up to the problem.”

However some have pointed out the events being held in the bay are actually a long way from where the worst pollution levels are.

London-based Brazilian singer-songwriter Isabel Monteiro tweeted the negativity surrounding pollution was misleading.