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In this May 15, 2014 photo, trash floats on a polluted water channel that flows into the Guanabara Bay in Rio de Janeiro, Brazil. With just over two years to go until the Rio Olympics, nearly 70 percent of the sewage in the metropolitan area of 12 million inhabitants continues to flow untreated, along with thousands of tons of garbage daily, into area rivers, the bay and even Rio's famed beaches like Copacabana and Ipanema.Several Olympic sports federations raised fears that Rio's polluted waters could prove harmful to athletes' health. Exposure to fecal matter can cause Hepatitis A, dysentery, cholera other diseases. (AP Photo/Felipe Dana)

Future site of 2016 Rio Olympics water sports events

Yahoo News

Sailing's governing body may conduct independent water-quality tests in Rio de Janeiro's polluted Guanabara Bay, the sailing venue for the 2016 Olympics and the site of Rio's first test event in 2½ months.Any hope Brazil would be able to clean up the sewage-filled bay soon was quashed in a document obtained by The Associated Press over the weekend. (AP)

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