http://www.usatoday.com/story/sports/olympics/rio-2016/2016/07/26/rio-de-janeiro-dirty-water-sewage-guanabara-bay/87525622/
RIO DE JANEIRO – Luiz Goldfeld was excited in 2009 when he heard the Olympics were coming to Rio de Janeiro and the sailing events would take place on Guanabara Bay.
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Seven years later and with the start of the Olympics less than two weeks away, Goldfeld has discovered that, just as (expletive) happened then, (expletive) happens now. Tons of raw sewage are pumped into the bay each day. A giant pipe running from downtown churns human waste into the marina at certain times each day. Rats roam around in the waste. The stench makes uninitiated visitors feel like vomiting or fainting.