RIO DE JANEIRO, BRAZIL - Contrary to official figures, the Department of Sanitary and Environmental Engineering of the University of Rio de Janeiro (UERJ) estimates that only 35 percent of the sewage produced in Rio de Janeiro is treated. It is customary for the government to mention as much as seventy percent of wastewater treatment.
"There is a dispute because these government data consider the South Zone sanitized. But since the sewage from the South Zone is dumped into the high seas by the Ipanema Emissary, we can't say that there is sewage treatment. When the Emissary was established in . . .