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The city hosts important industries that make use of environmental harmful chemicals, including a petrochemical plant and a paper mill.
According to studies conducted in the 1990s by Greenpeace, the paper plant ( property of Celulosa S.
A.
) is responsible for contaminating the Paraná River with chlorine-derived chemicals and others ( methoxyphenols such as chloro-guaiacol, di-and tri-chloro-phenols, alkylbenzenes, sulfur compounds, long-chain hydrocarbons, and chloroform ).
Similar charges have been made about the petrochemical plant Electroclor, owned by ICI, which manufactures chlorine.

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