Arabic-Web-The Riachuelo river most polluted waterways

For two centuries potent chemicals have streamed from Argentina's industry into the Matanza river -- known as the Riachuelo, or little river -- making it today one of the world's most polluted waterways. Four million people living in the Buenos Aires province depend on the toxic watershed, and must live with the political failure to clean it up. A voiced AFPTV report.