Matanza-Riachuelo Basin Authority (ACUMAR)

It Takes More than Two to Tango – or to Clean up Argentina’s Riachuelo River

Immortalised by a famous tango, the “Niebla del riachuelo” (Mist over the Riachuelo river) has begun to dissipate over Argentina’s most polluted river, much of which is lined by factories and slums. But two centuries of neglect and a complex web of political and economic interests are hindering a clean-up plan that requires a broad, concerted effort.

River Restoration Remains Out of Reach

The process of cleaning up the Matanza-Riachuelo river, which runs through the Argentine capital, shows remarkable progress. But the biggest challenge is purifying the water in the basin, which has been damaged by centuries of neglect.