![Location of the Matanza-Riachuelo watershed in Buenos Aires (Argentina) | Download Scientific Diagram Location of the Matanza-Riachuelo watershed in Buenos Aires (Argentina) | Download Scientific Diagram](https://www.researchgate.net/publication/331046476/figure/fig1/AS:962215112896513@1606421368006/Location-of-the-Matanza-Riachuelo-watershed-in-Buenos-Aires-Argentina_Q640.jpg)
Location of the Matanza-Riachuelo watershed in Buenos Aires (Argentina) | Download Scientific Diagram
![People look at the Matanza-Riachuelo river, Argentina's most polluted basin, after it was dyed green during a Greenpeace demonstration on World Water Day in Buenos Aires, March 22, 2010. The demonstration was People look at the Matanza-Riachuelo river, Argentina's most polluted basin, after it was dyed green during a Greenpeace demonstration on World Water Day in Buenos Aires, March 22, 2010. The demonstration was](https://c8.alamy.com/comp/2E7YPGK/people-look-at-the-matanza-riachuelo-river-argentinas-most-polluted-basin-after-it-was-dyed-green-during-a-greenpeace-demonstration-on-world-water-day-in-buenos-aires-march-22-2010-the-demonstration-was-held-to-call-attention-to-the-pollution-in-the-river-and-to-consider-how-water-is-used-the-organizers-said-reutersmarcos-brindicci-argentina-tags-environment-civil-unrest-2E7YPGK.jpg)
People look at the Matanza-Riachuelo river, Argentina's most polluted basin, after it was dyed green during a Greenpeace demonstration on World Water Day in Buenos Aires, March 22, 2010. The demonstration was
![People look at the Matanza-Riachuelo river, Argentina's most polluted basin, after it was dyed green during a Greenpeace demonstration on World Water Day in Buenos Aires, March 22, 2010. The demonstration was People look at the Matanza-Riachuelo river, Argentina's most polluted basin, after it was dyed green during a Greenpeace demonstration on World Water Day in Buenos Aires, March 22, 2010. The demonstration was](https://c8.alamy.com/zooms/6/567cc1e126c54f04b15c212b9b13f63c/2d2h024.jpg)
People look at the Matanza-Riachuelo river, Argentina's most polluted basin, after it was dyed green during a Greenpeace demonstration on World Water Day in Buenos Aires, March 22, 2010. The demonstration was
![Matanza-Riachuelo, Argentina | Polluted Cities: The World's Most Contaminated Urban Wastelands | TIME.com Matanza-Riachuelo, Argentina | Polluted Cities: The World's Most Contaminated Urban Wastelands | TIME.com](https://science.time.com/wp-content/uploads/sites/12/2013/11/riachuelo_river_argentina.jpg?w=720&h=480&crop=1)