Buenos Aires

Environment

The Riachuelo River is the most visible example of Buenos Aires' environmental problems. The river is littered with rusted ships, many of them barely floating on water that is heavily saturated with oil. The sediments are even a worse problem, with untold concentrations of heavy metals and chemical pollutants. The Río de la Plata also is heavily contaminated. Cleaning the waterways remains one of the city's most pressing problems. With hundreds of thousands of cars, buses, and trucks on the roads, the air is heavily polluted.

Tren de la Costa shopping mall and amusement park. ()
The city also has reported serious problems with feral (wild) cats and mice.