According to Albawaba, the city of Mosquera in Colombia was covered with toxic foam that threatens the health of citizens.
Large flakes of foam with an unpleasant odor fly through the streets of the city. Residents tend to go out less often.
The reason for the formation of foam was the pollution of the local Balsillas River – poorly treated or completely untreated sewage got into it.
Surfactants and phosphates, which are often found in household detergents, also cause foaming when mixed with contaminated water.