top of page

Intervention on public roads. @sach_estudios # 4. December 5, 2020


On a day like today but a little less than a month ago, the brown waters of the Paraná Delta and the Río de la Plata were stained green. An intense green, with bluish tones.

A green toxin, green to cyan.

Cyanobacteria green.

This particular type of microorganisms called cyanobacteria because of their bluish-green color, under certain conditions grow and grow until they form these green clusters known as blooms. Originated by natural causes and intensified by pollution, this phenomenon poses risks to the health of people and animals. They produce highly harmful toxins.

They appear due to the increased presence of nutrients such as nitrogen and phosphorus in water bodies, high temperatures, days without wind or waves, and sufficient sunlight, as the most important factors. This process called eutrophication is natural although it is currently accelerated by anthropogenic and climatic factors.

Human activities such as the intensification of the use of fertilizers and pesticides in agriculture, the growth of urban populations with the consequent increase in the volume of household and industrial effluents, loaded with nitrogen and phosphorus, and climate change, are accelerating these processes. all over the world.

A comprehensive look at the environment is urgent that allows us to see on which pillars this development model stands.

More information:



Mas información:



bottom of page