Chernobyl
The Chernobyl accident was a nuclear accident at the Vladimir Ilyich Lenin nuclear power plant (3 km from the city of Pripyat, present-day Ukraine) on Saturday, April 26, 1986. Considered, together with the nuclear accident of Fukushima I in Japan in 2011, as the most serious in the International Nuclear Accident Scale (major accident, level 7), is one of the greatest environmental disasters in history. Basically, it was experimenting with the reactor to check if the energy of the turbines could generate enough electricity for the cooling pumps in case of failure (until the diesel generators started). The amount of uranium dioxide, boron carbide, europium oxide, erbium, extruded zirconium and graphite alloys, 4 radioactive and / or toxic materials, was estimated to be 500 times greater than that released by the atomic bomb dropped on Hiroshima in 1945, directly caused the death of 31 people and forced the government of the Soviet Union to the sudden evacuation of 116,000 people,