" Altogether, 50 million curies of radiation were released by the Chernobyl explosion, the equivalent of 500 Hiroshima bombs. All that was required for such catastrophic fallout was the escape of less than 5 percent of the reactor’s nuclear fuel. Originally it had contained more than 250 pounds of enriched uranium—enough to pollute and devastate most of Europe. And if the other three reactors of the Chernobyl power plant had been damaged by the explosion of the first, then hardly any living and breathing organisms would have remained on the planet. "

― Serhii Plokhy , Chernobyl: The History of a Nuclear Catastrophe