Genetic defects induced by caesium-137 and strontium-90 have been caused due to this disaster.
During this event, helicopters dumped huge quantities of boron, sand and lead onto a burning building because reacting water with graphite produces carbon monoxide. It created the so-called Red Forest. Although the entire town of Kopachi was evacuated and then burned down to the ground, the city of Slavutych was established after this event. So-called liquidators were brought in to help out with cleaning the aftermath of this event. This event led to the creation of a "zone of alienation" around towns like Prypiat. Genetic defects induced by caesium-137 and strontium-90 have been caused due to this disaster. For 10 points, name this nuclear disaster that occurred in the Ukraine.
During this event, helicopters dumped huge quantities of boron, sand and lead onto a burning building because reacting water with graphite produces carbon monoxide.
Chernobyl Disaster [accept equivalents that mention Chernobyl]