# [https://en.wikipedia.org/wiki/Three_Mile_Island_accident_health_effects Three Mile Island], 1979 – The core of [[Three Mile Island]] Unit 2 melted down after an open valve allowed primary cooling water to leave the reactor coolant system in sufficient quantity that the reactor core was uncovered and could not be cooled sufficiently. There were no casualties, or even [[injury|injuries]], following the accident. There was small amount of [[radioactivity]] released, equivalent to a chest x-ray and the maximum dose anyone in the local area received was approximately the amount they would receive naturally in a year. There was a period of mass hysteria over the accident and there was some dispute over the actual release. However, the simple strategy of decreasing time and increasing distance (even moving away from the area) would have fully prevented any effect. | # [https://en.wikipedia.org/wiki/Three_Mile_Island_accident_health_effects Three Mile Island], 1979 – The core of [[Three Mile Island]] Unit 2 melted down after an open valve allowed primary cooling water to leave the reactor coolant system in sufficient quantity that the reactor core was uncovered and could not be cooled sufficiently. There were no casualties, or even [[injury|injuries]], following the accident. There was small amount of [[radioactivity]] released, equivalent to a chest x-ray and the maximum dose anyone in the local area received was approximately the amount they would receive naturally in a year. There was a period of mass hysteria over the accident and there was some dispute over the actual release. However, the simple strategy of decreasing time and increasing distance (even moving away from the area) would have fully prevented any effect. |