Nuclear labor issues the most dangerous tasks within the industry is intensified by nuclear secrecy. On May 22, 1986, a nuclear fuel reprocessing plant at La Hague in Normandy, sustained a mechanical malfunction. Five workers were exposed to unsafe levels of radiation and hospitalized. On April 12, 1987, the Tricastin Nuclear Power Plant fast breeder reactor coolant leaked contaminating seven workers. In July 2008, approximately 100 workers were exposed to a radiation leak. The Chernobyl nuclear reactor meltdown occurred on April 26, 1986, in the Ukraine, during a test of the Unit 4 reactor systems. The explosion and fire caused by human error
Bahá'í Faith in Ukraine all contact was lost. Though Bahá'ís had managed to enter various countries of the Eastern Bloc through the 1950s, there is no known Bahá'í presence in Ukraine from this period, though the head of the religion at the time, Shoghi Effendi, included Ukraine in a list of places where no Bahá'ís pioneer had been yet in 1952 and again in 1953. There have been several Bahá'í converts from descendants of the Ukrainian diasporas. As early as 1954 Canadian Peter Pihichyn of Ukrainian descent translated Bahá'í literature into Ukrainian and by 1963 a Ukrainian Teaching Committee of the Bahá'í National Spiritual