USA HISTORY

Detailed explanation-1: -On March 28th, 1979, equipment failures and a stuck open relief valve prevented the removal of heat from the Three Mile Island Unit 2 reactor’s core–– an essential function that prevents reactor damage.

Detailed explanation-2: -The Three Mile Island Unit 2 reactor, near Middletown, Pa., partially melted down on March 28, 1979. This was the most serious accident in U.S. commercial nuclear power plant operating history, although its small radioactive releases had no detectable health effects on plant workers or the public.

Detailed explanation-3: -Public confidence in nuclear energy, particularly in the USA, declined sharply following the Three Mile Island accident. It was a major cause of the decline in nuclear construction through the 1980s and 1990s.

Detailed explanation-4: -Three Mile Island (March 28, 1979) The most serious nuclear accident in U.S. history took place at the Three Mile Island plant near Harrisburg, Pennsylvania, a brand-new facility lauded for its state-of-the-art design, efficiency and affordability during an era of energy crises.