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The effects of the 1979 Three Mile Island nuclear accident are widely agreed to be very low by scientists in the relevant fields. The American Nuclear Society concluded that average local radiation exposure was equivalent to a chest X-ray and maximum local exposure equivalent to less than a year's background radiation. [1]
John Gofman used his own, non-peer reviewed low-level radiation health model to predict 333 excess cancer or leukemia deaths from the 1979 Three Mile Island accident. [11] The ongoing TMI epidemiological research has been accompanied by a discussion of problems in dose estimates due to a lack of accurate data, as well as illness classifications.
Three Mile Island accident near Harrisburg, Pennsylvania (United States), 28 March 1979. [18] A combination of design and operator errors caused a gradual loss of coolant, leading to a partial meltdown. The amounts of radioactive gases released into the atmosphere are still unknown, so injuries and illnesses that have been attributed to this ...
[150] [151] There have been five serious accidents (core damage) in the world since 1970 (one at Three Mile Island in 1979; one at Chernobyl in 1986; and three at Fukushima-Daiichi in 2011), corresponding to the beginning of the operation of generation II reactors. This leads to on average one serious accident happening every eight years worldwide.
The Unit 1 reactor on Three Mile Island, which closed in 2019, is adjacent to the Unit 2 reactor that experienced a major nuclear power accident in 1979
Three Mile Island's Unit 2 reactor shut down after an infamous partial meltdown in 1979, but the Unit 1 reactor kept going until 2019. MediaNews Group/Reading Eagle via Getty Images
See photos of Three Mile Island in 1979: Exelon Corp, the U.S. power company that owns the Middletown, Pennsylvania, power plant said it will close by Sept. 30, 2019. Three Mile Island employs ...
The 1979 Three Mile Island accident in Pennsylvania was caused by a series of failures in secondary systems at the reactor, which allowed radioactive steam to escape and resulted in the partial core meltdown of one of two reactors at the site, making it the most significant accident in U.S. history. [8]