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The Three Mile Island accident was a partial nuclear meltdown of the Unit 2 reactor (TMI-2) of the Three Mile Island Nuclear Generating Station on the Susquehanna River in Londonderry Township, near Harrisburg, the capital city of Pennsylvania, United States.
Three Mile Island accident, accident in 1979 at the Three Mile Island nuclear power station that was the most serious in the history of the American nuclear power industry. The Three Mile Island power station was named after the island on which it was situated in the Susquehanna River near.
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Construction of the Three Mile Island nuclear plant began in 1968, in Londonderry Township, Pennsylvania, on a small island in the Susquehanna River just south of the state capital in Harrisburg. Construction ended in 1978 when the second of two nuclear reactors at the site came online to produce electricity. A thriller film, called The China Syndr...
In the early morning hours of March 28, 1979, a mechanical or electric failure set off an unlikely series of events that led to a partial meltdown at the Unit 2 reactor. Water pumps that helped to cool the radioactive fuel in the reactor core malfunctioned. Plant staff didn’t realize the reactor was experiencing a loss of coolant and took a series ...
After the Three Mile Island (or TMI) accident, public support for nuclear energy fell from an all-time high of 69 percent in 1977 to 46 percent in 1979. An estimated two million people were exposed to small amounts of radiation as a result of the TMI accident. There are no known health impacts. Several government agencies and independent groups con...
The cleanup effort lasted 14 years and cost an estimated 1 billion dollars. The damaged reactor was permanently closed and entombed in concrete after the accident. Radioactive fuel and water were removed, and workers eventually shipped 15 tons of radioactive waste to a nuclear waste storage facility in Idaho.
The Three Mile Island incident helped to galvanize the anti-nuclear movement in the United States. The anti-nuclear movement emerged as a social movement against the global nuclear arms race in the early 1960s at the height of the Cold War. High profile protests in response to the events at Three Mile Island took place around the country, including...
Three Mile Island Nuclear Generating Station today generates power from its Unit 1 reactor. The Unit 1 reactor is owned and operated by Exelon Corporation. Exelon announced in 2017 that it would close the plant in 2019. Dismantling the remaining reactor could take up to 10 years.
Backgrounder on the Three Mile Island Accident. U.S. NRC. 14-Year Cleanup at Three Mile Island Concludes. The New York Times. A brief history of the Three Mile Island nuclear plant known for 1979 reactor accident. ABC News.
Learn about the 1979 disaster at the Three Mile Island nuclear plant in Pennsylvania, which caused a partial meltdown and released radioactive gasses. Find out how the accident affected public opinion, regulation and the anti-nuclear movement in the U.S.
Mar 28, 2024 · Learn about the causes, consequences, and changes after the 1979 partial meltdown of TMI-2 reactor in Pennsylvania. The accident had no detectable health effects but led to improved nuclear safety regulations and oversight.
Nov 24, 2009 · Learn about the 1979 accident that brought the U.S. nuclear power industry to a crisis. Find out how the plant operators, the governor, the president and the experts handled the situation and its aftermath.
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May 4, 2022 · Learn about the most serious accident in U.S. commercial nuclear power plant history, which occurred at Three Mile Island in 1979. Find out how the accident happened, what effects it had on people and environment, and how it led to enhanced safety and training in the industry.
Learn about the 1979 nuclear accident at Three Mile Island and the sonar survey that revealed the extent of the damage. See the topographic maps and models of the reactor core and the cavernous void where the fuel rods melted.
