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Three Mile Island Accident

Grid Strain and the Energy Crisis Era

At about four in the morning on 28 March 1979 a cooling malfunction caused part of the core of Unit 2 at Three Mile Island, near Harrisburg, Pennsylvania, to melt, the most serious accident in American commercial nuclear power. The radioactive gas released days later was too small to raise doses above background, and no injuries or adverse health effects were recorded. The deeper damage was to confidence: the accident was a major cause of the halt in American nuclear construction through the 1980s and 1990s.

Facts
Milestone Year
1979 1
Milestone Date
1979-03-28 1
Location
Three Mile Island, Pennsylvania, United States 1
Connections

Associated With

Source World Nuclear Association Information Library
Source World Nuclear Association Information Library
In the Other Atlases

Located In

Also in Geography Atlas: where this subject is located.

Sources
1. World Nuclear Association Information Library
World Nuclear Association
  • Information Library, Safety of Plants, Three Mile Island Accident
    The Three Mile Island power station is near Harrisburg, Pennsylvania in the USA.
  • Associated With: Chernobyl Disaster, Information Library, Safety of Plants, Three Mile Island Accident, Summary
    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.
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Three Mile Island accident - Wikipedia
WikipediaIn Group: Grid and Plant Failures, Lead
Quote, In Group: Grid and Plant Failures, Lead
The reactor accident began at 4:00 a.m. on March 28, 1979, and released radioactive gases and radioactive iodine into the environment.
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