Three Mile Island Case Study

Three Mile Island
~Stephen Curry~
~Aka Braden Anderson~
On March 28, 1979, at 4:00 A.M. Eastern time, the worst accident in commercial nuclear power history happened. It was a nice day in Dauphin county, Pennsylvania, and then it all happened. This accident was rated a 5 on a scale that only goes to 7. The scale is called International Nuclear Event Scale. It all started inside the secondary-system where the pilot-operated relief valve was stuck open releasing large amounts of nuclear reactor coolant. This horrific accident caused many scientists to worry about nuclear energy, as well as concerning scientists that it could be a danger to the world, so this caused many safety concerns among activists and the general public which resulted in in new regulations for the nuclear industry, and has been cited as a contributor to the decline of a new reactor construction program that was already underway in the 1970s. Even though this sounds like it should have caused many people to develop cancerous cells, epidemiological studies analyzing the rate of cancer in and around the area since the accident, determined there was a small statistically non-significant increase in the rate and thus no causal connection linking the accident with these cancers has been substantiated. After

Many of them were human impacts. One impact for example was that from the years 1963–1979, the number of reactors under construction globally increased every year except 1971 and 1978. However, following the event, the number of reactors under construction in the U.S. declined every year from 1980–1998. This was of course encouraged by the accident. Many reactors were even cancelled. 57 nuclear reactors were cancelled from 1980-1984. The world still has a lot of nuclear reactors because of this accident though. Even though it was a turning point, it made us more aware of the dangers and then we could build safer and more modified power