Jorgensen, T.J. Forget Fukushima Chernobyl still holds record as worst nuclear accident for public health. April 25, 2016. There are 7 levels on the  IAEA  scale of nuclear accidents. List and define the criteria for each of the 7 levels of the scale, and provide one historical example of an accident for each level. Give the name, location, and date of each accident, as well as a brief description of what caused the accident. For each of the 7 accidents you described, list the radioisotopes that were released into the environment and the physical half-lives of those radioisotopes. How important do you think a radioisotope’s physical half-life is to the long term health consequences of environmental contamination by that isotope? Explain your answer. Of all the radioisotopes you listed in Question 2, which one would concern you the most, and which one the least. Explain your rationale.

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