“The EIS does absolutely nothing to address the very long-term implications of the project. For example, the NSDF is intended to house approximately 1000 tonnes of uranium-238, a primordial radioactive element with a half-life of 4.5 billion years. As time goes by, the disintegration of uranium-238 atoms creates a dozen other radioactive “decay products”, all of them much more radiotoxic than uranium-238 itself. Thus the uranium-238 “family” becomes increasingly more radioactive, not less radioactive, as the centuries tick by.
In the first year alone the radioactivity from uranium-238 in the NSDF will just about triple, due to the inbreeding of thorium-234 and protactinium-234. The total radioactivity of the uranium-238 family will continue to increase until it ends up being more than seven times as radioactive as the original uranium-238. The amount of radon gas generated inside the NSDF will steadily increase, year after year, virtually forever, as will the radium-226 content. In fact the NSDF facility will eventually hold the radioactive equivalent of 500,000 tonnes of Elliot Lake uranium tailings, just due to the uranium-238 family alone. ”
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