This table is from the final environmental impact statement for the Chalk River Mound (aka the “NSDF”), published in early December 2020
Note that the table includes five isotopes of plutonium.
Note also that Twenty-five out of the 30 radionuclides listed are long-lived, with half-lives ranging from four centuries to more than four billion years. Materials such as these are not supposed to be disposed of in above-ground landfills according to the International Atomic Energy Agency.


[…] month CNL published its final environmental impact statement listing a partial inventory of radionuclides that would go into the gigantic five-to-seven story radioactive mound (aka […]
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[…] up to 80 tonnes of uranium. Twenty-five out of the 30 radionuclides listed in the reference inventory for the mound are long-lived. This suggests the dump would remain dangerously radioactive for […]
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[…] tonnes d’uranium et de thorium. Vingt-cinq des 30 radionucléides répertoriés dans l’inventaire de référence pour le monticule ont une longue durée de vie. Certains déchets dans le dépôt resteraient […]
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[…] and several tonnes of uranium and thorium. Twenty-five of 30 radionuclides listed in the reference inventory for the mound are long-lived. This suggests the dump would remain radioactive for 100,000 […]
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[…] hazardous waste” to be disposed of. The NSDF Environmental Impact Statement only provides a list of 31 radionuclides that would go in the mound without describing in what waste types they are found […]
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[…] ingéré), et jusqu’à 80 tonnes d’uranium. Vingt-cinq des 30 radionucléides cités dans l’inventaire de radionucléides pour le monticule ont une longue durée de vie. Ces renseignements donnent à penser que le […]
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[…] NSDF would leak and disintegrate long before radioactive components like plutonium decayed to a harmless state. The Assembly of First Nations and more […]
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[…] Update April 29, 2022) five isotopes of plutonium are proposed to be included in the inventory of radioactive materials destined for the NSDF if it is approved. Detail here: https://concernedcitizens.net/2020/12/17/cnls-partial-inventory-of-radionuclides-that-would-go-into-t… […]
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[…] show that the giant mound would leak and disintegrate long before radioactive components like plutonium decayed to a harmless […]
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