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. Author manuscript; available in PMC: 2020 Jun 2.
Published in final edited form as: Appl Geochem. 2020 May;116:10.1016/j.apgeochem.2020.104561. doi: 10.1016/j.apgeochem.2020.104561

Table 2.

Estimated WIPP plutonium inventory at closure (approximately 2033) and decayed to the end of the regulatory period (12,033)

Isotope Half-Life
(y)		 Year 2033 Year 12,033
(grams) (Ci) (grams) (Ci)
238Pu 88 56,735 964,500 0.0 0.0
239Pu 24,000 13,876,508 874,220 10,400,476 655,230
240Pu 6,500 1,387,652 319,160 483,174 111,130
241Pu 14 18,653 1,865,300 0.1 12
242Pu 380,000 40,975 164 41,250 165
Total -- 15,380,523 4,023,344 10,924,900 766,537