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. Author manuscript; available in PMC: 2017 Nov 22.
Published in final edited form as: Phys Rev C. 2016 Apr 21;93(4):044614. doi: 10.1103/PhysRevC.93.044614

FIG. 7.

FIG. 7

Isotope excess δM = 100%[(MXe /136Xe)sample/ (MXe /136Xe)atm. − 1)] in Xe released from boreholes in Rosvumchorr tunnel, Kola Peninsula [34], and in gas bubbles in groundwater from soil containing highly radioactive transuranic waste at DOE’s Hanford site [35] (solid lines). Fission yields of Xe isotopes from 235U and 238U (normalized to 136Xe) are shown for comparison (dashed lines). In both cases the 136Xe excess is twice as large as the 134Xe excess.