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Deep geologic repository progress—2025 Update
Editor's note: This article has was originally published in November 2023. It has been updated with new information as of June 2025.
Outside my office, there is a display case filled with rock samples from all over the world. It contains a disk of translucent, orange salt from the Waste Isolation Pilot Plant near Carlsbad, N.M.; a core of white-and-bronze gneiss from the site of the future deep geologic repository in Eurajoki, Finland; several angular chunks of fine-grained, gray claystone from the underground research laboratory at Bure, France; and a piece of coarse-grained granite from the underground research tunnel in Daejeon, South Korea.
Robert J. Kurzeja, Charles E. Murphy Jr., Robert W. Taylor
Fusion Science and Technology | Volume 14 | Number 2 | September 1988 | Pages 1111-1114
Tritium Safety | doi.org/10.13182/FST88-A25287
Articles are hosted by Taylor and Francis Online.
An unplanned release of 168,000 Ci of elemental tritium (HT) and 4700 Ci of tritium oxide (HTO) occurred on July 31, 1987 from the Savannah River Plant. The oxide fraction in the exhaust stack was determined to be 2.7%. The air concentrations of HT and HTO were also measured at 43 downwind locations. The oxide fraction varied between 2 and 3% at the plant boundary (12 miles downwind) and between 0.3% and 84% at greater downwind distances (15 to 40 miles). The increased variability of the oxide fraction with downwind distance is attributed to exchange of oxide with surface vegetation and to turbulent transfer between the surface and the boundary layer. These results are relevant to a recent study of HT oxidation based on downwind changes in the HT/HTO ratio (Bardolle, 1981).