ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
Latest Magazine Issues
Jul 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
September 2025
Nuclear Technology
August 2025
Fusion Science and Technology
Latest News
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.
C. D. Burnham, R. M. Brown, G. L. Ogram, F. S. Spencer
Fusion Science and Technology | Volume 14 | Number 2 | September 1988 | Pages 1159-1164
Tritium Release Experiment | doi.org/10.13182/FST88-A25295
Articles are hosted by Taylor and Francis Online.
A trace amount (3.54 TBq) of HT was released to the natural environment under controlled conditions at a site at Chalk River Nuclear Laboratories on June 10, 1987. Scientific investigators from six countries participated in the experiment, which was designed to determine the rate of oxidation of HT to HTO in the natural environment, to identify the dominant mechanism responsible for the oxidation, and to intercompare sampling and analytical techniques used by the different participating laboratories. Results confirm previous laboratory studies in controlled exposure chambers and a field study carried out at Chalk River in August, 1986. The results indicate no rapid oxidation of HT in air. The formation of HTO in soils followed by its reemission accounts for the majority of HTO in air during release of HT and is responsible for the persistence of HTO in air and soil for several weeks. Fusion Technol. (1988).