Spatial variation of radioiodine (129I) dissolution from sediment of a brackish lake beside a spent nuclear fuel reprocessing plant in Japan

• Published in: Journal of radioanalytical and nuclear chemistry Vol. 329; no. 3; pp. 1477 - 1489
• Main Authors: Satoh, Yuhi, Imai, Shoko, Ueda, Shinji
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01-09-2021; Springer; Springer Nature B.V
• Subjects: Chemistry; Chemistry and Materials Science; Diagnostic Radiology; Dissolution; Ecosystems; Hadrons; Heavy Ions; Inorganic Chemistry; Iodine 131; Nuclear Chemistry; Nuclear energy; Nuclear facilities; Nuclear fuel reprocessing; Nuclear fuels; Nuclear Physics; Physical Chemistry; Radioactive wastes; Reactor fuel reprocessing; Sediments; Spent nuclear fuels; Spent reactor fuels; Japan; Sediment; Dissolution flux; Chemical fractionation; Iodine-129; I; Brackish lake; Spent nuclear fuel reprocessing plant
• ISSN: 0236-5731; 1588-2780
• DOI: 10.1007/s10967-021-07890-x

The dissolution and chemical forms of sedimentary radioiodine (
129
I) in aquatic sediments were evaluated in Lake Obuchi, which is situated adjacent to a spent nuclear fuel reprocessing plant in Japan. The dissolution flux of
129
I from the sediment to its overlying water in the western part of the lake was negligible as with that reported in our previous study in the center part. The contribution of the soluble fraction of sedimentary
129
I was larger in the western part of the lake than in the center.