Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1738404 | Journal of Environmental Radioactivity | 2012 | 5 Pages |
Abstract
⺠We show monthly Th deposition observed at Tsukuba, Japan from 1990 to 2007. ⺠The Th deposition shows a seasonal variation and inter-annual variability. ⺠Th isotope ratios (230Th/232Th) are used to identify its sources. ⺠The long-term trend of Th deposition is related to increasing anthropogenic input.
Related Topics
Physical Sciences and Engineering
Energy
Nuclear Energy and Engineering
Authors
Katsumi Hirose, Yoshikazu Kikawada, Yasuhito Igarashi,