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- Title
Long-term behavior of <sup>137</sup>Cs and <sup>3</sup>H activities from TEPCO Fukushima NPP1 accident in the coastal region off Fukushima, Japan.
- Authors
Aoyama, Michio
- Abstract
Decreasing trends of both 137Cs and 3H activity concentrations and an increasing trend of 3H/137Cs activity ratio at Fukushima Dai-ichi Nuclear Power Plant, FNPP1, were observed. Homogeneous distribution of 3H were observed off Fukushima and 3H activity concentrations ranged from 60 to 200 Bq m−3 in 2014. Contribution by relatively 3H rich water from surrounding rivers might be larger source of 3H rather than flux of 3H from FNPP1. Possibilities of observed high and variable 3H/137Cs activity ratio close to FNPP1 site may be evaporation of 3H or sporadic release of 3H rich/poor water from the site.
- Subjects
JAPAN; CESIUM compounds; WATER pollution; RIVERS; FUKUSHIMA Nuclear Accident, Fukushima, Japan, 2011; FUKUSHIMA Daiichi Nuclear Power Plant (Japan)
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2018, Vol 316, Issue 3, p1243
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-018-5815-3