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- Title
Temporal distribution of plutonium isotopes in marine sediments off Fukushima after the Fukushima Dai-ichi Nuclear Power Plant accident.
- Authors
Bu, Wenting; Zheng, Jian; Guo, Qiuju; Aono, Tatsuo; Otosaka, Shigeyoshi; Tagami, Keiko; Uchida, Shigeo
- Abstract
The characterization of Pu isotopes in a sediment core collected in the western North Pacific off Fukushima in January 2013 was determined. We compared the results with that of the marine sediments collected from July 2011 to July 2012. Both the Pu activities and the Pu/Pu atom ratios showed no variation in the marine sediments in the last 2 years since the FDNPP accident. Pu contamination in the marine sediments in the investigated areas still originated from global fallout and the Pacific Proving Ground close-in fallout.
- Subjects
PLUTONIUM isotopes; TEMPORAL distribution (Quantum optics); MARINE sediments; RADIOACTIVE fallout; FUKUSHIMA Nuclear Accident, Fukushima, Japan, 2011
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2015, Vol 303, Issue 2, p1151
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-014-3437-y