Temporal distribution of plutonium isotopes in marine sediments off Fukushima after the Fukushima Dai-ichi Nuclear Power Plant accident

Temporal distribution of plutonium isotopes in marine sediments off Fukushima after the Fukushima Dai-ichi Nuclear Power Plant accident

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 239+240 Pu activities and the 240 Pu/ 239 Pu atom rati...

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Veröffentlicht in:Journal of radioanalytical and nuclear chemistry 2015-02, Vol.303 (2), p.1151-1154
Hauptverfasser: Bu, Wenting, Zheng, Jian, Guo, Qiuju, Aono, Tatsuo, Otosaka, Shigeyoshi, Tagami, Keiko, Uchida, Shigeo
Format: Artikel
Sprache:eng
Schlagworte:
Accidental contamination
Accidents
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Fallout
Hadrons
Heavy Ions
Inorganic Chemistry
Marine
Marine sediments
Nuclear accidents
Nuclear Chemistry
Nuclear energy
Nuclear Physics
Nuclear power plants
Physical Chemistry
Plutonium
Sediments
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Zusammenfassung: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 239+240 Pu activities and the 240 Pu/ 239 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.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-014-3437-y