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Pu-240/Pu-239 atom ratios in the bottom sediments of the NW Pacific Ocean
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2003 (English)In: Journal of Radioanalytical and Nuclear Chemistry, ISSN 0236-5731, E-ISSN 1588-2780, Vol. 258, no 2, 265-268 p.Article in journal (Refereed) Published
Abstract [en]

Pu239+240 concentrations and Pu-240/Pu-239 atom ratios in bottom sediments of the Yellow Sea, Korea Strait, East Sea (Sea of Japan), Sea of Okhotsk, and Northwest Pacific Ocean were determined. In coastal sediments near the Korean Peninsula, Pu239+240 concentrations varied from 0.02 to 1.72 Bq.kg(-1), and their Pu-240 /Pu-239 atom ratios from 0.15 to 0.24, with an average of 0.20+/-0.03. Pu-240/Pu-239 atom ratios of bottom sediments in the deep NW Pacific Ocean and its marginal seas(East,Okhotsk seas) were in the range of 0.15-0.23. A little elevated Pu-240/Pu-239 atom ratios in the bottom layer sediment may be due to Pu released into the environment during the pre-moratorium period, having high Pu-240 /Pu-239 atom ratios and low Pu-238/Pu239+240 activity ratios.

Place, publisher, year, edition, pages
2003. Vol. 258, no 2, 265-268 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-48501OAI: oai:DiVA.org:liu-48501DiVA: diva2:269397
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-12

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Pettersson, Håkan

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