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Plutonium in Southern Hemisphere Ocean Waters

Abstract

Plutonium in seawater collected by the BEAGLE2003 cruise was determined using ICP-SF-MS and alpha spectrometry after Fe co-precipitation and radiochemical purification. Levels and distributions of dissolved plutonium activity concentrations in Southern Hemisphere ocean waters are summarized here, including historical data. Pu-239 concentrations in surface water of the central South Pacific (32.5{sup o}S) in 2003 were around 1 mBq/m{sup 3}. The {sup 239}Pu concentrations in the Indian Ocean surface waters (20{sup o}S) were similar to that in the South Pacific, whereas the {sup 239}Pu concentrations in the South Atlantic surface waters (30{sup o}S) were markedly lower than those in the South Pacific and Indian Oceans. The {sup 239}Pu vertical profile pattern was similar to that in the North Pacific subtropical gyre, although {sup 239}Pu concentrations in the deep South Pacific were significantly lower than those in the North Pacific. One of the dominant factors controlling plutonium distributions in the Southern Hemisphere oceans is biogeochemical processes including particle scavenging. (author)
Authors:
Hirose, K.; [1]  Aoyama, M.; [2]  Gastaud, J.; Levy, I.; [3]  Fukasawa, M.; [4]  Kim, C. -S.; [5]  Povinec, P. P.; [6]  Roos, P.; [7]  Sanchez-Cabeza, J. A.; [8]  Yim, S. A. [9] 
  1. Sophia University, Tokyo (Japan)
  2. Meteorological Research Institute, Tsukuba (Japan)
  3. Marine Environment Laboratories, International Atomic Energy Agency (Monaco)
  4. Japan Agency for Marine-Earth Science and Technology Yokosuka (Japan)
  5. Environment Laboratories, International Atomic Energy Agency, Seibersdorf (Austria)
  6. Comenius University, Bratislava (Slovakia)
  7. Riso National Laboratory, Roskilde (Denmark)
  8. Universitat Autonoma de Barcelona, Bellaterra (Spain)
  9. Korea Institute of Nuclear Safety, Daejeon (Korea, Republic of)
Publication Date:
Jul 15, 2013
Product Type:
Conference
Report Number:
IAEA-CN-186/135
Resource Relation:
Conference: International Symposium on Isotopes in Hydrology, Marine Ecosystems and Climate Change Studies, Monaco (Monaco), 27 Mar - 1 Apr 2011; Other Information: 1 figs., 1 tab., 19 refs.; Related Information: In: Isotopes in Hydrology, Marine Ecosystems and Climate Change Studies. Vol. I. Proceedings of an International Symposium| 547 p.
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALPHA SPECTROSCOPY; COPRECIPITATION; DISTRIBUTION; INDIAN OCEAN; IRON; PLUTONIUM 239; PURIFICATION; RADIOCHEMISTRY; SCAVENGING; SEAWATER; SOUTHERN HEMISPHERE; SURFACES
OSTI ID:
22122103
Research Organizations:
International Atomic Energy Agency, Department of Nuclear Sciences and Applications, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Contract Number:
Grant KAKENHI 18310017
Other Identifying Numbers:
Other: ISSN 0074-1884; ISBN 978-92-0-135610-9; TRN: XA13R0860078214
Availability:
Also available on-line: http://www-pub.iaea.org/MTCD/publications/PDF/Pub1580_vol1_web.pdf; Enquiries should be addressed to IAEA, Marketing and Sales Unit, Publishing Section, E-mail: sales.publications@iaea.org; Web site: http://www.iaea.org/books
Submitting Site:
INIS
Size:
page(s) 493-500
Announcement Date:
Aug 27, 2013

Citation Formats

Hirose, K., Aoyama, M., Gastaud, J., Levy, I., Fukasawa, M., Kim, C. -S., Povinec, P. P., Roos, P., Sanchez-Cabeza, J. A., and Yim, S. A. Plutonium in Southern Hemisphere Ocean Waters. IAEA: N. p., 2013. Web.
Hirose, K., Aoyama, M., Gastaud, J., Levy, I., Fukasawa, M., Kim, C. -S., Povinec, P. P., Roos, P., Sanchez-Cabeza, J. A., & Yim, S. A. Plutonium in Southern Hemisphere Ocean Waters. IAEA.
Hirose, K., Aoyama, M., Gastaud, J., Levy, I., Fukasawa, M., Kim, C. -S., Povinec, P. P., Roos, P., Sanchez-Cabeza, J. A., and Yim, S. A. 2013. "Plutonium in Southern Hemisphere Ocean Waters." IAEA.
@misc{etde_22122103,
title = {Plutonium in Southern Hemisphere Ocean Waters}
author = {Hirose, K., Aoyama, M., Gastaud, J., Levy, I., Fukasawa, M., Kim, C. -S., Povinec, P. P., Roos, P., Sanchez-Cabeza, J. A., and Yim, S. A.}
abstractNote = {Plutonium in seawater collected by the BEAGLE2003 cruise was determined using ICP-SF-MS and alpha spectrometry after Fe co-precipitation and radiochemical purification. Levels and distributions of dissolved plutonium activity concentrations in Southern Hemisphere ocean waters are summarized here, including historical data. Pu-239 concentrations in surface water of the central South Pacific (32.5{sup o}S) in 2003 were around 1 mBq/m{sup 3}. The {sup 239}Pu concentrations in the Indian Ocean surface waters (20{sup o}S) were similar to that in the South Pacific, whereas the {sup 239}Pu concentrations in the South Atlantic surface waters (30{sup o}S) were markedly lower than those in the South Pacific and Indian Oceans. The {sup 239}Pu vertical profile pattern was similar to that in the North Pacific subtropical gyre, although {sup 239}Pu concentrations in the deep South Pacific were significantly lower than those in the North Pacific. One of the dominant factors controlling plutonium distributions in the Southern Hemisphere oceans is biogeochemical processes including particle scavenging. (author)}
place = {IAEA}
year = {2013}
month = {Jul}
}