Document Detail


Plutonium isotopes as tracers for ocean processes: a review.
MedLine Citation:
PMID:  19773079     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Since the first nuclear weapons tests in the 1940s, pulsed inputs of plutonium isotopes have served as excellent tracers for understanding sources, pathways, dynamics and the fate of pollutants and particles in the marine environment. Due to the well-defined spatial and temporal inputs of Pu, the long half-lives of (240)Pu and (239)Pu and its unique chemical properties, Pu is a potential tracer for various physical and biogeochemical ocean processes, including circulation, sedimentation and biological productivity, and hence a means of assessing the impacts of global climate change. Due to the source dependency of the Pu isotopic signature, plutonium isotopes are beginning to be exploited as tools for the evaluation and improvement of regional and global ocean models that will enhance understanding of past and future changes in the oceans. This paper addresses the major sources of Pu and the physical and biogeochemical behaviour in the marine environment. Finally, the use of Pu isotopes as tracers for various oceanic processes (e.g. water mass transport, particle export, and sedimentation) is considered.
Authors:
Patric Lindahl; Sang-Han Lee; Paul Worsfold; Miranda Keith-Roach
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review     Date:  2009-08-21
Journal Detail:
Title:  Marine environmental research     Volume:  69     ISSN:  1879-0291     ISO Abbreviation:  Mar. Environ. Res.     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-01-29     Completed Date:  2010-04-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9882895     Medline TA:  Mar Environ Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  73-84     Citation Subset:  IM    
Copyright Information:
Copyright 2009 Elsevier Ltd. All rights reserved.
Affiliation:
Marine Environment Research Department, Korea Ocean Research and Development Institute, Ansan, P.O. Box 29, Seoul 425-600, Republic of Korea. patriclindahl@yahoo.com
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MeSH Terms
Descriptor/Qualifier:
Environmental Monitoring*
Geologic Sediments / chemistry
Oceans and Seas
Plutonium / analysis*
Radioactive Tracers
Radioisotopes / analysis*
Seawater / chemistry*
Water Pollutants, Radioactive / analysis
Chemical
Reg. No./Substance:
0/Radioactive Tracers; 0/Radioisotopes; 0/Water Pollutants, Radioactive; 7440-07-5/Plutonium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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