Distributions of 210Po and 210Pb radioactivity in the intermediate layer of the northwestern North Pacific

The distributions of 210 Po and 210 Pb in the intermediate layer (400–2000 m) of the northwestern North Pacific were determined to elucidate the export flux of particulate matter. 210 Po generally showed depletion relative to 210 Pb in the intermediate layer, suggesting that 210 Po was scavenged by...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2009-02, Vol.279 (2), p.561-566
Main Authors: Kawakami, H., Yang, Y. -L., Kusakabe, M.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
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Summary:The distributions of 210 Po and 210 Pb in the intermediate layer (400–2000 m) of the northwestern North Pacific were determined to elucidate the export flux of particulate matter. 210 Po generally showed depletion relative to 210 Pb in the intermediate layer, suggesting that 210 Po was scavenged by particles. Because the removal rate constants of 210 Po in the western region were higher than those in the eastern region and this trend coincided with that of the particle fluxes in the surface layer, the export production in the surface layer was assumed to influence the particle flux in the intermediate layer of the northwestern North Pacific.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-008-7324-2