Journal of Radioanalytical and Nuclear Chemistry
Volume 282, Number 2, 439-442, DOI: 10.1007/s10967-009-0143-2

Plutonium velocity in Zea mays (corn) and implications for plant uptake of Pu in the root zone

S. W. Thompson, F. J. Molz, R. A. Fjeld and D. I. Kaplan

From the issue entitled "PROCEEDINGS OF THE EIGHTH INTERNATIONAL CONFERENCE ON METHODS AND APPLICATIONS OF RADIOANALYTICAL CHEMISTRY (MARC VIII) Kailua-Kona, Hawaii, 5-10 April 2009 – PART 2"

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Abstract

A transport velocity of Pu complexed with the siderophore DFOB has been measured in corn to be at least 174 cm/h. Based on a calculated plant water velocity, a Pu retardation factor of 1–10 was estimated. Dominant Pu species retardation in soil is typically several orders of magnitude higher than this, implying that plants can be a vector for exceptionally rapid upward Pu mobility.

Keywords  Plutonium - Pu - DFOB - Siderophore - Transport in plants - Retardation - Mobility

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