Colloid transport of plutonium in the far-field of the Mayak Production Association, Russia

Alexander P. Novikov, Stepan N. Kalmykov, Satoshi Utsunomiya, Rodney C. Ewing, François Horreard, Alex Merkulov, Sue B. Clark, Vladimir V. Tkachev, Boris F. Myasoedov

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320 Citations (Scopus)

Abstract

Sorption of actinides, particularly plutonium, onto submicrometer-sized colloids increases their mobility, but these plutonium colloids are difficult to detect in the far-field. We identified actinides on colloids in the groundwater from the Mayak Production Association, Urals, Russia; at the source, the plutonium activity is ∼1000 becquerels per liter. Plutonium activities are still 0.16 becquerels per liter at a distance of 3 kilometers, where 70 to 90 mole percent of the plutonium is sorbed onto colloids, confirming that colloids are responsible for the long-distance transport of plutonium. Nano-secondary ion mass spectrometry elemental maps reveal that amorphous iron oxide colloids adsorb Pu(IV) hydroxides or carbonates along with uranium carbonates.

Original languageEnglish
Pages (from-to)638-641
Number of pages4
JournalScience
Volume314
Issue number5799
DOIs
Publication statusPublished - Oct 27 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General

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    Novikov, A. P., Kalmykov, S. N., Utsunomiya, S., Ewing, R. C., Horreard, F., Merkulov, A., Clark, S. B., Tkachev, V. V., & Myasoedov, B. F. (2006). Colloid transport of plutonium in the far-field of the Mayak Production Association, Russia. Science, 314(5799), 638-641. https://doi.org/10.1126/science.1131307