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

研究成果: Contribution to journalArticle査読

322 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)638-641
ページ数4
ジャーナルScience
314
5799
DOI
出版ステータス出版済み - 10 27 2006
外部発表はい

All Science Journal Classification (ASJC) codes

  • General

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