Study of 137Cs, 90Sr, 239,240Pu, 238Pu and 241Am behavior in the Chernobyl soil期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Study of 137Cs, 90Sr, 239,240Pu, 238Pu and 241Am behavior in the Chernobyl soil

Authors:	G. Lujaniene A. Plukis E. Kimtys V. Remeikis D. Jankünaite B.I. Ogorodnikov

Affiliation:	(1) Institute of Physics, A. Gotauto 12, 2600 Vilnius, Lithuania;(2) Kaunas Technological University, K. Donelaiio 73, 3006 Kaunas, Lithuania;(3) Karpov Institute of Physical Chemistry, Obucha 10, Moscow, Russia

Abstract:	The vertical distribution of ¹³⁷Cs, ⁹⁰Sr, ^239,240Pu, ²³⁸Pu and ²⁴¹Am was determined in soil samples collected from the Chernobyl exclusion zone in 1994. The results show very close distribution profiles for all radionuclides, with about 90% of the total activity of each nuclide lying between the surface and the fourth centimeter. Sequential extraction methods were used to determine the association of radionuclides in soil. The data on vertical distribution of radionuclide species were used to calculate their vertical migration parameters.

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