Half-lives of self-purification for various isotopes in soils of the Chernobyl Exclusion Zone

M. Bondarkov, Yu Ivanov, D. Bondarkov, S. Gaschak, A. Maksimenko, R. K. Chesser, B. Rodgers, M. Zheltonozhskaya

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

During 2001-2002 we investigated current contamination of soils in several places in the Chornobyl zone. We have measured the content of alpha emitting isotopes Pu, 241Am, 154,155Eu, 90Sr, and 137Cs in layers of soil up to the depth of 30 cm. By including the two mechanisms of migration: convection and diffusion in our model, we were able to estimate the ecological and effective half-lives of self-purification processes for these layers of soil. Effective half-lives vary from 20 to 400 years dependent upon the type of soil and the isotopes.

Original languageEnglish
Pages (from-to)909-911
Number of pages3
JournalRadioprotection
Volume44
Issue number5
DOIs
StatePublished - 2009

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