Carbon, cesium and iodine isotopes in Japanese cedar 1 leaves from Iwaki, Fukushima

Xu, S., Cook, G. T. , Cresswell, A. J. , Dunbar, E. , Freeman, S. P.H.T. , Hou, X., Kinch, H. , Naysmith, P. , Sanderson, D. W.C. and Zhang, L. (2016) Carbon, cesium and iodine isotopes in Japanese cedar 1 leaves from Iwaki, Fukushima. Journal of Radioanalytical and Nuclear Chemistry, 310(2), pp. 927-934. (doi: 10.1007/s10967-016-4830-5) (PMID:27746518) (PMCID:PMC5042993)

Abstract

Japanese cedar leaves from Iwaki, Fukushima were analyzed for carbon, cesium and iodine isotopic compositions before and after the 2011 nuclear accident. The Δ14C values reflect ambient atmospheric 14C concentrations during the year the leaves were sampled/defoliated, and also previous year(s). The elevated 129I and 134,137Cs concentrations are attributed to direct exposure to the radioactive fallout for the pre-fallout-expended leaves and to internal translocation from older parts of the tree for post-fallout-expended leaves. 134Cs/137Cs and 129I/137Cs activity ratios suggest insignificant isotopic and elemental fractionation during translocation. However, fractionation between radioiodine and radiocesium is significant during transportation from the source.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Cook, Professor Gordon and Naysmith, Mr Phillip and Cresswell, Dr Alan and Dunbar, Dr Elaine and Sanderson, Professor David and Xu, Dr Sheng and Freeman, Professor Stewart and Kinch, Ms Helen
• Authors: Xu, S., Cook, G. T., Cresswell, A. J., Dunbar, E., Freeman, S. P.H.T., Hou, X., Kinch, H., Naysmith, P., Sanderson, D. W.C., and Zhang, L.
• College/School: College of Science and Engineering > Scottish Universities Environmental Research Centre
• Journal Name: Journal of Radioanalytical and Nuclear Chemistry
• Publisher: Springer-Verlag
• ISSN: 0236-5731
• ISSN (Online): 1588-2780
• Published Online: 21 April 2016
• Copyright Holders: Copyright © 2016 The Authors
• First Published: First published in Journal of Radioanalytical and Nuclear Chemistry 310(2): 927-934
• Publisher Policy: Reproduced under a Creative Commons License