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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/2154

Title: The distribution of Pb-210 in human bone and its impact on methods for the retrospective estimation of Rn-222 exposure from in vivo measurements
Authors: Johnston, PN
Hult, M
Gasparro, J
Martinez-Canet, MJ
Vasselli, R
McKenzie, RJ
Solomon, SB
Issue Date: 2005
Abstract: It is possible to estimate radon exposure to man retrospectively by the in vivo measurement of the decay product Pb-210, which accumulates in the bones. For in vivo methods, knowledge of the distribution of Pb-210 in the skeleton is needed to determine the optimal site for measurement, the skull or the knee. In this study the activity of Pb-210 in a variety of bone samples from 3 individuals have been measured in vitro using underground gamma-ray spectrometry. The individuals were unlikely to have had elevated intakes of Rn. These measurements give baseline data on the bone massic activity of Pb-210. They show that the massic activity is similar for each of these people and there are similar massic activities of Pb-210 in the skull and the knee of the 2 individuals for which the skull was measured. Additionally for 2 of the individuals trabecular and cortical bone were separated and massic activities were found to be strongly correlated indicating that the Pb-210 is associated with the hydroxyapatite. (C) 2004 Elsevier Ltd. All rights reserved.
Notes: European Commiss, Joint Res Ctr, Inst Reference Mat & Measurements, B-2440 Geel, Belgium. Royal Melbourne Inst Technol, Dept Appl Phys, Melbourne, Vic 3001, Australia. Australian Radiat Protect Nucl Safety Agcy, Yallambie, Vic 3085, Australia. LUC, Dept Histol, Diepenbeek, Belgium.Hult, M, European Commiss, Joint Res Ctr, Inst Reference Mat & Measurements, Retiesweg 111, B-2440 Geel, Belgium.mikael.hult@cec.eu.int
URI: http://hdl.handle.net/1942/2154
DOI: 10.1016/j.jenvrad.2004.09.006
ISI #: 000227410900008
ISSN: 0265-931X
Category: A1
Type: Journal Contribution
Validation: ecoom, 2006
Appears in Collections: Research publications

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