Abstract
For the first time, plutonium retention in human upper airways was investigated based on the dosimetric structure of the human respiratory tract proposed by the International Commission on Radiological Protection (ICRP). This paper describes analytical work methodology, case selection criteria, and summarizes findings on soluble (ICRP 68 Type M material) plutonium distribution in the lungs of a former nuclear worker occupationally exposed to plutonium nitrate [239Pu(NO3)4]. Thirty-eight years post-intake, plutonium was found to be uniformly distributed between bronchial (BB), bronchiolar (bb) and alveolar-interstitial (AI) dosimetric compartments as well as between the left and right lungs. 239+240Pu and 238Pu total body activity was estimated to be 2333 ± 23 and 42.1 ± 0.7 Bq, respectively. The results of this work provide key information on the extent of plutonium binding in the upper airways of the human respiratory tract.
Original language | English |
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Pages (from-to) | 45-49 |
Number of pages | 5 |
Journal | Radiation Protection Dosimetry |
Volume | 176 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 1 Oct 2017 |
Bibliographical note
Publisher Copyright:© The Author 2016. Published by Oxford University Press. All rights reserved.