Assessment of intake of a complex radionuclide bearing dust formed at a nuclear power plant

G. N. Stradling*, P. G. Pellow, Alan Hodgson, Timothy Fell, A. Phipps, M. Pearce, M. Taskaeva, I. Penev, T. Guentchev

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The aim of this work was to provide an experimental basis for assessing intakes of an industrial actinide-bearing dust from measurements of 60Co and 137Cs in the body or urine. Whilst these radionuclides comprised 72% and 19% of the radioactivity present, greater than 90% of the committed effective dose will result from the low concentrations of the actinides present, 0.4%. To assess the dose coefficient for the dust and predict the biokinetics of 60Co and 137Cs in workers, absorption parameters for transfer from lungs to blood obtained from an animal study were combined with information on particle deposition and clearance from the ICRP human respiratory tract model and with tissue distribution and excretion data from the most recent systemic models. All other radionuclides were assumed to have Type M absorption characteristics. The dose coefficient for the dust, 1.29 · 10-7 Sv · Bq-1 was estimated to contain 113 kBq 60Co, 29 kBq 137Cs and 0.64 kBq of the actinides. The predicted retention and excretion characteristics of 60Co and 137Cs in workers after acute or chronic exposure to the dust suggested that measurements of these radionuclides in the body or urine could detect intakes equivalent to a few percent of an annual dose limit of 20 mSv · y-1.

Original languageEnglish
Pages (from-to)7-14
Number of pages8
JournalJournal of Radioanalytical and Nuclear Chemistry Articles
Issue number1-2
Publication statusPublished - 1997

Bibliographical note

Funding Information:
This paper is based on work partially supported by the Commission of the European Communities under contract number FI3P-CT920064a. We are indebted to M. I~.LT~NDERa nd E. RANCE for technical assistance and A. BIRCHALLf or advice on using the computer code GIGAFIT. We thank K. WtIrlXHIIs and S. LARDER for his expee~ animal care.


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