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Biokinetic models for rats exposedto repeated inhalation of uranium: implications for the monitoring of nuclear workers

Published online by Cambridge University Press:  07 March 2006

M. Monleau ,
E. Blanchardon ,
M. Claraz ,
F. Paquet  and
V. Chazel
M. Monleau
Affiliation:
IRSN/DRPH/SRBE, Laboratoire de radiotoxicologie expérimentale, BP 166, 26702 Pierrelatte, France.
E. Blanchardon
Affiliation:
IRSN/DRPH/SDI, Laboratoire d’évaluation de la dose interne, BP 17, 92262 Fontenay-aux-Roses, France.
M. Claraz
Affiliation:
IRSN/DRPH/SRBE, Laboratoire de radiotoxicologie expérimentale, BP 166, 26702 Pierrelatte, France.
F. Paquet
Affiliation:
IRSN/DRPH/SRBE, Laboratoire de radiotoxicologie expérimentale, BP 166, 26702 Pierrelatte, France.
V. Chazel
Affiliation:
IRSN/DRPH/SRBE, Laboratoire de radiotoxicologie expérimentale, BP 166, 26702 Pierrelatte, France.
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Abstract

For dose assessment following chronic or accidental inhalation of radioactive aerosols, the dosimetric models of the International Commission on Radiological Protection (ICRP) provide dose coefficients, retention and excretion functions. Unknown date or dates of intake is the major source of uncertainty in dose assessment during routine monitoring of nuclear workers. The two assumptions commonly made in dose assessment from an unknown time pattern of intake have been tested experimentally with a model of repeated inhalation by rats. The hypothetical intake derived from lung measurement was relatively reliable under the two hypotheses. The hypothetical intake derived from excreta measurement depended on the choice of hypothesis and on the real time pattern of intake.

Keywords

uraniumbiokineticschronic exposureinhalationmodel
Type
Other
Information
Radioprotection , Volume 41 , Issue 1 , January 2006 , pp. 85 - 96
Copyright
© EDP Sciences, 2006

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