An age-specific biokinetic model for iodine

This paper reviews age-specific biokinetic data for iodine in humans and extends to pre-adult ages the baseline parameter values of the author's previously published model for systemic iodine in adult humans. Compared with the ICRP's current age-specific model for iodine introduced in Publication 56 (1989, pp 45-48), the present model provides a more detailed description of the behaviour of iodine in the human body; predicts moderately higher doses to the thyroid for short-lived isotopes of iodine; predicts similar doses to the thyroid for isotopes with half-time greater than a few hours; and, for most iodine isotopes, predicts substantially higher doses to salivary glands, stomach wall, liver, and kidneys.