Abstract:
:An international programme of work is currently under way to develop methods for calculating doses to infants from ingestion of radionuclides present in mothers' milk. This paper considers the special case of the alkaline earth elements. Models have been developed for 45Ca, 90Sr and 226Ra and the sensitivity of results to various changes in parameter values is discussed. A complication when calculating doses from intakes of radium is that the International Commission on Radiological Protection has previously recommended that doses from decay products of radium should be calculated using element-specific biokinetic models (so-called independent biokinetics). An extension of this method to the models for breastfeeding is proposed. Preliminary estimates of the doses received by the infant for a number of maternal intake scenarios show that doses to the infant can exceed the corresponding adult dose, such as for 45Ca (ratio = 3.1) while, in other cases such as 90Sr, the infant dose can be a significant fraction of the adult dose.
journal_name
Radiat Prot Dosimetryjournal_title
Radiation protection dosimetryauthors
Smith TJ,Phipps AW,Fell TP,Harrison JDdoi
10.1093/oxfordjournals.rpd.a006239keywords:
subject
Has Abstractpub_date
2003-01-01 00:00:00pages
273-7issue
1-4eissn
0144-8420issn
1742-3406journal_volume
105pub_type
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