Research on the Assessment Method of Doses to Infants from Ingestion
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Abstract
Public individuals are devided into four age groups of adult, youth, child and infant due to the difference in food consumption, living habit and age-dependent dose coefficients in the assessment of doses to public individuals from effluents of nuclear power plant under operational states. There are great uncertainties and difficuties in the investigation of characteristic and amount of infant food. Two assessment methods are applied to calculate the internal exposure dose to infants from ingestion: one is calculated from the investigated food cunsumption data, the other is calculated by dose coefficients for infants consuming breast-milk after intake by the mother. It can be concluded from the calculation results that doses to infants from ingestion calculated in two methods are close, but doses from different radionuclides vary significantly. Proper assessment mothod should be chosen in application according to the investigated food cunsumption data and infant age.
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