Abstract
A set of measurements have been carried out in order to determine the activity-levels in some powdered milks available in Tunisia. The study has shown that the average activity is about 160 +/- 19 and 2.26 +/- 0.5 Bq/kg respectively for K-40 and Cs-137, whereas it is below the detection limit for Ra-226 and Th-232. The mean annual ingestion dose is about 102 and 225 for respectively ae 1 year and 1-2 years old infants. The calculation of the radiological risk show that no significant threat on the infant's health due to consumption of these milks.