An assessment of natural and artifical radionuclide content in powdered milk consumed by infants and toddlers in Singapore

AbstractHigh-resolution gamma spectrometry was employed to evaluate radioactivity levels in powdered milk sold in Singapore. The mean activity concentrations of228Ra,226Ra,40K and137Cs in infants ’ powdered milk were determined to be 0.442 Bq/kg, 0.251 Bq/kg, 197 Bq/kg and 0.080 Bq/kg respectively, while activity levels in powdered milk consumed by toddlers were 0.494 Bq/kg for228Ra, 0.216  Bq/kg for226Ra, 263  Bq/kg for40K and 0.119  Bq/kg for137Cs. Annual total effective doses and radiological risk were also estimated for both age groups. The results indicated that consumption of powdered milk poses insignificant health risk to infants and toddlers.
Source: Journal of Radioanalytical and Nuclear Chemistry - Category: Nuclear Medicine Source Type: research