Abstract:
This study evaluates the radiological risk associated with the consumption of infant powdered milk in Albania. Infant powdered milk is the basic foodstuff for their growth and development in many countries around the world. The activity concentration of radionuclides (40K, 226Ra, 232Th and 137Cs) was measured in fourteen types by using the gamma-ray technique. The results indicated that the activity concentration of 40K, 226Ra and 232Th were detected in all selected samples, whereas 137Cs were not detected in most of them. The activity concentration of 40K, 226Ra and 232Th varies from 92.83 ± 4.32 to 400.53 ± 17.00 Bq kg-1, 0.80 ± 0.15 to 4.91 ± 0.28 Bq kg-1 and 0.19 ± 0.02 to 1.89 ± 0.14 Bq kg-1, respectively. The highest value for 137Cs was found to be 0.36 ± 0.03 Bq kg-1. The average values of Annual Effective Dose (AED) due to consumption of powdered milk were found to be 664.54 ± 31.11 μSv y-1 for infants ≤1 year and 138.53 ± 5.40 μSv y-1 for infants 1-2 years. The values of dose in this study were lower than the recommended limit of 1 mSv y-1 set by WHO/FAO and ICRP for all ages. Therefore, brands of powdered milk are safe, so, these can be normally consumed by infants in Albania.
摘要:
这项研究评估了与阿尔巴尼亚婴儿奶粉消费相关的放射学风险。婴儿奶粉是世界上许多国家成长和发展的基本食品。放射性核素的活度浓度(40K,226Ra,232Th和137Cs)是通过使用伽马射线技术在十四种类型中测量的。结果表明,活性浓度为40K,在所有选定的样品中检测到226Ra和232Th,而其中大多数未检测到137Cs。活性浓度为40K,226Ra和232Th的范围分别为92.83±4.32至400.53±17.00Bqkg-1,0.80±0.15至4.91±0.28Bqkg-1和0.19±0.02至1.89±0.14Bqkg-1。发现137Cs的最高值为0.36±0.03Bqkg-1。≤1岁的婴儿因食用奶粉而产生的年有效剂量(AED)的平均值为664.54±31.11μSvy-1,1-2岁的婴儿为138.53±5.40μSvy-1。本研究中的剂量值低于WHO/FAO和ICRP对所有年龄段设定的1mSvy-1的推荐限值。因此,品牌的奶粉是安全的,所以,这些通常可以在阿尔巴尼亚的婴儿食用。