Abstract

The radioactivity concentration in powdered infant milk consumed in Algeria, mainly imported from different countries, some of which had suffered from the propagation of the radiation effect after explosions of nuclear reactors, was evaluated. Milk samples were analyzed using a conducted NaI(Tl) 2×2 well detector (Canberra) and a γ-ray spectrometer using GENIE 2000 software. Twelve samples from different producers and countries were examined, and the average values of their activity concentrations were 1.19 ± 0.81, 1.45 ± 0.96, 18.07 ± 3.42, and 0.18 ± 0.06 Bq kg^–1 for ²²⁶Ra ²³²Th, ⁴⁰K, and ¹³⁷Cs, respectively. The average total effective total dose due to the annual ingestion of the above four radionuclides from the ingestion of imported milk powder for infants of age under one year was estimated at 153.16 ± 7.66, 48.05 ± 2.40, 15.92 ± 0.80, and 0.030 ± 0.0015 μSv year^–1. For one-year-old infants, the values were 38.69 ± 1.93, 20.27 ± 1.01, 19.29 ± 0.96, and 0.049 ± 0.0024 μSv year^–1. These values are significantly lower than the international authorization value. Thus, these imported brands of powdered milk can be consumed safely and without any restrictions.

中文翻译：

---

进口的阿尔及利亚婴儿奶粉中的放射性核素评估和辐射危害指数

摘要

评价了主要从不同国家进口的阿尔及利亚所消费的婴儿奶粉中的放射性浓度，其中一些国家受到核反应堆爆炸后辐射效应的传播的影响。牛奶样品使用NaI（Tl）2×2井检测仪（堪培拉）和γ射线光谱仪（使用GENIE 2000软件）进行分析。对来自不同生产商和国家的12个样品进行了检查，其²²⁶ Ra ²³² Th，⁴⁰ K和¹³⁷的活动浓度平均值分别为1.19±0.81、1.45±0.96、18.07±3.42和0.18±0.06 Bq kg ^–1。分别为Cs。对于一年以下的婴儿，由于每年摄入的进口奶粉中的上述四种放射性核素引起的平均总有效总剂量估计为153.16±7.66、48.05±2.40、15.92±0.80和0.030±0.0015μSv年^–1。对于一岁的婴儿，值分别为38.69±1.93，20.27±1.01，19.29±0.96和0.049±0.0024微西弗年^-1。这些值大大低于国际授权值。因此，可以安全无限制地食用这些进口品牌的奶粉。