In the present work, different brands of baby formula and cereal consumed in Jordan were analyzed for their radioactivity content. The activity concentrations of 40K varied with the designated age group in formula with the average concentrations being (in Bq/kg): 160.2 ± 33.5, 219.0 ± 35.0 and 265.2 ± 56.3 for the age groups of 0–6 months, 6–12 months and 1–3 years, respectively. 226Ra was not detected in any of the samples, while 232Th was detected in nearly half the samples with concentrations ranging from 0.22 to 0.82 Bq/kg. 137Cs was detected in only two samples with concentrations of 0.94 and 3.15 Bq/kg. The concentrations of 40K and 232Th in cereal were in the ranges of 23–294 and 0.49–1.48 Bq/kg, respectively. The resulting committed dose was assessed and found in the range of 154–613 μSv, with insignificant contribution from 137Cs, which is within the worldwide range but generally higher than the worldwide average of 290 μSv.

中文翻译：

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评估约旦不同年龄组婴儿配方奶粉和婴儿谷物食品中伽马发射物的放射性

在目前的工作中，分析了约旦消费的不同品牌的婴儿配方奶粉和谷物的放射性含量。40K 的活动浓度随公式中指定的年龄组而变化，平均浓度为（单位为 Bq/kg）：0-6 个月、6-12 个月年龄组的平均浓度为：160.2 ± 33.5、219.0 ± 35.0 和 265.2 ± 56.3和 1-3 年，分别。在所有样品中均未检测到 226Ra，而在近一半的样品中检测到 232Th，浓度范围为 0.22 至 0.82 Bq/kg。仅在两个样品中检测到 137Cs，浓度分别为 0.94 和 3.15 Bq/kg。谷物中 40K 和 232Th 的浓度分别在 23-294 和 0.49-1.48 Bq/kg 范围内。由此产生的承诺剂量被评估并发现在 154-613 μSv 的范围内，137Cs 的贡献微不足道，