Evaluation of Natural Radioactivity in Soil Samples Collected from the Khasa River Banks in Kirkuk, Iraq

IF 0.9 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Radiochemistry Pub Date : 2024-05-16 DOI:10.1134/s1066362224020139

A. M. Shaker, A. H. Taqi, A. El-Taher

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Abstract

The natural radioactivity in soil samples collected from the Khasa River, which flows in the Kirkuk city of Iraq, was studied using a high-purity germanium (HPGe) detector and a spectroscopy system. The activity concentrations (Bq kg⁻¹) of ²¹⁴Pb, ²²⁶Ra, ²¹²Pb, ²²⁸Ac, and ⁴⁰K varied from 10.1 ± 0.6 to 27.5 ± 3.2, from 23.4 ± 2.8 to 44.1 ± 6.1, from 13.2 ± 0.7 to 26.4 ± 1.8, from 12.5 ± 0.9 to 28.1 ± 4.3, and from 206.5 ± 12.8 to 332.2 ± 7.2, respectively. The results have been compared to the average worldwide values. The hazard indices have also been calculated. The average of radium equivalent activity (Ra_eq) was 81.2 Bq kg⁻¹; the absorbed gamma dose rate (D) was 42.8 nGy h⁻¹; the annual effective dose rates (AEDE) outdoor and indoor were 0.05 and 0.2 mSv year⁻¹, respectively; the external hazard (H_ex) was 0.2; the internal hazard (H_in) was 0.3; the gamma radiation representative level index (I_γ) was 0.5. Our results for some sites were found to be higher than the worldwide values.

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对从伊拉克基尔库克哈萨河岸采集的土壤样本中天然放射性的评估

摘要使用高纯锗（HPGe）探测器和光谱系统对从流经伊拉克基尔库克市的卡萨河采集的土壤样本中的天然放射性进行了研究。214Pb、226Ra、212Pb、228Ac 和 40K 的放射性浓度（Bq kg-1）分别为 10.1 ± 0.6 至 27.5 ± 3.2、23.4 ± 2.8 至 44.1 ± 6.1、13.2 ± 0.7 至 26.4 ± 1.8、12.5 ± 0.9 至 28.1 ± 4.3 和 206.5 ± 12.8 至 332.2 ± 7.2。这些结果与全球平均值进行了比较。还计算了危害指数。镭当量活度（Raeq）的平均值为 81.2 Bq kg-1；吸收伽马剂量率（D）为 42.8 nGy h-1；室外和室内的年有效剂量率（AEDE）分别为 0.05 和 0.2 mSv year-1；外部危害（Hex）为 0.2；内部危害（Hin）为 0.3；伽马辐射代表水平指数（Iγ）为 0.5。我们发现某些地点的结果高于全球数值。

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来源期刊

Radiochemistry CHEMISTRY, INORGANIC & NUCLEAR-

CiteScore

1.30

自引率

33.30%

发文量

期刊介绍： Radiochemistry is a journal that covers the theoretical and applied aspects of radiochemistry, including basic nuclear physical properties of radionuclides; chemistry of radioactive elements and their compounds; the occurrence and behavior of natural and artificial radionuclides in the environment; nuclear fuel cycle; radiochemical analysis methods and devices; production and isolation of radionuclides, synthesis of labeled compounds, new applications of radioactive tracers; radiochemical aspects of nuclear medicine; radiation chemistry and after-effects of nuclear transformations.