The outdoor gamma radiation dose rates due to natural radioactivity and due to the artificial radionuclides released from the Chernobyl and Fukushima accidents and Algeciras incident were assessed in the Algiers province (capital of Algeria). Furthermore, the dose rates induced by the cosmic rays were analytically calculated in the province concerned. The recorded dose rates due to terrestrial outdoor gamma radiation were found to range from 14.3 ± 0.7 to 114.3 ± 5.7 nGy h −1, those due to cosmic rays ranged from 32.021 ± 0.013 to 34.029 ± 0.367 nGy h −1, while the contribution of the dose rate due to external exposure induced by 137Cs deposits, from major accidents, was estimated to be less than 0.3 nGy h−1. The spatial distributions of terrestrial and cosmic rays dose rates were mapped using QGIS software. The obtained radiological baseline maps can be used as reference information to assess any changes in the radiation exposure levels having an impact on the population health.

中文翻译：

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阿尔及利亚阿尔及尔省户外伽马辐射水平的评估

在阿尔及尔省（阿尔及利亚首都）评估了由于自然放射性和切尔诺贝利事故和福岛事故以及阿尔赫西拉斯事故释放的人造放射性核素造成的室外伽马辐射剂量率。此外，对有关省份的宇宙线辐射剂量率进行了分析计算。由地面室外伽马辐射记录的剂量率范围为 14.3 ± 0.7 至 114.3 ± 5.7 nGy h -1，由宇宙射线引起的剂量率范围为 32.021 ± 0.013 至 34.029 ± 0.367 nGy h -1，而由重大事故引起的 137Cs 沉积物引起的外照射剂量率估计小于 0.3 nGy h-1。使用 QGIS 软件绘制了地球和宇宙射线剂量率的空间分布图。