伊朗东南部背景辐射水平评估。
Assessment of background radiation levels in the southeast of Iran.
作者信息
Haghparast Mohammad, Afkhami Ardekani Mahdieh, Navaser Mahmoud, Refahi Soheila, Najafzadeh Milad, Ghaffari Hamed, Masoumbeigi Mahboubeh
机构信息
Department of Medical Physics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Department of Radiology, Faculty of Paramedicine, Hormozgan University of Medical Sciences, Bandar-Abbas, Iran.
出版信息
Med J Islam Repub Iran. 2020 Jun 1;34:56. doi: 10.34171/mjiri.34.56. eCollection 2020.
Measuring background radiation (BR) is highly important from different perspectives, especially from that of human health. This study was conducted to measure BR in the southeast of Iran. BR was measured in Hormozgan and Sistan-Bluchestan provinces using portable Environmental Radiation Meter Type 6- 80 detector. The average value was used to calculate the absorbed dose rate and indoor annual effective dose (AED) from BR. In addition, excess lifetime cancer risk (ELCR) was evaluated. The results showed that the maximum and minimum absorbed dose rates were 71.9 and 34.2 nGy.h-1 in Abomoosa and Minab in Hormozgan province and 90.0 and 47.8 nGy.h-1 in Zahedan and Chabahar in Sistan-Bluchestan province, respectively. Data indicated that these areas had a lower BR level compared with the worldwide level. The ELCR from indoor AED was larger compared with the worldwide average of 0.29 × 10-3. This study provided a reference for designing and developing specific regional surveys associated with the measurement of natural BR in the southeast of Iran.
从不同角度衡量背景辐射（BR）非常重要，尤其是从人类健康的角度。本研究旨在测量伊朗东南部的背景辐射。使用便携式6 - 80型环境辐射探测器在霍尔木兹甘省和锡斯坦-俾路支斯坦省测量背景辐射。利用平均值计算背景辐射的吸收剂量率和室内年有效剂量（AED）。此外，还评估了终生超额癌症风险（ELCR）。结果表明，霍尔木兹甘省阿博穆萨和米纳卜的最大和最小吸收剂量率分别为71.9和34.2纳戈瑞/小时，锡斯坦-俾路支斯坦省扎黑丹和恰巴哈尔的最大和最小吸收剂量率分别为90.0和47.8纳戈瑞/小时。数据表明，与全球水平相比，这些地区的背景辐射水平较低。室内年有效剂量的终生超额癌症风险高于全球平均水平0.29×10⁻³。本研究为设计和开展与伊朗东南部天然背景辐射测量相关的特定区域调查提供了参考。
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