当前位置: X-MOL 学术Environ. Forensics › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A review on soil radionuclide distribution in Iraq analysed using gamma ray spectroscopy
Environmental Forensics ( IF 1.8 ) Pub Date : 2020-08-17
Rasha S. Ahmed

Human being exposed to naturally occurring ionizing radiation throughout their lives as these radionuclides are present in different amounts in our environment. Gamma radiation emitted from uranium (U), thorium (Th), radium (Ra), potassium (K) and cesium (Cs) radionuclides and their decay products represents the essential external source of radiation to human beings. The amount of these radioactive elements differs from one region to another. These radioactive nuclides may enter into the human body through air inhalation or by eating and drinking. When the concentration of these radioactive elements reaches hazardous limits, it may cause cancer like lung, stomach and blood cancers. For purposes of monitoring the health hazards caused by the ionizing radiation, radionuclide activity concentrations are being measured in soil, sand, water, rocks, air etc. In Iraq and different regions around the world pollution of soil is a major concern with respect to its contaminant, existing in the food chain and persistence in the environment. In this work, several data have been reported and reviewed from a number of studies that measure 238U, 226Ra, 232Th, 137Cs and 40K radionuclides activity in the soil of Iraq, specifically in Salahadeen, Bsrah, Erbil, Sulaimanya, Najaf, Nineveh, Kirkuk, Babylon, Thi-Qar, Al Anbar, Al-Muthanna, Karbala and Hilla governorates. In all articles, NaI (Tl) and high-purity germanium (HPGe) detectors are used for radioactivity measurements. From this review, it can be deduced that the average activity concentrations for the measured radionuclides in soil were below worldwide average levels established by UNSCEAR except in Sulaimany, Basrah and Baghdad where elevated levels of 238U, 226Ra and 40K were noticed. Additionally, 137Cs has been recorded in some Iraqi regions.



中文翻译:

γ射线光谱法分析伊拉克土壤放射性核素分布

由于这些放射性核素在我们的环境中以不同的量存在,因此人类一生都暴露于自然发生的电离辐射。铀(U),th(Th),镭(Ra),钾(K)和铯(Cs)放射性核素及其衰变产物发出的伽马辐射代表了对人类辐射的重要外部辐射源。这些放射性元素的量在一个区域与另一个区域之间是不同的。这些放射性核素可能通过吸入空气或通过进食和饮水进入人体。当这些放射性元素的浓度达到危险极限时,可能会导致肺癌,胃癌和血液癌等癌症。为了监控电离辐射对健康的危害,正在测量土壤,沙子,水,岩石,空气等。在伊拉克和世界各地,土壤污染是食品中存在的污染物,食物链中存在的污染和环境持久性的主要问题。在这项工作中,已经从一些衡量伊拉克土壤中238 U,226 Ra,232 Th,137 Cs和40 K放射性核素的活动,特别是在萨拉哈迪恩,布拉斯,埃尔比勒,苏莱曼尼亚,纳杰夫,尼尼微,基尔库克,巴比伦,蒂卡尔,艾尔安巴尔,穆塔纳,卡尔巴拉和希拉省。在所有文章中,NaI(T1)和高纯锗(HPGe)检测器均用于放射性测量。从这次审查中可以推断出,土壤中测得的放射性核素的平均活度浓度低于联合国科学和科学委员会确定的全球平均水平,但在苏莱曼尼,巴士拉和巴格达却发现其238 U,226 Ra和40 K的水平升高。另外137在某些伊拉克地区已经记录了Cs。

更新日期:2020-08-18
down
wechat
bug