Soil and Water Research Department, Nuclear Research Center, Egyptian Atomic Energy Authority, 11787, Cairo, Egypt.
Soil and Water Research Department, Nuclear Research Center, Egyptian Atomic Energy Authority, 11787, Cairo, Egypt.
Appl Radiat Isot. 2023 Jul;197:110833. doi: 10.1016/j.apradiso.2023.110833. Epub 2023 Apr 25.
Estimating any radioactivity released into the environment is critical for public health protection, particularly if the radioactivity can enter the food chain. In the present work, the activity concentration of natural radionuclides in the soil, water, plants, and fruits of four vegetable crops, namely cucumber, sweet pepper, hot pepper, and tomato, growing under greenhouse conditions has been measured using a High Purity Germanium (HPGe) Detector. The measured activity concentrations for Ra, Th, and K in the studied soil samples ranged from 4.7 to 6.8, 3.4 to 6.1, and 63.9 to 112.4 Bq kg, respectively, while in plants, they ranged from Not Detected (ND) to 15.2, ND to 3.4, and 495.1 to 1467.4 Bq kg, respectively. The measured activity concentrations for K in the studied fruit samples ranged from 967.1 to 1459.1 Bq kg, while Ra and Th were not detected. The Transfer Factor (TF) of Ra, Th, and K from soil to plants and fruits has been evaluated, and the results from soil to plants varied from ND to 2.5, ND to 0.8, and 6.0 to 19.2, while the results for K in fruits varied from 8.7 to 18.4, while Ra and Th were not detected.
估算释放到环境中的任何放射性物质对于保护公众健康至关重要，特别是如果放射性物质可以进入食物链。在本工作中，使用高纯锗（HPGe）探测器测量了在温室条件下生长的四种蔬菜作物（黄瓜、甜椒、辣椒和番茄）的土壤、水、植物和水果中的天然放射性核素的活度浓度。研究土壤样品中 Ra、Th 和 K 的测量活度浓度分别为 4.7 至 6.8、3.4 至 6.1 和 63.9 至 112.4 Bq kg，而在植物中，它们的活度浓度分别为未检出（ND）至 15.2、ND 至 3.4 和 495.1 至 1467.4 Bq kg。研究水果样品中 K 的测量活度浓度范围为 967.1 至 1459.1 Bq kg，而 Ra 和 Th 则未检出。评估了 Ra、Th 和 K 从土壤到植物和水果的转移因子（TF），结果表明，从土壤到植物的 TF 分别为 ND 至 2.5、ND 至 0.8 和 6.0 至 19.2，而水果中 K 的 TF 则为 8.7 至 18.4，Ra 和 Th 则未检出。
