Oil and oil products belong to the naturally occurring radioactive materials-ΝΟRΜs. In the present study, the radiological status around an oil shale power plant, based on natural radionuclides ²³⁸U, ²²⁶Ra, ²³²Th and ⁴⁰K, is discussed, presenting their spatial and temporal variation in sand and sediment samples collected in the Kavala Gulf (Greece). The measurements were performed by γ-ray spectrometry during two seasons in 2019 and 2020 and the values were compared to that of a reference site and literature data. Moreover, radiation risks were estimated by determination, and the results showed that the radiation hazard due to oil-NORMs was moderate.

石油和石油产品属于天然存在的放射性物质-ΝΟRM。^{在本研究中，讨论了基于天然放射性核素238} U、²²⁶ Ra、²³² Th 和⁴⁰ K的油页岩发电厂周围的放射性状态，展示了它们在卡瓦拉湾收集的沙子和沉积物样品中的时空变化（希腊）。测量是在2019年和2020年两个季节通过γ射线光谱法进行的，并与参考站点和文献数据的值进行了比较。此外，通过测定对辐射风险进行了评估，结果表明，石油-NORMs引起的辐射危害为中等。