Sergey Subbotin, Pavel Krivitskiy, Natalya Larionova, Anna Toporova, Assiya Kunduzbayeva, Denis Turchenko, Zhanna Tleukanova, Almira Aidarkhanova
Branch Office 'Institute of Radiation Safety and Ecology' of RSE NNC RK, Kurchatov, Kazakhstan.
Sci Rep. 2025 May 12;15(1):16426. doi: 10.1038/s41598-025-01697-6.
In this study, we present radiometric measurements near the mothballed Grachevskoye uranium mining facility (MUMF) and the settlement of Saumalkol, located in northeast Kazakhstan. A pedestrian gamma spectrometric survey was conducted at locations of elevated gamma radiation. Spots with elevated gross activity values were detected in the northern part of the settlement and on a motor road. The pathways of radionuclides from the Grachevskoye MUMF to the area around the Saumalkol settlement were addressed. The migration ability of radionuclides and the process of radionuclide transport by ambient air did not have significant effects on the progression of the radioecological situation in the village. However, even after the mine was shut down, the concentration of uranium in the potable water intake well in the village increased eightfold (up to 240 µ/L). Radiological hazards were estimated to exceed recommended parameters.
在本研究中，我们展示了位于哈萨克斯坦东北部已封存的格拉乔夫斯科耶铀矿开采设施（MUMF）和绍马尔科尔定居点附近的辐射测量结果。在伽马辐射升高的地点进行了徒步伽马能谱测量。在定居点北部和一条公路上检测到总活度值升高的点。探讨了放射性核素从格拉乔夫斯科耶MUMF到绍马尔科尔定居点周边地区的迁移途径。放射性核素的迁移能力以及放射性核素通过环境空气的传输过程对该村庄放射生态状况的发展没有显著影响。然而，即使在矿井关闭后，该村庄饮用水取水口井中的铀浓度仍增加了八倍（高达240µ/L）。据估计，辐射危害超过了推荐参数。
