Abstract Uranium mining activities in southern Kazakhstan pose ecological risks due to the accumulation of radionuclides and heavy metals in soil and vegetation. This study aimed to assess the radiological and chemical status of ecosystems near uranium mining sites using radiometric analysis, X-ray spectrometry, and bioindication methods. A total of 78 soil and 37 plant samples were collected in 2021–2023 from sites near settlements labeled N, B, and S. Results showed that seven soil samples exceeded the maximum permissible concentration (MPC) for background radiation, with values reaching up to 1.25× MPC. 40K was the most prominent radionuclide in vegetation, averaging 680 Bq/kg, while U-238 was not detected in plant tissues. Heavy metals such as Pb exceeded safety thresholds in plants, with an average of 19.6 mg/kg (3.9× MPC). Zn and P showed variable uptake depending on species and location. Floristic analysis revealed 32 species in experimental sites, including endemic taxa. However, no significant structural anomalies were observed in plant tissues. The study concludes that while large-scale contamination is absent, localized zones of elevated radioactivity and heavy metal accumulation warrant continuous environmental monitoring.
Mining activities, particularly uranium extraction processes, have significant ecological impacts on environmental systems, leading to the dispersion of radionuclides into soil, water, and the atmosphere. This study aims to assess the ecological condition of degraded lands in the Northern Kanimex uranium deposit area a...
M. Farmanova, Shohrux Jo'rayev, I. Tursunova et al.· E3S Web of Conferences· 0 citations
Historical mining districts are long-term sources of environmental contamination, especially where agriculture and grazing occur near mining areas. This study evaluates mercury (Hg) and other potentially toxic elements (PTEs) in soils from Solana de Peñarrubia, within the Almadén mining district (Spain). Thirty-four so...
Nerea García-Donas, S. Lorenzo, P. Higueras et al.· Applied Sciences· 0 citations
The article analyzes the extent of soil contamination caused by military activity and justifies approaches to its remediation. The relevance of the study is in the need for a comprehensive examination of the dynamics of changes in the ecological state of the territory subjected to technogenic load and the search for te...
R. Ostroha, Alice Mija, Sandu Cibotaru et al.· Journal of Engineering Scien...· 0 citations
The increasing industrialization of urban landscapes necessitates comprehensive environmental safety evaluations, especially concerning radiological impacts. This study presents a pre-commercial production radiological assessment of soil and water in Dangote Refinery’s neighbourhood arising from the presence of the nat...
O. Adekoya, Moradeyo A. Adeniji, O. F. Adebayo et al.· Fulafia Journal of Science a...· 0 citations
Background: Heavy metals are natural components of the Earth's crust that cannot be degraded or destroyed, posing risks due to their potential for bioaccumulation. Volcanic eruptions contribute to elevated levels of heavy metals in the crust, as ash and materials contain oxides of various chemical elements.
Objective:...
Aisyiah Aisyiah, Rahfiludin Mohammad Zen, Agushybana Farid et al.· Public Health of Indonesia· 0 citations
