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<p>Mining-induced radionuclide contamination has become an issue of increasing concern, as it disrupts natural background concentrations and poses potential risks to ecosystems and human health. This study integrates soil data from nine types of mining activities across fifteen countries to systematically assess contamination levels and associated radiological hazards. Results indicate that rare earth elements, phosphate, tin, and uranium mining sites exhibit significantly elevated concentrations of <sup>238</sup>U, <sup>232</sup>Th, <sup>226</sup>Ra, and <sup>40</sup>K, with radiation risks well above the global baseline.To further evaluate anthropogenic influences, activity ratios of <sup>238</sup>U/<sup>226</sup>Ra and <sup>232</sup>Th/<sup>226</sup>Ra were analyzed.</p>

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Elevated radioactivity and associated hazard risks in soils surrounding various mining sites

  • 期刊论文

  • 发表日期：

    2025年10月31日

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  • Heting Chen,
  • Baolu Yang,
  • Fei Tuo,
  • Qiang Zhou,
  • Hongying Wang

摘要

Mining-induced radionuclide contamination has become an issue of increasing concern, as it disrupts natural background concentrations and poses potential risks to ecosystems and human health. This study integrates soil data from nine types of mining activities across fifteen countries to systematically assess contamination levels and associated radiological hazards. Results indicate that rare earth elements, phosphate, tin, and uranium mining sites exhibit significantly elevated concentrations of 238U, 232Th, 226Ra, and 40K, with radiation risks well above the global baseline.To further evaluate anthropogenic influences, activity ratios of 238U/226Ra and 232Th/226Ra were analyzed.