Radionuclides from uranium and thorium series were analyzed to evaluate the radiological quality of the released wastewater from a uranium mine under decommissioning process. The results based on Pearson's R² analysis showed that the activity concentration of radionuclides in soluble and particulate fractions were statistically independent. The wastewater poses no radiological impacts to surrounding waters, generating maximum dose rates of 65 µSv·y⁻¹. Cancer risk was analyzed, and the value found is below that suggested to undertake some actions. Among the radionuclides studied, ²¹⁰Pb and ²²⁸Ra were the major contributors to both dose rate and cancer risk.

分析了来自铀和钍系列的放射性核素，以评估退役过程中铀矿排放废水的放射性质量。基于 Pearson 的 R ²分析的结果表明，可溶部分和颗粒部分中放射性核素的活度浓度在统计上是独立的。废水不会对周围水域造成放射性影响，产生的最大剂量率为 65 µSv·y ^-1。分析了癌症风险，发现的值低于建议采取一些行动的值。在研究的放射性核素中，²¹⁰ Pb 和²²⁸ Ra 是造成剂量率和癌症风险的主要因素。