"Horia Hulubei" National Institute for Physics and Nuclear Engineering - IFIN HH, 30 Reactorului Str., P.O. Box MG-6, 077125, Bucharest-Magurele, Romania.
Department of Analytical Chemistry and Environmental Engineering, University Polytechnic, Bucharest, 6 Polizu, Str. No. 1-7, 011061, Bucharest, Romania.
Environ Geochem Health. 2020 Feb;42(2):513-529. doi: 10.1007/s10653-019-00382-8. Epub 2019 Jul 30.
The work presents the historical evolution, objectives, goals, concepts, chemical and radiometric methods, results and conclusions for salt waters and natural peloids used in pelotherapy. This study assesses chemical composition, natural radioactivity concentrations and the radiological hazard in peloid and salt water samples, from ten places in the Techirghiol Lake from Romania. Pelotherapy is a very important procedure, and thus, the materials used for this purpose must be well characterized to guaranty safety use. Concentrations of elements such as Sr, Ba, Mn, Fe, Sb, Zn, Cu, Pb, Ti, Ni, Cr, As have been measured using ICP-OES analytical technique. The natural radionuclides such as U, Ra, Th and K have been determined by gamma-ray spectrometry. The average activity concentrations were of 0.48 ± 0.10 Bq/kg for U, 0.60 ± 0.10 Bq/kg for Ra, 0.30 ± 0.08 Bq/kg for Th and 17.5 ± 1.3 Bq/kg for K for salt water samples. Also, the mean activity concentrations for peloids were: 5.70 ± 1.00 Bq/kg for U, 6.85 ± 1.60 Bq/kg for Th, 15.3 ± 3.7 Bq/kg for Ra and 95.8 ± 5.5 Bq/kg for K. The results from this study contribute to the identification of possible contaminants in the salt water and peloid, and their association with the potential ecological and human health risk. In this context, of using salt water and peloid in a relatively long treatment period, several radiological indices have been calculated, to determine if the radionuclide's content can be also harmful to human health. The assessment indicates that humans are not exposed to concentrations of metal contaminants higher than the international recommended values.
本工作介绍了盐水和天然泥用于泥疗的历史演变、目标、目的、概念、化学和放射性方法、结果和结论。该研究评估了罗马尼亚特基尔吉奥尔湖十个地方的泥和盐水中的化学组成、天然放射性浓度和放射性危害。泥疗是一个非常重要的程序，因此，用于此目的的材料必须经过很好的特性描述，以保证安全使用。使用 ICP-OES 分析技术测量了 Sr、Ba、Mn、Fe、Sb、Zn、Cu、Pb、Ti、Ni、Cr、As 等元素的浓度。天然放射性核素如 U、Ra、Th 和 K 通过伽马能谱法确定。盐水样品中 U 的平均活度浓度为 0.48±0.10 Bq/kg，Ra 为 0.60±0.10 Bq/kg，Th 为 0.30±0.08 Bq/kg，K 为 17.5±1.3 Bq/kg。此外，泥样的平均活度浓度为：U 为 5.70±1.00 Bq/kg，Th 为 6.85±1.60 Bq/kg，Ra 为 15.3±3.7 Bq/kg，K 为 95.8±5.5 Bq/kg。本研究的结果有助于识别盐水中和泥中的可能污染物及其与潜在的生态和人类健康风险的关系。在这种情况下，在相对较长的治疗期间使用盐水和泥，已经计算了几个放射性指标，以确定放射性核素的含量是否也对人体健康有害。评估表明，人体暴露于金属污染物的浓度不高于国际建议值。
