Department of Physics, Chemistry and Material Science, Technological Education Institute TEI of Piraeus, Petrou Ralli & Thivon 250, 12244 Aigaleo, Athens, Greece.
Environ Sci Process Impacts. 2013 Jun;15(6):1216-27. doi: 10.1039/c3em00030c.
Radon and progeny ((218)Po, (214)Pb, (214)Bi and (214)Po) are radioactive indoor pollutants recognised for the human radiation burden that they induce. Bathing in thermal spas causes transient concentration peaks of radon and progeny and additional short-term impact in patients and personnel. This paper reports a semi-empirical non-linear first order model for describing radon and progeny variations in treatment rooms of the Ikaria spas. Non-measured physical parameters were estimated from in situ measurements in Ikaria through non-linear numerical solving. Exposure and dose variations were additionally modelled. Attachment rate constants were found to be between 0.44 and 55 h(-1). Deposition rate constants were between 0.28 and 7.3 h(-1) for attached nuclei and 0.42 and 64 h(-1) for unattached nuclei. Unattached progeny peaks were right-shifted compared to those of radon. Modelled effective doses ranged between 0.001 mSv per year and 0.589 mSv per year for patients and between 0.001 mSv per year and 18.9 mSv per year for workers. Apollon spas presented quite high doses. These were the highest reported in Greece and are significant worldwide.
氡及其子体（(218)Po、(214)Pb、(214)Bi 和 (214)Po）是公认的放射性室内污染物，会对人体造成辐射危害。在温泉浴场洗浴会导致氡及其子体的浓度瞬间升高，并对患者和工作人员造成额外的短期影响。本文报告了一个半经验非线性一阶模型，用于描述伊卡里亚温泉浴场治疗室中氡及其子体的变化。通过在伊卡里亚的现场测量，使用非线性数值求解来估算未测量的物理参数。此外，还对暴露和剂量变化进行了建模。附着速率常数在 0.44 和 55 h(-1) 之间。附着核的沉积速率常数在 0.28 和 7.3 h(-1) 之间，非附着核的沉积速率常数在 0.42 和 64 h(-1) 之间。与氡相比，非附着子体的峰值右移。为患者建模的有效剂量范围在每年 0.001 毫希弗至 0.589 毫希弗之间，为工人建模的有效剂量范围在每年 0.001 毫希弗至 18.9 毫希弗之间。阿波罗温泉浴场的剂量相当高。这是在希腊报道的最高剂量，在全球范围内也是显著的。
