Nuclear Physics and Techniques Laboratory, Department of Physics, Faculty of Sciences Semlalia, BP.2390, University of Cadi Ayyad, Marrakech, Morocco.
Health Phys. 2022 Nov 1;123(5):402-410. doi: 10.1097/HP.0000000000001605. Epub 2022 Sep 2.
In Morocco spas are more and more frequented by bathers for massages, body treatments, and aromatherapy and hair services, among others. Alpha-activities due to 222 Rn, 220 Rn and their progeny have been evaluated inside spa room atmospheres by means of a technique based on using two types of solid-state nuclear track detectors. 222 Rn and 220 Rn concentrations ranged between (67 ± 5 and 103 ± 7) Bq m -3 and (5.5 ± 0.4 and 9.8 ± 0.7) Bq m -3 for the studied spa rooms, respectively. The influence of ventilation rate in spa rooms on 222 Rn and 220 Rn concentrations has been studied. Alpha-activities due to the attached and unattached fractions of 214 Po and 218 Po radon progeny have been evaluated in various compartments of the respiratory system of spa working personnel. It has been shown that the majority of 214 Po and 218 Po radon progeny are attached to aerosols inside the considered spa rooms. Alpha-doses to the respiratory tract tissues of spa working personnel due to the energy loss of the emitted alpha-particles were evaluated. It has been shown that alpha-doses to the respiratory system of spa working personnel are influenced by exposure time of workers, mass of respiratory system target tissues, and radon concentration inside the studied spa rooms. The largest value of alpha-dose due to the 214 Po and 218 Po radon progeny from inhalation of air by female workers working 2,080 hours per year in the studied spa rooms was found equal to 5.16 mSv y -1 .
在摩洛哥，水疗中心越来越受到沐浴者的欢迎，他们在这里进行按摩、身体护理、芳香疗法和头发护理等服务。通过一种基于使用两种类型的固体核径迹探测器的技术，评估了水疗室大气中的α活动，该技术归因于 222Rn、220Rn 及其子体。研究的水疗室中，222Rn 和 220Rn 浓度分别为（67±5 和 103±7）Bq m-3和（5.5±0.4 和 9.8±0.7）Bq m-3。研究了水疗室通风率对 222Rn 和 220Rn 浓度的影响。评估了附着和非附着的 214Po 和 218Po 氡子体在水疗工作人员呼吸系统各部分的α活动。结果表明，大部分 214Po 和 218Po 氡子体附着在考虑的水疗室内气溶胶上。评估了水疗工作人员由于发射的α粒子能量损失而对呼吸道组织的α剂量。结果表明，水疗工作人员呼吸系统的α剂量受工人暴露时间、呼吸系统靶组织质量和研究水疗室中氡浓度的影响。在研究的水疗室中，每年工作 2080 小时的女性工作人员吸入空气时，214Po 和 218Po 氡子体产生的最大α剂量值等于 5.16mSv y-1。
