Shahsavani Samaneh, Shamsedini Narges, Tabatabaei Hamid Reza, Hoseini Mohammad
1Department of Environmental Health Engineering, School of Health, Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran.
Fars water and Wastewater Company, Shiraz, Iran.
J Environ Health Sci Eng. 2020 Jan 10;17(2):979-987. doi: 10.1007/s40201-019-00413-7. eCollection 2019 Dec.
This study aimed to determine radon concentrations in mines, stone processing factories, residential houses, and public areas, as well as calculating its effective dose in Neyriz, Iran.
A total of 74 alpha Track detectors (CR-39 detector) were installed at the desired locations based on the US-EPA's protocol. After 3 months the detectors were collected and delivered to a Radon Reference Laboratory for analyzing.
Mean ± SD, minimum and maximum radon concentrations in the sampling buildings were 29.93 ± 12.63, 10.33, and 66.76 Bq/m, respectively. The effective annual dose was calculated to be 0.75 mSv/year, which was lower than the recommended value. Significant positive correlations were found between radon concentrations and some studied variables including smoking cigarettes, number of cigarettes smoked, duration of smoking, building's age, number of floors, having cracks, use of colors in the building, use of ceramic for flooring, use of stone for flooring, and gas consumption. The number of cigarettes smoked by the residents was the most important predictor of radon concentrations. Radon concentrations were lower than standard values in all sampling locations.
It is necessary to conduct further studies in the field of regional geology and determine the sources that release radon in these areas to prevent further increases in radon concentration due to the proximity and plurality of mines and factories.
本研究旨在测定伊朗内里斯的矿山、石材加工厂、住宅和公共区域的氡浓度，并计算其有效剂量。
根据美国环境保护局的方案，在所需位置共安装了74个α径迹探测器（CR-39探测器）。3个月后收集探测器并送至氡参考实验室进行分析。
采样建筑物中的氡浓度均值±标准差、最小值和最大值分别为29.93±12.63、10.33和66.76 Bq/m³。计算得出的年有效剂量为0.75 mSv/年，低于推荐值。发现氡浓度与一些研究变量之间存在显著正相关，这些变量包括吸烟、吸烟数量、吸烟时长、建筑物年龄、楼层数、有裂缝、建筑物使用的颜色、地板使用陶瓷、地板使用石材以及燃气消耗。居民吸烟数量是氡浓度的最重要预测因素。所有采样地点的氡浓度均低于标准值。
有必要在区域地质领域开展进一步研究，确定这些地区释放氡的来源，以防止由于矿山和工厂的临近和众多导致氡浓度进一步升高。
