Radiat Prot Dosimetry. 2021 Dec 30;197(3-4):175-182. doi: 10.1093/rpd/ncab178.
Radon-based radiation is a significant issue that can affect resident health as a contributory source of natural radiation from soil construction materials. This study investigates the effect of windcatchers on radon activity concentrations and radon exhalation rate from the soil surface in traditional adobe houses of Yazd, Iran. Radon concentrations were measured by passive detectors in 16 adobe houses. Computational fluid dynamics simulations were performed for different wind speed to calculate ventilation rate. The concentrations of 222Rn were in the ranges of 22 ± 1-117 ± 8 Bq m-3 with an average value of 50 ± 3 Bq m-3. The radon exhalation rates values were in the range of 8.3 ± 0.1 to 47.2 ± 0.5 Bq m-2 h-1. Radon concentration results in only one dwelling site were higher than the level recommended by the World Health Organization. The annual radon inhalation dose was found in seven sites higher than the worldwide average.
氡基辐射是一个重大问题，可能会影响居民健康，因为它是土壤建筑材料中天然辐射的一个促成来源。本研究调查了伊朗亚兹德传统土坯房中风口对土壤表面氡活度浓度和氡逸出率的影响。通过被动探测器在 16 座土坯房中测量了氡浓度。进行了不同风速的计算流体动力学模拟，以计算通风率。222Rn 的浓度范围为 22±1-117±8 Bq m-3，平均值为 50±3 Bq m-3。氡逸出率值的范围为 8.3±0.1 至 47.2±0.5 Bq m-2 h-1。只有一个住宅地点的氡浓度结果高于世界卫生组织建议的水平。在七个地点发现的年氡吸入剂量高于全球平均值。
