Very few studies have been done on radon in South Africa, even though South Africa holds nearly a tenth of the global uranium deposits. This study aimed to map and estimate the radon risk for South Africa, and to identify potential hotspots. In this study, the uranium content of the different types of rock was determined and uranium concentrations in geological units were then projected. A uranium distribution map of South Africa was then constructed, and indoor radon concentrations were estimated and mapped based on the uranium levels of areas. Towns in areas where indoor radon measurements were conducted compared well with the estimated radon values. The maps predicted high estimated indoor radon concentrations in areas at several geological structures. Towns in these areas that have not been measured were identified. The south-western and north-eastern regions of South Africa pose the highest radon risk according to this study, and extensive radon measurements in the towns of these regions is proposed.

尽管南非拥有全球铀矿床的近十分之一，但对南非ra的研究很少。这项研究旨在绘制和估计南非的don风险，并确定潜在的热点。在这项研究中，确定了不同类型岩石中的铀含量，然后预测了地质单位中的铀浓度。然后绘制了南非的铀分布图，并根据地区的铀水平估算和绘制了室内ra的浓度。在室内进行了measurements测量的地区的城镇与估算的values值进行了很好的比较。这些地图预测了几个地质结构区域内室内estimated的估计高浓度。确定了这些地区中尚未测量的城镇。