Nordita, KTH Royal Institute of Technology and Stockholm University, Hannes Alfvéns väg 12, 114 21 Stockholm, Sweden.
Radonova Laboratories AB, Rapsgatan 25, 754 50 Uppsala, Sweden.
Sci Total Environ. 2022 Mar 10;811:151406. doi: 10.1016/j.scitotenv.2021.151406. Epub 2021 Nov 6.
Indoor radon concentrations are controlled by both human factors and geological factors. It is important to separate the anthropogenic and geogenic contributions. We show that there is a positive correlation between the radiometric map of uranium in the ground and the measured radon in the household in Sweden. A map of gamma radiation is used to obtain an equivalent uranium concentration (ppm eU) for each postcode area. The aggregated uranium content is compared to the yearly average indoor radon concentration for different types of houses. Interestingly, modern households show reduced radon concentrations even in postcode areas with high average uranium concentrations. This shows that modern construction is effective at reducing the correlation with background uranium concentrations and minimizing the health risk associated with radon exposure. These correlations and predictive housing parameters could assist in monitoring higher risk areas.
室内氡浓度受人为因素和地质因素的共同控制。区分人为因素和地质因素的贡献很重要。我们表明，瑞典的土壤铀放射性测量图与家庭氡测量值之间存在正相关关系。利用伽马辐射图为每个邮政编码区域获得等效铀浓度（ppm eU）。将铀的总含量与不同类型房屋的年平均室内氡浓度进行比较。有趣的是，即使在平均铀浓度较高的邮政编码区域，现代住宅的氡浓度也较低。这表明现代建筑在降低与背景铀浓度的相关性以及最大限度地降低与氡暴露相关的健康风险方面是有效的。这些相关性和预测性住房参数可用于监测高风险区域。
