论文标题
瑞士陆地辐射的贝叶斯空间建模
Bayesian spatial modelling of terrestrial radiation in Switzerland
论文作者
论文摘要
陆地辐射的地理变化可以在对长剂量暴露的健康作用的流行病学研究中被利用。已应用各种方法来得出该变化的地图。我们旨在为瑞士构建陆地辐射地图。我们使用机载$γ$ - 光谱测量值来对环境剂量速率进行对贝叶斯混合效应模型的环境剂量率进行建模，并使用集成的嵌套拉普拉斯近似（INLA）进行了推理。与瑞士的西部和北部相比，我们预测高山地区和提西诺的环境剂量率更高。我们提供了一张可用于流行病学研究中的暴露评估的地图，作为评估潜在污染的基线图。
The geographic variation of terrestrial radiation can be exploited in epidemiological studies of the health effects of protracted low-dose exposure. Various methods have been applied to derive maps of this variation. We aimed to construct a map of terrestrial radiation for Switzerland. We used airborne $γ$-spectrometry measurements to model the ambient dose rates from terrestrial radiation through a Bayesian mixed-effects model and conducted inference using Integrated Nested Laplace Approximation (INLA). We predicted higher levels of ambient dose rates in the alpine regions and Ticino compared with the western and northern parts of Switzerland. We provide a map that can be used for exposure assessment in epidemiological studies and as a baseline map for assessing potential contamination.
