University of Vienna, Faculty of Physics, Nuclear Physics, Währingerstr. 17, A 1090 Vienna, Austria.
J Environ Radioact. 2010 Oct;101(10):804-8. doi: 10.1016/j.jenvrad.2009.11.008. Epub 2009 Dec 21.
A Radon Potential Map as well as a mean indoor Radon Concentration Map is available from the Austrian National Radon Project (1992-2002). These maps are based on the average Radon Potential/Concentration within every municipality and they sort municipalities into three radon 'risk' classes. This is a convenient way for the administration, but it does not describe the real radon risk distribution within a municipality because of the often inhomogeneous geological situation. Therefore, a combination of indoor radon data with all relevant parameters such as house type, storey and ventilation rates along with geological information should be used to improve the existing radon maps. The method, described here, uses Bayes' theory to combine the Radon Potential derived from indoor radon measurements with information from geology. The existing Radon Potential Map was improved by using available soil gas radon data at certain geological units and extrapolated transfer factors. The modifications of the map are shown and several problems arising with the application of this technique are discussed.
一份氡潜能图以及一份平均室内氡浓度图可从奥地利国家氡计划（1992-2002）获得。这些地图是基于每个直辖市的平均氡潜能/浓度，它们将直辖市分为三个氡“风险”类别。这对行政部门来说是一种方便的方式，但由于地质情况经常不均匀，它并不能描述直辖市内的实际氡风险分布。因此，应该将室内氡数据与所有相关参数（如房屋类型、楼层和通风率）以及地质信息结合起来，以改进现有的氡图。这里描述的方法使用贝叶斯理论将从室内氡测量中得出的氡潜能与地质信息结合起来。通过在某些地质单元使用可用的土壤气体氡数据和外推转移因子，对现有的氡潜能图进行了改进。展示了地图的修改，并讨论了应用该技术时出现的几个问题。
