广西岩溶城市氡气需重新认识

To be New Understanding of the Cities Karst Radon Gas in Guangxi Province

通过对桂林市岩溶城市的氡气测定,发现桂林市土壤氡气是桂林土壤氡背景值的4～10倍,属局部高背景区;岩洞内氡气是国家建筑屋限量的2～4倍,属中度超标。在对比桂林市、贵阳市地区数据基础上得出岩溶城市局部高氡异常是普遍存在的结论,提出广西岩溶城市氡气需要重新认识。

Guilin Karst through the city＇s determination of radon gas found in Guilin, Guilin, soil radon background value of soil radon of 4 - 10 times, is a local high background area ; caves of radon gas inside the building housing the state limit 2 - 4 times moderate exceeded. In contrast to Guilin, Guiyang City, drawn on the basis of regional data karst Urban Local high radon anomaly is ＇a common conclusion, made in Guangxi karst cities need to re - understanding of radon gas.