The variation rules of Rn concentration in the soil of the groundwork in Chengdu area is discussed from different angles. 本文就成都地区地坪基础的施工中氡浓度的变化规律作一初步探讨。
In this study,indoor radon consistence in some buildings in Beijing was measured with activated carbon box method. 采用活性炭盒法测定北京地区部分居民住宅内的氡浓度。
