Underground Building Unequilibrium Radon and Its Progeny Analysis and Control

In recent years, people pay more and more attention to the problem of radon in the underground building, in order to understand the unequilibrium radon and its progeny, prevention and control. This paper summarizes the underground indoor radon and its progeny characteristics and the source combining with the characteristics of unequilibrium radon and its progeny, analyses the damage of underground indoor radon pollution to human body health, introduces the dose assessment and protective standards of national indoor radon concentrations of building, and then discusses the corresponding prevention and cure measures of the underground indoor radon pollution. And then it introduces some commonly used unequilibrium radon and its progeny purification device. All the above may make people have a deeper understanding of the radon and its progeny and the relevant control measures. So, it contributes to the solution of related issues of underground building of radon.