随着科学技术的进步 ,人民生活水平的提高 ,近年来建材放射性问题引起世界各国的广泛关注和高度重视。我国也于今年出台了《建筑材料放射性核素限量》新标准。为了更好地维护我们的居住环境 ,确保身体健康 ,有必要了解一些放射性知识。事实上 ,放射现象几乎存在于任何地方。早 With the advancement of science and technology and the improvement of living standards of the people, the radioactive issue of building materials in recent years has drawn wide attention and attention from all countries in the world. Our country also promulgated a new standard of “limited edition of radionuclides for building materials” this year. In order to better maintain our living environment and ensure good health, it is necessary to know some radioactive knowledge. In fact, the radiation phenomenon exists almost everywhere. early