据中国菱镁行业协会山东科研基地报道:自然界中各种物质及各种生物都存在或多或少的放射性物质,这些放射性物质辐射出来的放射线只要不超过国家规定的标准,对人体就不会造成危害。人类可以在这种环境中长期工作和生活,对人体不会形成损害。各类建筑材料的放射性有高有低,过去没有引起人们的重视。随着科学技术的发展和人类遭受危害这一客观现实的出现,这个问题逐渐引起人们的重视并着手研究和寻找应对措施。根据研究和检测证明,利用工业废渣制造的墙体材料、装饰材料中的墙地砖、花岗岩装饰板材、内墙涂料、钛白粉、水泥等都容易含有一定的放射性物质,但对放射性物质的多少,国家都有相应的标准,符合国标规定的可以放心使用,对超标的产品应特别引起注意。生产复合式改性菱镁通风管道的各种原材料, According to China Magnesite Industry Association, Shandong Science and Research Base reported: a variety of materials in nature and all kinds of organisms exist more or less radioactive material, these radioactive material radiation as long as no more than the national standard, the human body will not Cause harm. Humans can work and live in this environment for a long time without any harm to the human body. The radioactivity of various types of building materials is high and low, and no attention has been paid in the past. With the advent of the objective reality of the development of science and technology and the harm to human beings, this issue has gradually attracted people’s attention and started to study and find solutions. According to the research and testing, it is easy to contain certain radioactive materials for the wall materials, decorative wall tiles, granite decorative plates, interior wall paint, titanium dioxide, cement, etc., which are manufactured by using industrial waste residue. However, Countries have the appropriate standards, in line with the provisions of the national standard can be assured of the use of excessive products should pay special attention. Production of composite modified magnesite ventilation of various raw materials,