番禺市建筑材料天然放射性水平调查广东省番禺市卫生防疫站（市桥镇德胜路，５１１４００）岑志坚王维平我市建筑材料工业发展兴旺。目前，生产花岗石料、红砖、水泥等建筑企业已达３００余家。为保障公众及其后代的健康与安全，促进建筑材料工业合理的发展，我们在上级业... Panyu City, natural radioactive levels of building materials survey Panyu City, Guangdong Province Health and Epidemic Prevention Station (Shiqiao Town Desheng Road, 511400) Cen Zhi Jian Wang Weiping building materials industry in our city thriving. At present, the production of granite, red brick, cement and other construction companies have reached more than 300. In order to protect the health and safety of the public and their descendants and promote the rational development of the building material industry, we are in the superior industry ...