Are granite countertops radioactive? How many years does the radiation of granite disappear?
The radiation of granite will disappear in about six months. When the indoor is paved with granite materials, the doors and windows can be opened for ventilation. It only takes about half an hour, and the indoor radon will fall to the level held outside. In addition, after the granite is installed indoors, it needs to be tested. If the radioactive index is too high, the material should be replaced in time.
About the radiation of granite countertops:
1. There are almost no radioactive substances in the material, including soil, air, water and human body itself. According to Universal Stone Technology, it is certain and normal that stones are taken from nature and contain radioactive substances. However, as long as the products that meet the national standards are reasonably used, the impact on human body is minimal.
2. According to the national standard Radionuclide Limits for Building Materials (GB6566-2010) issued in 2011, the radioactive pollution standards for indoor decoration materials are divided into three categories: A, B and C.
The production, marketing and use scope of Class A materials are not limited, and can be widely used in various interior decoration including living rooms;
Class B materials cannot be used for interior decoration of civil buildings (residential buildings, hospitals, schools, etc.).
Class C materials can only be used for exterior decoration of buildings and other outdoor uses.
3. Everyday radiation is everywhere, not only granite and marble radiation, but also many objects have different levels of radiation. For example, the mobile phone we use every day also has radiation, but its radiation effect is very small, and the radiation reaches a certain range value will cause damage, while the granite countertops radiation used in daily decoration is very very small, which can be used safely.
