What is the effect of granite tiles in the room?
It is understood that China's stone by radioactive level is divided into A, B, C three categories, according to regulations, only Class A can be used for home interior decoration.
For many years engaged in construction and decoration industry, Mr. Chen told reporters that the use of granite in the construction industry in Guangdong more than Liu Cheng, although for the small indoor, but the red, green and other granite color is good, often used for interior decoration.
Experts advise: the house after the best decoration to do the test
After the laying of natural marble, to take a dilution of pollution to reduce pollution. Radon half-life of only 3.2 days, indoor radon concentration in the doors and windows after 20 to 30 minutes can be reduced to the outdoor level.
Therefore, the simplest way is to strengthen the ventilation and placement properties such as Hampshire coconut shell activated carbon such a good adsorption products for radon adsorption. Just renovated rooms are best able to detect. If the test results are not qualified, you can use the radiation coating or the installation of lead-free protective plate to prevent the release of radon from the building materials. If the radioactivity index is too high, you must immediately replace the stone.
Stone radioactive on the human body there are two kinds of harm, one is the stone radionuclide decay release X-ray, causing external exposure to the human body, but the probability of occurrence is very low; the other is the release of radon caused by internal exposure to the human body The Radon is the decay product of radioactive uranium, radium and thorium in the crust, radon is classified as one of 19 carcinogens, mainly induced by lung cancer.
According to the test, different colors of the stone is also different radioactivity. The highest is red and green, white, black is the lowest. Therefore, consumers should carefully choose the red, green or with a large spot of red granite varieties. He said that granite should not be used in large quantities indoors, especially in the bedroom, children's room to use.
Chinese Academy of Sciences Institute of Geochemistry, senior engineer Liu Qiling said that people on benzene, formaldehyde and other indoor pollution has been gradually attached importance to, but the building materials radiation pollution is also inadequate. She pointed out that the biggest hidden danger from the stone. Because the crust contains radioactive material, natural stone is the same.
