After formaldehyde has become the fear of home improvement in people's hearts, the health hazards of marble have also become the second largest concern in people's hearts. Originally, everyone thought that stone is the healthiest decoration material, whether it is natural stone or artificial stone. Choice, but a steady stream of negative information has also reached people's ears, and who is right and who is wrong needs to be carefully explored.
Regarding the hazards of marble, you can find a lot of reports about the radon gas produced by marble if you search the Internet casually. Radon is a colorless, odorless and imperceptibly noble gas. Radon and its progeny generated by marble radiation enter the human body with the air, or attach to the tracheal mucosa and lung surface, or dissolve into body fluids and enter cells and tissues, forming radiation in the body. , induce lung cancer, leukemia and respiratory diseases.
According to the World Health Organization, radon is the second most common carcinogen after smoking. Therefore, many people worry that marble radiation will harm our health.
Regarding the radiation hazards of marble widely rumored on the Internet, there is now another voice, "In fact, as long as there is radon in the home, especially the amount of radon generated in old houses is higher than that in new houses." "House. Not marble will only produce radon. So We don’t have to worry about so-called marble hazards. Artificial marble is far less harmful than natural marble.”
The production standards of marble are completely within the safety range of the State Environmental Protection Agency, and everyone can use it with confidence. The radiation of marble is generally below 13μGy/h. In the environmental monitoring data, you will find that the radiation is 20 μGy/h (micro Gy/h). Hazards are not considered below.
As for "Marble tiles have radiation", merchants have different opinions. In order to restore the truth of the incident, Zhu Li, the executive deputy director of the Radiation Protection Office of Tsinghua University in China, a doctor of geochemistry, conducted an on-site inspection of the radiation value of marble radiation with professional equipment. The test results showed that all three product samples sampled caused changes in indoor radiation values. Black marble tiles increase the radiation index from 2105cpm to 2416cpm. Yellow and white tile samples also increased the emissivity index. Is radiation harmful to marble?
Professor Zhu Li's on-site summary: The test samples belong to A-grade building materials and are safe to use! According to reports: At present, China's building material standards strictly stipulate the control standards for radioactivity.
There are three grades A, B, and C. For example, building materials with emission values in the Class A range are not limited in their scope of use and are suitable for use anywhere. Class B building materials are restricted to areas other than bedrooms. Class C building materials are only suitable for outdoor or other use. So will the shade of color affect the radiation of marble? Professor Zhu said that the color of the stone can be used as a reference, so there is no reference to the tiles!
