Is natural marble radiant? Black, beige, and other colors are relatively large. Now the stone used for the threshold, window sill, and baseboard sold in the building materials market is marble. Is the marble is the Natural stone.
Regarding the hazards of marble, as long as you search on the Internet, you will find a lot of reports that the marble will produce suffocation. Helium is an inert gas that is colorless, odorless and undetectable. The sputum and its daughters produced by marble radiation enter the human body with air, or adhere to the mucosa of the trachea and the surface of the lungs, or dissolve into body fluids to enter the cell tissue, forming radiation in the body. , induced lung cancer, leukemia and respiratory diseases.
World Health Organization research shows that sputum is the second most common cancerous substance that causes lung cancer after smoking. Therefore, many people are worried that marble radiation will endanger our health.
In order to verify the authenticity of the "marble radiation harm to health" statement, the CCTV Financial Channel "Is it true?" column group visited the large building materials market in Beijing, and secretly visited the marble tile brand franchise stores including Jane Marble Tiles.
For the "marble tile in the end there is no radiation", the business gives an inconsistent statement. In order to restore the truth of the event, the column group purchased marble tile samples of different colors for inspection in different stores.
In the program, Zhu Li, executive deputy director of the Radiation Protection Office of Tsinghua University, used professional instruments to conduct on-site inspection of the radiation value of marble radiation. The test results showed that the sample of the three products sampled caused a change in the indoor emission value. Black marble tiles increased the radiation index from 2105 cpm to 2416 cpm. Yellow and white tile samples also increased the radio index value. Is that marble radiation harmful?
Professor Zhu Li's conclusion: The tested samples belong to Class A building materials, which means they can be safely used! According to the introduction: The current national standards for building materials strictly stipulate the control standards for radioactivity.