Is marble very radioactive?

Actually, the harm is not great, so there is no need to take it to heart. Of course, if you want to avoid this harm as much as possible, it is not practical to wear a gas mask, so you have to make the room more ventilated. In the spirit of seeking truth from facts and being highly responsible to the country and the people, China Stone Industry Association made a further investigation and demonstration on the radioactivity of natural marble with the active cooperation of relevant experts, stone enterprises, national authoritative testing departments and the media such as Stone Magazine, and agreed that the supervision of radioactivity of natural marble should be abolished. The reasons are as follows:

1. The average content of radionuclides in different kinds of stones is quite different due to the different geological causes and mineral composition. Marble is sedimentary rock, mainly composed of carbonate, in which the content of radionuclide is low; Dr. Zhang Shaohua, a geological expert, also believes that from the analysis of the geological process of marble formation, the formation of natural marble is not directly related to radioactive substances, so it has no radioactive harm to human body;

2. Judging from the relevant standards currently promulgated and implemented in China, the standard GB6566-21 Radionuclide Limit of Building Materials only contains granite, not marble; In GB/T19766-25 Natural Marble Building Plate and JC/T22-21 Natural Marble Waste, radioactivity is not included in the detection instructions, that is to say, natural marble does not need to be detected with radioactivity index; Judging from the current standards issued by the General Administration of Quality Supervision, Inspection and Quarantine, only SN1327-23 on-site radioactive dose detection and control standard for imported and exported granite has been formulated, but no on-site radioactive dose detection and control standard for exported marble has been issued.

Therefore, on August 28th, 26, China Stone Industry Association, in the document of China Stone Association [26] No.14, once again suggested that the national regulatory authorities cancel the supervision of natural marble radioactivity, so as to make full use of foreign resources, improve customs clearance efficiency and reduce the unnecessary burden of the state and stone enterprises.

it is necessary for consumers to worry about and prevent the radiation problem of decoration materials, but it should be based on science, rational consumption and scientific consumption.

authoritative experts have made it very clear about the so-called "radiation" of misinformed marble: the formation of natural marble is not directly related to radioactive substances, so it has no radioactive harm to human body!

Let's take the test results of the stone "Jinnianhua" as an example, so that we can have a more correct understanding of the radioactivity of natural marble:

Jinnianhua INDUS GOLD is golden yellow sandstone, produced in Pakistan, and the accumulated rock formed by loess after hundreds of millions of years of accumulation is 26-1363KC/cm? It radiates 93% far infrared rays and negative ions, and has the functions of antibiosis, deodorization and water vein cutting. Because there are many kinds of active enzymes in Jinnianhua, it retains the unique medicinal properties and health effects of loess. There is no chemical component added, such as waxed stone, the surface is very shiny, the construction is convenient, and it retains 1% health efficacy. The natural golden age is a very good stone for warming kang floor. It is mainly used on the wall or floor of warm kang or healthy bed, bath, sauna and other places. Efficacy:

1. radiate far infrared rays: radiate far infrared rays beneficial to human body. (radiate far infrared rays 93%)

2. radiate negative ions: absorb ambient air and radiate negative ions called air vitamin.

3. Antibacterial effect: prevent the inhabitation of mildew and various fungi harmful to human body.

4. detoxification: neutralizing strong alkaline cement.

5. Humidity adjustment: the automatic humidity adjustment force that absorbs moisture when the humidity is high and radiates moisture when it is dry.

6. Absorbability: food odor, smoke smell and other harmful smells can be absorbed quickly.

7. cut off electromagnetic waves: because of a large amount of infrared radiation, cut off harmful electromagnetic waves.

8. energy saving: far infrared rays can heat the object evenly, shortening the heating time and thus saving energy.

To sum up for friends who don't like reading long posts, it's actually very simple, just two points:

First, natural marble has no radioactive harm to human body

Second, the scope of use of natural marble is not restricted, and it can be used in any place

From the table, we know that the internal irradiation index of French wood grain is .1, and the external irradiation index is .7; The internal irradiation index of beige travertine is .1, and the external irradiation index is .1. To put it bluntly, it is even lower than the radiation of cement! ! ! ! !

In the second quarter of 26, the Provincial Quality Supervision Bureau conducted provincial-level supervision and spot checks on cement products in Huaibei City, Wuhu City and Chaohu City

4. This supervision and spot check listed the radionuclide limit of cement as an inspection item for the first time, which is in line with the needs of the acceptance project of construction projects and is also a concrete embodiment of implementing the national mandatory safety standards. External radiation index is an external radiation index. People exposed to radiation exceeding the standard limit will have symptoms such as fatigue, decreased immunity, infertility and alopecia, which will damage people's hematopoietic function, nervous system, reproductive system and digestive system and easily induce cancer. The average external irradiation index of 3 groups of samples in this spot check is .3, which is less than 1. stipulated by the national standard, which is gratifying. However, the external exposure index of a company's cement products is .5, which is 67% higher than the average value of 3 groups of external exposure index of .3, which should be paid attention to by the company.

If you read the content of this post carefully, you must have understood that it is not that I am trying to give you a statement, but that those who talk nonsense irresponsibly should produce "more sufficient evidence" to prove the credibility of their nonsense-this is in line with the principle of "whoever advocates and gives evidence" in China's Civil Procedure Law, hehe ~~

"Marble is radioactive and correct. Isn't it?

whether a substance has harmful effects on human body or organisms depends on the level of radioactive radiation dose of the substance, and it is through the detection of the radioactive level of the substance that the relevant institutions come to the conclusion whether it is harmful or not.

Of course, data are always boring, and people have no interest or energy to study those boring data. Then, there is a simpler truth that can make people have a dialectical understanding of the radiation problem of stone: natural granite is the main part of the earth's crust, the original biomass from which life is derived, and the basis for the origin and generation of human beings. The enormous heat in the earth is mainly provided and maintained by the transmutation heat of primary radionuclides and their progeny radionuclides. Therefore, the main contribution of natural radionuclides to life is to provide primitive kinetic energy, and the motion of human internal organs, blood circulation and cell activities all come from natural radionuclides. Therefore, people don't have to worry about stone, a natural substance that has been with us for more than 2 million years. It is far more than mobile phones, televisions and other household appliances. For this, the old ancestors left the best example for us-most people who like to travel are deeply impressed by the ancient towns all over the world. There are still countless long-lived old people living in the old houses built of stones all over the ancient towns. They are accompanied by stones all their lives and absorb the best gifts from nature!