In recent years, with the participation of some artificial wall coverings and materials in the market of natural stone products, a statement that “natural stone radioactive harms human health†is not lost, and is widely circulated in the society. Although this is nothing but the malicious speculation of uninterested competition by some interest groups and the misinformation of irresponsible media, in today's society where health and environmental protection is concerned, this horrendous “say†is enough to make people who are unclear “talk†when choosing decoration materials. The stone color changes, and it is passed down. Therefore, the natural stone that was originally natural and green and environmentally friendly has long suffered from the so-called "radioactive".
As we all know, natural stone is the main component of the earth's crust, the original biomass derived from life, and the basis of human origin and survival. From the stone tools used by ancient humans, the caves that have been sheltered, to the numerous magnificent buildings that carry human civilization in the ancient civilizations of the world, all of them have made great achievements in natural stone. In fact, as early as in the 1970s, China organized the “High Background Radiation Research Group†by organizing relevant scientific research personnel, and conducted environmental radiation metrology and survey on the health of residents in an abnormal natural material radiation area in Yangjiang County, Guangdong Province. the study. As a result, the annual exposure of residents in the area was 3.5 times that of the control area. According to the survey on the health status of residents over 40 years old in the high background area, the average mortality rate of the local residents is generally lower than that of the control area. People living in the high background area with the radiation amount of 3.5 times of the control area have no harm to the body. It is good for health. Modern science has proven that natural radionuclides are ubiquitous on the planet on which humans depend. Natural stone has always existed in the environment of human existence, and there is no difference from the soil, but it is not weathered and embarrassed. People refer to foods, fruits and vegetables that are not added with chemical fertilizers and pesticides in the soil as “green foodâ€, while natural stones are equivalent to soils that are not weathered, so the stone is of course “greenâ€.
In fact, the main raw materials required for the production of building materials such as cement, ceramics, bricks, glass and porcelain tiles for burning wall tiles are from natural stone, but the kiln process is more energy-consuming than natural stone products. It is understood that the National Stone Material Inspection Center provides a reliable scientific basis for the health and environmental protection of natural stone, and collects the radioactive inspection data of natural stone since the implementation of GB6566-2001 "National Standard for Radionuclide Limits of Building Materials" for nearly 10 years. From a comprehensive analysis of the tracking of natural stone for many years. The results show that most of the radioactivity of natural stone belongs to Class A products, and most of the data indicators are far below the standard indicators, so natural stone has a large enough safety factor.
The use of natural stone products as building materials and decorative materials not only has a long history in China and the world, but also has become an indispensable product of modern urban construction and interior decoration. Even in developed countries and regions with advanced health and environmental protection awareness, natural stone is also a high-end decorative material that people admire. Although scientific testing proves the natural attributes of natural stone “original ecology†and health and environmental protection; although the AQSIQ has withdrawn the detection of radioactive indicators for imported and exported natural stone; although natural stone has the lowest energy consumption among all building materials... The misunderstanding of natural stone products has not been completely eliminated in the concept of many people. Perhaps the stone industry's propaganda on the original ecological stone products is not big enough? Perhaps it is the habitual thinking of "Ning is credible, not credible". It’s not a good idea to “make it three times.â€
The National Stone Quality Supervision and Inspection Center, the National Stone Standardization Technical Committee, and the China Stone Industry Association jointly issued a circular on the non-radioactive harm of marble to the human body, without the need for radionuclide limited detection, aimed at officially publishing documents through authoritative organizations. The form is further named as a natural stone product, guiding consumers to use natural stone products to decorate the living room and dress up the city. Since natural stone products are produced by cold working process and do not require calcination of high energy kiln, they are the lowest energy consumption products in building materials. At the same time, China has become the largest stone processing center with the largest amount of imported stone materials. The reuse of recycled water in the production line, the reuse of waste materials such as scraps and stone powder, etc., also make stone the most low-carbon, environmentally-friendly green building materials.
It is believed that with the constant recognition of the health, environmental protection and low-carbon energy-saving characteristics of natural stone products, the stone products created by nature will make our city more beautiful, home more warm and better life.
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