There are two ways for ceramic tiles to radiate to human body.
Inhaling a large amount of radon for a long time will cause abnormal changes in cells.
Li Zengkuan, director of the Material Radiation Safety Inspection and Certification Department of China Building Materials Inspection and Certification Center, told the reporter that the radiation of ceramic tiles to consumers mainly has two aspects: internal radiation and external radiation. Internal radiation mainly refers to the radiation of radon to human body. Radon is a radioactive natural substance, colorless and odorless, easy to diffuse, soluble in water and fat. Radon emitted by ceramic tiles mainly comes from a chemical substance called radium, which exists in the raw materials of ceramic tiles, such as slag and zircon sand as emulsifiers (its main function is to improve the smoothness and wear resistance of ceramic tiles).
Radium decay produces radon. After radon enters the human respiratory tract, before decay, part of it can still be exhaled with respiratory activities, and the other part is absorbed by the human body by sticking to the respiratory tract. In addition to inhaling mainly from respiratory tract, a few can also be swallowed with the throat and enter the digestive tract, causing radiation to people in the body and destroying the respiratory system. Zhang Qi, deputy secretary-general of the Indoor Environmental Protection Committee of Beijing Building Decoration Association, also said that because radon has a high affinity for human fat, if people inhale a lot of radon for a long time, it will also affect people's nervous system and make people feel depressed and sleepy. If the human body inhales a large amount of radon for a long time, its radiation inside the human body will cause abnormal changes in cells, which will lead to lung cancer.
Gamma rays and beta rays will destroy human lymphocytes and reduce human immunity.
The external radiation of ceramic tiles to people mainly comes from chemical elements contained in raw materials, such as γ and β rays produced by the decay of radium and thorium. Gamma rays have strong penetrating power, which will penetrate the human body, collide with cells in the body, and destroy human lymphocytes, thus reducing human immunity. Beta rays have a short range and have a great influence on children, but because of their relatively weak penetration, a book can block its penetration.
expert opinion/advice
Don't tile the children's room.
Zhang Qi told reporters that due to the relatively high density of radon, it is generally suspended below one meter from the ground indoors. The lower the concentration of radon, the greater the concentration. Therefore, children's rooms should try not to be tiled. At the same time, because the height of the bed is generally low, people lying on the bed are just in the strong radiation range of radon. We can open more windows every day to make the air circulate and keep fresh, which can also reduce the radiation of ceramic tiles to the human body.
Do not use strong acid cleaners.
Do not use strong acidic cleaning agent when cleaning ceramic tiles, which will lead to accelerated aging and surface pulverization of ceramic tiles, increase the probability of human body inhaling ceramic tile powder and endanger human health, but the radioactivity of ceramic tiles will not increase due to the chemical reaction generated by cleaning agents. Among all the tiles, the ultra-white tiles in polished tiles have stronger radiation, and the precipitation rate of radioactive element radon on the surface of colored glazed tiles is higher than that of ordinary tiles.
It is best to choose matte bricks.
According to Guangsheng Song, since radioactive substances are colorless and odorless, people can't directly tell which tiles will exceed the standard in their daily life without special instruments, so try not to decorate all rooms with tiles when decorating. If you want to choose bricks, you'd better choose inferior smooth bricks. If you use polished tiles, try to turn on small lights at home at ordinary times to avoid direct light or reflection affecting your eyes.
Question 2: Is tile radiation harmful? In the ceramic tile industry, there is a topic that most people don't know: in fact, every piece has radiation more or less. Don't believe it, it's a long-standing fact. Radiation comes from its raw materials, such as soil, slag and stone powder, which is almost inevitable, and the radiation of natural marble is more serious. Compared with polished tiles, the radiation of polished tiles can be described as nine Niu Yi hairs, so Todd. Com tile mall is not recommended for large-scale use. These radioactive raw materials can increase the aesthetic feeling and strength of ceramic tiles. Its content in the formula is not very large, but it has a great influence on the firing effect. This is just like the trace elements in the human body, which can not be completely used in the formula. This is also understandable. However, there are two main aspects of tile radiation: internal radiation and external radiation. Internal radiation mainly refers to the radiation of radon to human body. Radon is a radioactive natural substance, colorless and tasteless, with the characteristics of easy diffusion, soluble in water and fat. Inhaling a large amount of radon for a long time will affect people's nervous system, make people depressed, and even lead to diseases such as lung cancer and breast cancer. The insiders also believe that the formula used now is actually much better than the formula used in ancient porcelain burning in terms of environmental protection performance. Now the research on ceramic tile raw materials is still in-depth, hoping to find materials that can replace these radioactive raw materials. Two: check the test report when buying tiles. Especially during this period, the monitoring results of the radiation dose level of ceramic tiles in the market by the State Administration for Industry and Commerce showed that 10% of ceramic tiles exceeded the standard. According to reports, the harmful substances emitted by inferior tiles will cause abnormal changes in human cells, which will lead to diseases such as lung cancer. It is reported that four of the five famous tiles in a city can't provide test reports on site to prove that the tiles are qualified in radiation. Many of the certificates produced by enterprises are aimed at a certain batch of products, and consumers need to see clearly whether the products they are testing and the products they intend to buy belong to the same batch. In addition, you need to pay attention to whether the report is within the validity period, usually one year. Because of the high density of radon, it is generally suspended below one meter from the ground indoors. So try not to stick tiles in children's rooms. At the same time, the height of the bed in citizens' homes is generally short, and the people lying on the bed are just within the strong radiation range of radon. Usually, they can open more windows, let the air circulate, keep the room fresh, and also reduce the radiation damage of ceramic tiles to the human body. Among all the tiles, the ultra-white tiles in polished tiles have stronger radiation, and the precipitation rate of radioactive element radon on the surface of colored glazed tiles is higher than that of ordinary tiles.
Question 3: Is the floor poisonous? Which is healthier, floor or floor tile? 10 points: the environmentally-friendly floor is nontoxic, and tiles are more harmful to the elderly and children than the floor.
The comfort of wooden floor far exceeds that of ceramic tile, and it is also superior in health index, decoration effect and outstanding taste. On the other hand, ceramic tiles conform to the tense rhythm of modern life, are easy to take care of, have good waterproof and anticorrosive properties and are simple to maintain.
The wood floor is a floor decoration material made of dried wood, which is an ideal material for floor decoration in living room, bedroom and study. It has the following advantages:
1, beautiful and natural, pollution-free.
Wood is natural, and its rings and textures can often form a beautiful picture, giving people a feeling of returning to nature. Its texture and color are unique and are deeply loved by people. Wood is the most typical green product and has no pollution source. Some wood has aromatic tincture, which can give off a healthy and soothing fragrance, which is safe to use and has good decorative effect.
2, light and hard
Compared with metal building materials and stone materials, wood is more convenient to transport and lay as a building material. According to the experimental results, the resistance of pine is 3 times that of Zhang Liwei steel, 25 times that of concrete, 50 times that of manpower and 4 times that of marble. The solid wood floor made of wood can better reflect its advantages after being laid on the ground.
3, easy to process
Wood can be sawed, planed, cut and even nailed at will, so the wood floor has unparalleled reprocessability. If we can paint all kinds of colors and keep the original patterns, we can create colorful effects.
4, good thermal insulation, with the function of adjusting temperature.
Wood is not easy to conduct heat, and it can absorb and evaporate the moisture in the air, so that the indoor air humidity can be kept in a comfortable range.
5, not easy to dew
Because the moisture absorption and humidity control performance of wood is better than that of metal, stone and concrete, there will be no "sweating" like water drops on the surface when the weather is wet or the temperature drops. In this way, when the wood floor is made of wood, the ground will not be wet and slippery, thus causing unnecessary trouble.
6, strong durability
The anti-seismic and anti-corrosion technology of wood is not inferior to other building materials. Many famous old buildings are still standing after thousands of years of wind and rain. Many wooden boats in the past have been immersed in water for a long time and are still strong, and so are the wooden floors.
Step 7 mitigate the impact
The impact and resistance of wood to human body are softer and more natural than other building materials, which is beneficial to human health and helps to protect the living safety of the elderly and children.
Question 4: Are there any harmful substances in the tiles? In fact, the harm of ceramic tiles to human body is not great, mainly the radon emitted by the "thunder" element that makes ceramic tiles. Long-term inhalation can easily lead to lung cancer, and the effective distance is one meter from the ground. As long as you pay attention to indoor ventilation at ordinary times, frequent ventilation can reduce the harm. The radiation is mainly γ and β rays produced by the decay of radium and thorium in ceramic tiles. Some ceramic tiles made by informal manufacturers contain this element, which is relatively large. Therefore, it is strongly recommended to buy regular goods. Hudson, for example, has done a good job in this regard. I set up my own R&D team in Italy in the early years, and Italy has high requirements for environmental protection.
Question 5: Are tiles toxic to home improvement? Generally speaking, the radiation of ceramic tiles is very little, which has almost no influence on the body, especially buying some tiles with bigger brands, such as Douglas tiles, which is almost impossible!
Question 6: Are inferior wall tiles harmful to human body? Some wall tiles contain harmful substances, which are harmful to human body.
Question 7: Are the tiles poisonous now? LS is right. I'm also going to decorate the house, but I'm still struggling. The wooden floor is easy to deform, and it won't look like it after two years. It is better to use tiles, but now it seems that tiles are neither good nor bad, and they are already toxic. I don't know if those businesses deliberately operated, so I don't worry about living now.
Question 8: Do tiles contain harmful substances? Ceramic tiles are not harmful to human body. The harm mainly comes from radon gas emitted by the "thunder" element that makes ceramic tiles. Long-term inhalation is easy to cause lung cancer. The effective distance is one meter from the ground. As long as you pay attention to indoor ventilation at ordinary times, frequent ventilation can reduce the harm. The radiation is mainly γ and β rays produced by the decay of radium and thorium in ceramic tiles. Some ceramic tiles made by informal manufacturers contain this element, which is relatively large.
Question 9: Are inferior floor tiles poisonous? Generally, the radiation of floor tiles is very small, so we should pay attention to the brand and quality. The selection method of ceramic tiles is to buy ceramic tiles in home decoration, and how to buy ceramic tiles with satisfactory value for money is a certain knowledge. Generally speaking, the principle of choosing ceramic tiles is: look, listen, three drops of water and four feet. First look at the appearance.