Is the toilet also radioactive? This is not a mess. When consumers buy white and bright ceramic sanitary ware, they may not think of these products that cause excessive radionuclides due to excessive whitening, causing chronic damage to the human body.
Recently, the quality inspection results announced by the General Administration of Quality Supervision, Inspection and Quarantine showed that the quality of some toilets is extremely poor and the content of radionuclides is excessive. The reason for this is that individual companies have tried to brighten their products on the surface and have tried to brighten their products. Too many zirconium-based raw materials have been added to the formula, ignoring the extremely high radionuclide content of these raw materials, resulting in excessive radionuclide levels of the products. Or the radionuclide content is close to the critical value.
In fact, the problem of radioactive contamination of ceramic sanitary ware is not the cause of concern today. CCTV has broadcast a news report that a householder in Shenyang had radioactive contamination due to the use of ceramic cleaners for home decoration, causing both parents to have nasal cancer. This news has aroused strong reactions among consumers. Consumers have called the relevant departments and asked whether the toilets, basins, bathtubs and tiles used in the home have radioactive contamination. Some consumers said that only previously heard of natural stone radioactive, I did not expect that sanitary ware is also radioactive.
The glaze on the ceramic surface determines the radioactivity
Experts from the State Construction Materials Industry Radioactive and Harmful Substance Supervision, Inspection and Test Center told reporters that ceramic sanitary ware such as toilets and basins are mainly formed from clay, gravel, slag, or industrial waste, and some natural aids. In particular, "glazes" on the surface of ceramics contain highly radioactive zirconium indium sand. Although the firing temperature of ceramics is mostly in the range of 1100 to 1300, the radioactivity of these substances cannot be eliminated, and the level of radioactivity is determined by the radioactivity in the material. Therefore, the ceramic sanitary ware produced by companies varies in content of radioactive substances.
However, it is certain that in all ceramic products, ultra-white products in the polishing ware have stronger radiation performance, and the precipitation rate of radioactive elements on the surface of the color enamel products is higher than that of ordinary products, while the radioactivity of matt products is lower than that of polishing. product.
According to the expert, there are two main aspects of radiation hazards in ceramic sanitary ware, namely radiation in the body and radiation in vitro. The radiation in the body is mainly derived from a radioactive substance, helium and its daughters, formed when radioactive radiation decays in the air. At the same time as it acts on the human body, it decays into a nuclide that the body can absorb, enters the human respiratory system, causes radiation damage, and induces lung cancer. In addition, wolfberry also has a high affinity for human body fat, thus affecting the human nervous system, making people sleepless and drowsy. Because radioactive materials are colorless and odorless, if there is no special instrument to measure, in daily life, people can't directly discern which ceramic sanitary ware has exceeded the radiation.
In China, there are still no specific standards for the protection of building ceramics. With the rapid development of the industry, the phenomenon of oversupply of products has become more and more serious, and fierce market competition has led some criminals to take risks. The lag of the standard makes these criminals more likely to have a chance.
The relevant technical staff of a well-known sanitary ware manufacturer in China said in an interview with reporters that at present, the main reason why some small-scale enterprises produce inferior radioactive substances in toilets is the pursuit of interests. In order to increase the brightness of ceramics or the physical properties of ceramics, excessive amounts of radioactive minerals are added in excess, which inevitably leads to excessive radioactivity of the product. In particular, some enterprises with relatively small production scale and immature technology do not have well-equipped safety testing equipment and their products are exceedingly radioactive. However, due to the lack of relevant national standards and regulations, relevant departments have encountered obstacles in law enforcement and corporate fraud.
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