About to indoor environment of material of stone of radioactive pollution problem has been a topic of concern, has caused wide public concern. The national building radioactive supervision and inspection center expert said the building material industry as the only specialized in building materials radioactive supervision of the relevant units can use detection is the stone radioactive problems related to express their opinions, so that the consumers of stone material radioactive problem has a more comprehensive, the correct knowledge.
S in nature the universality of the radioactive exist
The radiation phenomena on earth in human before birth early, that is human is radioactive phenomena in the environment of the hundreds of thousands of years multiply. Earth almost all substance containing radioactive elements, including our human itself. Stone back to nature, containing radioactive substances is certain, normal.
S stone radioactivity level other building materials with the radioactivity of product of basic level
Build our survival, housing, office space is almost a building materials, manufacturing building materials from raw materials in nature and stone material taken from the crude ore mining, its essence is the same. Overall, the radioactivity of product of building materials of low dose radiation level, can't also will never may soon (short term) lead to deterministic effects. That some of the newspapers reported for "green" laying the cuckoo Granite Slab and lead to XXX infertility, or because of stone material radioactive leads to various kinds of cancer. So is that lack of theory and practice of the basis.
S stone material to human body health effects of radioactive levels
To low doses of radiation, professional personage also has different view, both sides lack the necessary epidemiological clinical data. But one thing is for sure, that is, of the radioactive high doses of radiation to the health of human body, will cause the harm of uncertainty, for the effect of building materials product, stone production low doses of radiation, could happen cancer, cancer probability with doses of rise and increase, generally for ten extremely few. The risk is not better than by car, by train, building construction, mining industries such as high risk. The classification of stone material standard and not harm or harmless boundary, it has to do with interest, that human cost analysis of a practice when the benefits of greater than costs, the practice is justified.
S standards of seriousness
Stone radioactive discriminant is a professional strong things, do not have a professional knowledge it is hard to understand, especially in recent years some expression is not clear, make people produce fear of speech, has caused the people to consumption of material of stone of panic and we are very worried. Of course not say: now that radioactive exists generally, damage degree of quantitative definitions, and no exact still talk stone radioactivity problem stem? The idea is not correct. The state mandatory standards JC518-93 have regulations properties, is must be carried out. But already issued a few years, stone production enterprise managers as a great attention.
S color radioactive is not scientific judgment stone material
According to our national stone radioactive supervision inspection samples and entrusted sample test results show that the color of the stone material can be used as the basis for judging stone radioactive. Red stone radioactive have high low, cuckoo red, South Africa, India and red red high, have a plenty of a class B and class C. And A lot of red stone material, such as WanShanGong, LuoYuanGong is A kind of product. Is the stone material of same breed of radioactive also because different. Such as the cuckoo for producing area is different, some red to C products, others for A class. Green stone material also is so, at present we detected "cuckoo green", is radioactive substances
The highest content of stone products, it is not red, but the green. However, most of the green stone radioactive are low. Such as lotus green, malachite green, etc. As for bring flower stone material, have high low, but also hard to distinguish. Black and white, but the relatively low number of samples, it is not enough to measure to eliminate them higher the possibility of the existence of radioactive. In short, stone material radioactive can't see, and from color with measurement authentication, institutions recognized by the unit test data shall prevail.
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