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Anonymous users2024-02-07There is nothing wrong with general Class A stones.
In 2000, the state promulgated the "Standards for Radioactive Health Protection of Building Materials", which re-stipulates that building materials are divided into three categories: the production, marketing and use of Class A products are not restricted; Class B products cannot be used in buildings (such as residences, factories, public living houses, etc.), but can be used in structures (such as fences, gatehouses, pavilions, pavilions, verandahs, archways, patios, water towers, chimneys, poles, embankments, roads, hoards, etc.); Category C products must be restricted from sale and can only be used on structures such as roadbeds, culverts, dams, seawalls and buried pipelines outside residential areas. That is to say, Class B and C stone products should not be used for interior decoration of homes and offices.
Radioactivity Classification Control Standards and Data for Some Stones Sold on the Market (BQ KG) Sample Name --Radium --Thorium --Potassium --Category: Pearl Flower - Class A.
Wanshan Red - Class A.
Malachite green -- class A.
Indian Red - Class C.
May Day Red -- Category B.
Guilin Red -- Class C.
Luo Yuanhong -- Class A.
Stone Island Red -- Class B.
Maple Red -- Category B.
General Red - Class A.
Rhododendron red -- over class C.
Taishan Red --90 --1104 --Class A Lu Jinhua --1282 --Class B.
Cherry blossom red - class A.
Chrysanthemum Yellow --1455 --Class A.
Ma Lanhong --1196 --Class B.
South African Red -- 1328 -- Class B.
Sanbaohong 128 --1545 --Class B.
Jinan Qing - Class A.
Wendenbai --978 --Class A.
Five Lotus -- 1309 -- Class B.
Rose Red --1310 --Class B.
Taishan Red --1338 --Class B.
Rhododendron Green -- 3313 -- Over Class C.
Xili Red --1362 --Class A.
Qinxi Red --1273 --Class B.
Chuanhong --119 --184 --1395 --B Huidonghong --175 --1468 --B Shan Xiahong --208 --1400 --B tiger shell --104 --1608 --B lilac purple --116 --110 --1619 --B Pink Gang --1520 --B class.
Laguna Red --1191 --Class B.
Selected from the information of the Radiological Supervision and Testing Center of Building Materials of the State Building Materials Administration in October 2000) In addition: The International Radiological Defense Commission (ICRP) stipulates that the internal radiation radon concentration shall not be higher than 100bq m3, and the standards of China's A, B, and C three types of stone are:
Class A not higher than 70bq; Class B is not higher than 90BQ; Class C is not higher than 100bq.
China's standards are stricter than world standards.
China's A, B, C three types of stone are in line with the standard of stone, but the scope of use is different, can not be said in general, B and C class stone is radioactive excess stone.
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Anonymous users2024-02-06Granite force has the rare element radon, which can release radon gas, and radon gas itself is a carcinogen, plus there are radioactive metal substances, it is still used sparingly.
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Anonymous users2024-02-05My house is also granite, there are radioactive materials, it is recommended to use less.
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Anonymous users2024-02-04Granite has radioactive material. Or use it sparingly.
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Anonymous users2024-02-031. Granite is igneous rock.
It is the landmark rock of the continent, which mainly constitutes the upper crust of the continent, and its formation process is usually closely related to the tectonics, metamorphism and mineralization of the continent.
2. The earth's crust contains a certain amount of radioactive elements such as uranium, thorium, and radium.
Granite can emit a small amount of radiation due to the presence of trace amounts of radioactive metals.
3. Moreover, because the radioactivity contained in the substances that the human body has been exposed to for a long time exceeds the human tolerance threshold, it is easy to accumulate radiation in the body and be accompanied by dizziness.
Symptoms such as nausea and vomiting can be life-threatening in severe cases. Therefore, prolonged exposure to radioactive granite can also be harmful to the body.
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Anonymous users2024-02-02Summary. Hello, the query is possible, 1
Granite can be a carcinogenic killer.
Experts say that stone is generally radioactive, and red and green granite are the most serious, and the radon gas released by it is a lung carcinogen.
Does granite cause cancer.
Hello, the query is possible, 1Granite can be a carcinogenic killer2Experts said that the stone is generally radioactive, and the red and green granite is the most serious, and the radon deficiency and gas resistance released by it are lung carcinogens.
How to improve. What kind of texture is granite.
Granite is fine-grained, medium-sail particles, coarse-grained granular structure, or patchy structure, its particles are uniform and fine, and the gap is bright and small (porosity is generally answered, and the water absorption rate is not high (the water absorption rate is general, and it has good frost resistance.
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