Granite Building Materials may be carcinogenic

 carcinogenic killer careful radiationPeople benzene, formaldehyde and other indoor pollution has gradually attention, but also lack of knowledge building radiation contamination. She  drill bits pointed out that the mostMuch hidden from the stone. Due to the earth's crust contain radioactive substances, natural stone, too.
Radioactive stone on the human body, there are two, one is the stone decay of radionuclides emit X-rays of the human bodyCause external irradiation, but the probability is very low; Another is the release of radon exposure on the human body inside. Radon is toShell radioactive uranium, radium and thorium decay products of radon is listed as one of 19 kinds of carcinogenic substances, mainly the production of induced lung cancerAccording to testing, the radioactivity of different colors are different stone. Highest red and green, white, black is the mostLow. Therefore, consumers should choose carefully the red, green, or red blotches with granite varieties. He said that the wet granite pads  graniticExtensive use of stone should not be in the room, especially not in the bedroom, children's room to use.
Using more than 60% the proportion of Guangdong
"The use of granite is indeed very popular in Guangdong." Guangdong Provincial Bureau of Nonferrous Metal Geological Exploration team captain Zhang Xinxiong 931Said Granite is an important building material in Guangdong, and some of the more serious areas of granite radiation. Geological SurveyAlthough the department has long been investigated, but now this problem has not yet attracted people's attention.
It is understood that the  cutting blades level of radioactivity is divided into stone by A, B, C three categories, according to regulations, only the A class can be used in home roomInterior decoration. House renovated to do the best detection
Natural marble, they need to be taken to dilute the pollution ways to reduce pollution. Radon half-life of only 3.2 days at roomRadon concentration in the open doors and windows after 20 to 30 minutes afterthe outdoor levels can be reduced.
Therefore, the easiest way is to enhance ventilation. Just a furnished room is best to be detected. If the test resultsIf failed, you can use lower radiation shield paint or lead-free installation, to prevent the release of radon from building materials. If the radioactive targetToo high, the stone must be replaced immediately.