Stone pollution

The epidemic has also brought home improvement of indoor air pollution, indoor air pollution and even became a key national concern, experts said widespread radioactive stone, Marble Slab and red and green the most serious, it is the release of radon cause lung cancer substances.
    Excessive air pollution, residential, have requested the guerrillas decoration, decoration company also has requested the decoration. In general, the heavy use of man-made indoor decorative plate, a relatively high likelihood of excessive pollution. Wooden furniture products of formaldehyde pollution is also more common, while the regular manufacturers of solid wood furniture and wood flooring cleaner.
   "Prevention of pollution from the source of formaldehyde in the beginning, if not eradicate the pollution to the." Gongde Wei said the release of formaldehyde, a period of 3 to 15 years, governance is a long process, so consumers should buy materials and decoration will began to pay attention to prevent contamination.
    Institute of Geochemistry, China Stone Academy of Sciences, said senior engineer Liu Qiling people of benzene, formaldehyde and other indoor air pollution has been gradually attention, but also recognized the lack of radiation-contaminated building materials. She pointed out that the Culture Stone on the health hazards of radioactive There are two types of stone in the release of X-ray decay of radionuclides, external radiation on the human body, but the probability is very low; the other is the release of radon on the human body caused by irradiation. Radon is radioactive uranium in the earth's crust, radium and thorium decay products, radon is listed as one of 19 types of carcinogenic substances, mainly induce the production of lung cancer.

    According to the test, the radioactivity of different colors of stone are also different. The highest is red and green, white, black is the lowest. Therefore, consumers should be careful selection of red, green or red blotches with Stone Tile varieties. Extensive use of Stone should not be in the room, especially not in the bedroom, children room to use.
It is understood that the level of radioactivity of the stone is divided by A, B, C categories, according to regulations, only the A class can be used for home decoration.
So how can we reduce the pollution of natural stone it? Experts believe that the natural marble, the approach should be taken to dilute the pollution, to reduce pollution. Radon half-life of only 3.2 days, the indoor radon concentration in the opening 20 to 30 minutes after the doors and windows can be reduced after the outdoor levels.