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Why Artificial Quartz Stone No Radiation

According to understand, natural stone to granite and marble mainly, its itself will release out radioactive elements, main is refers to radium, and thorium, and potassium three species radioactive elements, they in decay in the will produced a carcinogenic sex is strong of radioactive material---radon, dang people inhalation radon Hou, radon decay will caused respiratory radiation injury, induced lung cancer, has was who announced for 19# species main of environment carcinogenic material one of. For the question is to understand many people misunderstand the meaning of no radiation or different? A: no radiation, is difficult to achieve under conventional conditions, must be to reach absolute zero-273.15 ° c can, without thermal radiation,