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警惕氡对人类的危害 放射性气体氡是铀系元素镭的衰变产物。它以微量形式存在于自然界中,在人类生活和工作的室内环境中,氡在一定条件下可达到危害人体健康的浓度。 氡致癌的机理是,弥漫在空气中的氡可衰变为铅、铋、钋的放射性同位素,以金属离子形式与空气一道被人们吸入肺脏,有的附着在支气管表层粘膜上,有的溶入体液进入细胞组织,它们继续衰变放出粒子破坏细胞组织,诱发癌变。
Be wary of human hazards The radioactive gas helium is the decay product of the uranium-based element radium. It exists in the form of traces in the natural world. In the indoor environment where humans live and work, they can reach concentrations that endanger human health under certain conditions. The carcinogenic mechanism of carp is that the plutonium diffused in the air can decay into radioactive isotopes of lead, strontium and barium. It is inhaled into the lungs in the form of metal ions together with air. Some adhere to the bronchial epithelium and some dissolve into body fluids. Into the cell tissue, they continue to decay and release particles to destroy cell tissue and induce cancer.