石棉本身并无毒害,它的最大危害来自于在粉碎、筛选石棉和石棉加工(弹松、梳棉、纺织)时,可产生大量粉尘,这是一种非常细小、肉眼几乎看不见的纤维。当这些细小的纤维被大量吸入人体内,就会附着并沉积在肺部,如果不能排出或被人体中的巨噬细胞所吞噬,久而久之就可能造成一系列的肺部疾病,甚至发生癌变。 Asbestos itself is not poisonous, and its greatest danger comes from the fact that it produces a great deal of dust when crushed, sieved asbestos and asbestos processing (puff, carding, weaving). It is a very small, almost invisible fiber to the naked eye. When these tiny fibers are inhaled into the human body in large quantities, they attach and deposit on the lungs. If they can not be excreted or swallowed by macrophages in the human body, they may cause a series of lung diseases and even carcinogenesis over time.