关于石棉粉尘高度致病性的原因曾有许多推测,但至今仍没有令人满意的假说。最初提出的理论是基于机械刺激,认为吸入的石棉纤维,具有穿透能力,能刺穿脆弱的肺泡,产生轻微的损伤。但是,当发现玻璃纤维和制陶硅酸铝纤维粉尘在肺内不致纤维化时,这种概念被淘汰。其次,以化学结构为基础的理论在发 There have been many speculations as to the high pathogenicity of asbestos dust, but so far no satisfactory hypothesis has been reached. The theory initially proposed was based on mechanical stimulation and believed that inhaled asbestos fibers had the ability to penetrate, piercing vulnerable alveoli and causing minor damage. However, this concept was eliminated when it was found that fiberglass and ceramic aluminum silicate fiber dust were not fibrotic in the lungs. Second, theories based on chemical structure are on the way