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石棉肺石棉肺是长期吸入石棉尘后以肺内肺泡壁和间质纤维化为特征的职业性尘肺之一,随着我国工业建设的迅速发展,接触石棉工人日益增多,对石棉肺的防治更应重视。石棉属硅酸盐性粉尘,结构式为3MgO、SiO_2、2H_2O或混有钙盐、铁盐等,发病缓慢。此外,石棉尘污染大气、水源,国际上对此亦十分重视,石棉肺并发结核者不多(1.6％),并发肺癌(包括胸膜腔间皮瘤者)高达17～23％因而受到国内外注目。一、石棉的理化特性: 石棉为纤维性晶体状结构物,极细(可达20～
Asbestos Lungs Asbestosis Lungs is one of the occupational pneumoconiosis characterized by long-term inhalation of asbestos dust and pulmonary alveolar wall and interstitial fibrosis. With the rapid development of industrial construction in our country, asbestos workers are exposed more and more, asbestos lung prevention and cure is more Should be valued. Asbestos silicate dust, structural formula 3MgO, SiO_2, 2H_2O or mixed with calcium salts, iron salts, etc., the incidence is slow. In addition, asbestos dust pollutes the atmosphere and water sources. International attention is also paid to it. Few asbestos lung tuberculosis (1.6%) and up to 17-23% of lung cancer (including pleural mesothelioma) are attracted attention both at home and abroad . First, the physical and chemical properties of asbestos: asbestos fibrous crystalline structure, very fine (up to 20 ~