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The Quantitative Analysis of Ferruginous Bodies in Lung of Coal Worker's Pneumoconiosis

Li Hongzhen et.al  
In this paper, ferruginous bodies were extracted from lung tissue by Smith's digest-lve method, and analyse'dthe component ofpulmonary mineral dus tby X-ray diffraction.The detectable rate of ferruginous bodies is 1050cases is 100% by digestive method. There are1~15,000 ferruginous bodies/g wet lung, Theferruginous bodies of 59.04% cases are morethan 100 bodies/g wet lung tissue. There aretwo kinds of core, the black and transparent,thl number of the later one were twiceor more than black core in 59% casesThere is significant difference of ferruginousbodies in pneumoconiosis and no pneumocon-iosis. Experts of abroad thought that 100asbestos bodies/g wet lung be limited value toseparate exposed and unexposed occupationalgroup. There are 1 to 150 times greater than100 bodies/g wet lung in 5O% cases. We foundthat there are the X-ray diffraction peaks ofd=8.434 and d=8.261. The dust is classifiedto amphibole. It may be one of factors offerruginous bodies' core formation.
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