title: Characteristics of lung dusts and their relation to dust exposure and pathological findings in the lungs.
abstract: Lung dusts were investigated, post-mortem, in twenty-five miners from mixed metal mines, tunnels, and quarries who had exposed to high concentrations of mixed dust containing about 20-25% free crystalline silica. The character of the relations found between the amount of quartz per 100 g dry tissue and the clinical, X-ray and pathological findings is similar to that established in coal miners. The difference lies in the fact that with equal amounts of quartz per 100 g dry tissue, there is less silicosis in coal miners than in our cases; the average residence time of retained dust is longer in coal miners, but its quartz per cent is lower.
mesh_terms: D002031:Bulgaria; D003032:Coal Mining; D003300:Copper; D006801:Humans; D007854:Lead; D008168:Lung / Q000032:analysis*; D008906:Mining; D011791:Quartz / Q000032:analysis*; D012306:Risk; D012822:Silicon Dioxide / Q000032:analysis*; D012829:Silicosis / Q000209:etiology* / Q000473:pathology; D014501:Uranium; D015032:Zinc
chemical_list: D011791:Quartz; D007854:Lead; D014501:Uranium; D012822:Silicon Dioxide; D003300:Copper; D015032:Zinc