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本文对江西、湖南、河南省属九个陶瓷厂,1960—1974年在册职工14316人进行了尘肺流行病学调查。结果发现,陶瓷工人尘肺的发生和发展与钨矿工人矽肺大不相同,具有潜伏期长、0~+所占比重大、病情轻、形成矽肺后又不具有延缓发展的特点。本文认为:该特点是由于混合性粉尘中的硅酸铝盐降低了游离SiO_2的表面活性,使其致病能力受到影响。
In this paper, nine pottery factories in Jiangxi, Hunan and Henan provinces were investigated. Epidemiological investigation of pneumoconiosis was carried out among 14316 registered workers in 1960-1974. The results showed that the occurrence and development of pneumoconiosis in ceramic workers were very different from those of tungsten miners. They had the characteristics of long incubation period, large proportion of 0 ~ +, mild disease, and no delaying development after the formation of silicosis. This paper argues that this feature is due to the fact that the silicic acid aluminum salt in the mixed dust reduces the surface activity of free SiO 2 and affects its pathogenicity.