Dufresne A, Lesage J, Perrault G
Am Ind Hyg Assoc J. 1987 Feb;48(2):160-6. doi: 10.1080/15298668791384562.
Workers in the silicon carbide industry have experienced occupational health diseases, particularly lung disorders such as silicosis. The silicon carbide production process mainly employs petroleum coke, sawdust, pure crystalline silica and graphite. Since crystalline silica is present in the occupational environment, the airborne dust content of various polymorphs of silica, especially quartz, cristobalite and tridymite, was determined by X-ray diffraction analysis. The analytical method was modified to eliminate graphite, since it overlaps with the main diffraction plane of quartz. Exploratory field surveys were conducted to identify the minerals present in that occupational environment and to evaluate the validity of the analytical method. The surveys provided information on the mineralogical nature of the dust, its respirable content and the concentration of silica polymorphs. Polycyclic aromatic hydrocarbons also were measured, and the effect of their adsorption on graphite was evaluated.
碳化硅行业的工人曾患职业健康疾病，尤其是肺部疾病，如矽肺病。碳化硅生产过程主要使用石油焦、锯末、纯结晶二氧化硅和石墨。由于职业环境中存在结晶二氧化硅，因此通过X射线衍射分析测定了二氧化硅各种多晶型物，特别是石英、方石英和鳞石英的空气传播粉尘含量。对分析方法进行了改进以消除石墨，因为它与石英的主要衍射面重叠。开展了探索性实地调查，以确定该职业环境中存在的矿物质，并评估分析方法的有效性。这些调查提供了有关粉尘的矿物学性质、可吸入含量以及二氧化硅多晶型物浓度的信息。还对多环芳烃进行了测量，并评估了它们在石墨上的吸附效果。
