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尹××,男,43岁,钒生产车间溶化工。于1967年调入溶化工段后,每天工作6—8小时。操作地点:炉顶加料(多钒酸铵),炉前取料(V_2O_2),休息室只隔一层玻璃窗。厂房内的V_20_5烟尘浓度为:炉前7毫克/立方米,炉顶50毫克/立方米,劳保工具为防毒口罩(三年前是纱布口罩)。该工人初到此工段时感到鼻干燥、鼻出血,后经本院五官科检查发现鼻腔粘膜充血糜
Yin × ×, male, 43 years old, vanadium production workshop dissolved chemical. In 1967 transferred to the melting section, working 6-8 hours a day. Operating site: top feeding (ammonium vanadate), before the furnace feed (V_2O_2), the lounge separated by only a glass window. V_20_5 soot concentration in the workshop is: 7 milligrams / cubic meter in front of the stove, 50 milligrams / cubic meter on the top of the stove, and the labor protection tool is an anti-virus face mask (gauze mask three years ago). The workers first arrived in this section feel nasal dry, nosebleed, ENT examination found in our hospital after nasal mucosal congestion