郑州国棉二厂有三套清花机,排放大量棉尘。过去由于滤尘装置效率低,清花车间空气中含尘量每立方米达23毫克以上。棉尘经滤尘装置降到地下室,每周需要10多人用半天时间去清除。人一进去,干燥松软的棉尘四起,工人们虽然身穿防尘工作服,戴双层口罩,但还是迷眼呛鼻,不少人患眼炎、 Zhengzhou Guomian two plants have three sets of flowers, discharge large amounts of cotton dust. In the past due to the low efficiency of the dust filter device, the volume of dust in the air of the clearing workshop was more than 23 milligrams per cubic meter. Cotton dust by the dust filter device down to the basement, weekly needs more than 10 people with half a day to clear. People go in, dry and soft cotton dust everywhere, although workers wearing dust-proof overalls, wearing double masks, but still confused nose, many people suffering from ophthalmia,