1 粉丝监测存在的问题 粉尘浓度监测是检验和评价防尘效果的一种主要方法。我国的粉尘浓度监测工作采用滤膜称重法延续了30多年,这种方法只测定总粉尘浓度,没有测定呼吸性粉尘浓度,因而不能确切反映出对作业人员的危害,存在局限性和片面性。以南昌有色金属公司所属11个钨矿为例,可以从一个侧面说明问题。这11个钨矿山均为高硅尘矿山,粉尘危害严重,对防尘工作十分重视,积极采取防尘 1 fans to monitor the problems Dust concentration monitoring is to test and evaluate the effectiveness of a major method of dust. China’s dust concentration monitoring using filter membrane weighing method lasted for more than 30 years, this method only determines the total dust concentration, did not determine the concentration of respiratory dust, which can not accurately reflect the hazards of workers, there are limitations and one-sidedness. Nanchang Nonferrous Metals Company owned 11 tungsten ore, for example, can illustrate the problem from a side. These 11 tungsten mines are all high-silica dust mines. The dust is seriously endangered and places great importance on dust prevention. Active dust prevention