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为了解大理石尘对工人健康的危害程度,我们于1989年对某大理石厂进行了调查,现将结果报告如下。调查对象大理石厂锯工、磨工等6个车间96名工人,男66人,女30人。最大年龄71岁,最小年龄22岁,平均年龄36.5岁。工龄最长33年,最短1年,平均工龄9.7年;工龄在15年以上者者有20人,总受检人数的20.8％。车间粉尘浓度最低粉尘浓度1.22mg/m~3,最高36.66mg/m~3,平均24.96mg/m~3。分散度<2μm 占35.2％,2～5μm 占51.6％。大理石尘游离 SiO_2含量在10％以下。
In order to understand the extent of marble dust to the health of workers, we conducted a survey of a marble factory in 1989 and the results are reported as follows. Survey workers marble factory sawing, grinding and other six workshops 96 workers, 66 males and 30 females. The oldest is 71 years old, the youngest is 22 years old and the mean is 36.5 years old. The longest service is 33 years, the shortest is 1 year, and the average length of service is 9.7 years. There are 20 persons who are over 15 years old and 20.8% of the total subjects. Workshop dust concentration of the lowest dust concentration 1.22mg / m ~ 3, the highest 36.66mg / m ~ 3, an average of 24.96mg / m3. Dispersion <2μm accounted for 35.2%, 2 ~ 5μm accounted for 51.6%. Marble dust free SiO_2 content below 10%.