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了为解我省乡镇石工矽肺的患病情况,于1984～1989年先后对14间露天及坑道采石场作了劳动卫生学调查,结果如下。一、本次调查的14间石场(6间乡办,8间村办),建场4～36年。接尘作业人数2369人(男1567、女802),年龄16～58岁。工龄1～32年。主要开采花岗岩石,马尾磨刀石、青石、黄杂石和石灰石。各含游离 SIO_2为74%,
To understand the prevalence of silicosis in the township masonry in our province, we conducted a survey on labor hygiene in 14 open pit and tunnel quarries from 1984 to 1989. Results are as follows. First, the survey of 14 stone farms (6 Township Office, 8 Village Office), built 4 to 36 years. The number of jobs dust 2369 (male 1567, female 802), aged 16 to 58 years old. 1 to 32 years of service. The main exploitation of granite stone, Mawei Grindstone, bluestone, yellow rock and limestone. Each containing free SIO_2 is 74%