论文部分内容阅读
一、国内尘肺情况(一)、一般情况解放初期我们对矿山尘肺知道的很少。1954~1955年国内才有零星报导。矽肺问题是1956年才开始暴露,1957年问题就大了。解放初期接收过来的矿山,规模小,都是打手锤,粉尘浓度在20—30毫克/立方米左右,1954~1955,矿山推广了机械化作业,打风钻,问题就严重了。1956年国务院颁
First, the domestic situation of pneumoconiosis (A), the general situation of liberation We know little about the pneumoconiosis mine. 1954 ~ 1955 only sporadic reports. The problem of silicosis began to be exposed in 1956, and the problem was great in 1957. In the early days of the liberation, the mines that were received over a small scale were all beaters. The dust concentration was about 20-30 mg / m 3. From 1954 to 1955, mechanized operations were promoted in mines and the problem was serious. 1956 State Council awarded