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石棉在现代工业上是一种重要的矿物,由于这种矿物具有较高的耐火性、良好的电绝缘性以及耐酸硷等性能,因此在许多工业部门中得到广泛的应用。因而在生产中接触石棉粉尘的工人数也随着增加。关于石棉粉尘对动物肺脏作用的实验研究过去已有一些报导,实验结果认为,不同种类和不同产地的石棉粉尘对机体的作用并不完全一致;此外认为引起肺脏纤维化病变的主要是长纤维的石棉粉尘。为了了解国产石棉尘的致病作用,我们用莱源石棉矿开采的石棉纤维,制备粉尘样本进行了动物实验。现将短纤维石棉粉尘对大鼠肺脏的作用报导如下:
Asbestos is an important mineral in modern industry. Due to its high fire resistance, good electrical insulation and acid-base resistance, it is widely used in many industrial sectors. As a result, the number of workers exposed to asbestos dust also increased with production. The experimental study on the effect of asbestos dust on the lungs of animals has been reported in the past, the experimental results show that different types and different origin of asbestos dust on the body’s role is not exactly the same; in addition that the cause of lung fibrosis lesions are mainly long fibers Asbestos dust. In order to understand the pathogenic role of domestic asbestos dust, we used asbestos fibers extracted from asbestos mine in Laiyuan to prepare dust samples for animal experiments. The short fiber asbestos dust now on the lungs of rats reported as follows: