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一、前言近年来,国内不少学者在研究接尘工人剂量-反应关系时,计算肺内粉尘存留量。由于方法不同,计算结果差异很大,急需实测肺内粉尘存留量的新技术。科思发现电焊工胸部磁强度高于正常人,为这一新技术提供了思路。其后许多学者分别研究了电焊工、煤矿工人、钢铁工人及石棉工人肺磁强度变化情况,认为测定肺磁强度可作为接尘工人剂量反应关系的指标。但尚未见到有关铀矿工肺磁污染水平的报道。
I. Introduction In recent years, many domestic scholars in the dust-dose workers study the relationship between the calculation of the amount of dust in the lungs. Due to different methods, the calculation results vary greatly, and the urgent need for a new technique for measuring the amount of dust in the lungs. Coase found that the welder’s chest has a higher magnetic intensity than normal, providing a way for this new technology. Since then, many scholars have studied the changes of the magnetic flux density of the welders, the coal miners, the steel workers and the asbestos workers, respectively. It is considered that the determination of the magnetic strength of the lungs can be used as an indicator of the dose-response relationship among workers exposed to dust. However, no reports have been reported on the levels of lung magnetism in uranium miners.