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本文对５０６名铸钢接尘工人，１５５０名铸铁接尘工人．７３８名对照工人进行了肺通气功能的测定与比较分析。结果表明：无论吸烟与否、铸钢、铸铁接尘工人ＦＶＣ、ＦＥＶ１．０等肺功能指标的实测值占预计值百分比的下降，肺功能异常率的升高，均较对照工人为明显，铸钢工人肺功能的损害尤为严重。三年追踪观察结果显示：铸钢工人ＦＶＣ、ＦＥＶ１．０的年均下降值大于铸铁工人。铸钢与铸铁接尘工人相同累计接尘量，相同接尘工龄与相同工种间的比较，亦均显示铸钢工人肺功能的损害较铸铁工人为重。
In this paper, 506 cast steel dust workers, 1550 cast iron dust workers. 738 control workers were measured pulmonary ventilation function and comparative analysis. The results showed that the measured value of pulmonary function indexes such as FVC and FEV1.0 in cast steel and cast iron exposed workers accounted for a declining percentage of the predicted value and the rate of abnormal lung function was higher than that of the control workers, Steel workers lung damage is particularly serious. Three years of follow-up observation showed that the average annual drop of FVC and FEV1.0 of cast steel workers was greater than that of cast iron workers. The same cumulative amount of dust collected by cast steel and cast iron dust collectors also showed that the damage of lung function of cast steel workers was more serious than that of cast iron workers.