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本研究通过对武钢机总厂铸钢、铸铁和金工车间以及初轧厂1295人进行了10年的队列调查，结果表明铸造作业工人肺癌病发（SMR=2.91，P＜0．05）。通过历年环境中粉尘浓度及二氧化硅含量的监测，60、70年代铸造作业环境粉尘浓度严重超标，游离二氧化硅含量最高可达80％以上，铸造作业工人肺癌高发可能与矽尘致癌有关。
In the present study, a 12-year cohort survey of 1,295 people at the steel-making, cast iron and metalworking workshops and the bloom-rolling mill in WISCO was carried out. The results showed that the founding workers suffered from lung cancer (SMR = 2.91, P <0.05). Through the monitoring of dust concentration and silica content in the past years, the concentration of dust in foundry environment exceeded the standard in the 1960s and 1970s, and the content of free silica was up to 80%. The high incidence of lung cancer in casting workers may be related to the carcinogenesis of silica dust.