本研究以鋼鐵廠之修爐工人為研究對象，針對其作業場所員工游離二氧化矽暴露情況與健康效應進行探討。健康效應結果發現尿液中PGF2α與可呼吸性粉塵具有低度正相關(r2＝0.12)，但具統計上之意義(p＝0.014)。肺功能檢測部分發現控制組與暴露組之FEF75%(p＝0.042)，MEFR (p＝0.045)與FEF75-85% (p＝0.016)，p 值皆小於0.05具顯著差異。此外，本研究亦發現可呼吸性石英暴露濃度與FEF25%與MEFR相關，其r2值各為 0.102與 0.106，但p值皆為0.021(具統計上之意義)；其為低度負相關表示石英暴露量愈高則FEF25%與MEFR之檢測值愈低。

In this study, incinerator maintaining workers in a steel manufacturing plant were selected in order to assess their free silica exposure levels, and associated health-comes.Regarding the health effect, we found that workers’ urinary PGF2α levels had a poor correlation with their respirable dust correlations, but still was statistically significant (r2=0.12;p=0.014). Lung function parameters of FEF75%, MEFR, FEF75-85% between the controls (not exposure group) and exposure groups were statistically significant difference (p= 0.042, 0.045,and 0.016, respectively). In addition, FEF25% and MEFR were found with a negative correlation (regression coefficient= 0.102 and 0.106, respectively) with workers’ quartz exposure levels (both with a p-value of 0.021).