The aim of this study is to set up a morphological technique for in situ demonstration of superoxide anion (O2) in alveolar macrophages (AMs) induced by silicious dusts.

• 建立无机有毒粉尘颗粒致肺泡巨噬细胞(alveolar macrophages, AMs)产生超氧阴离子(O2)的原位显示技术。