Through observation of SCE of exposed people in certain carbon black factory, it showed that: the SCE of exposed people was obviously higher than non-exposed people (about 1.67-fold).

• 通过对某碳素厂接触生产性煤焦沥青烟气的工人人体外周血淋巴细胞SCE观察表明；车间接触组工人SCE明显高于非接触组工人(约1.；67倍);在接触组中；吸烟者SCE高于非吸烟者;