An 8-stage Andersen particle sizing impactor was employed to separate and collect the primary particulate matter after coal combustion at different conditions,and the emission features of PM10,PM2.5,PM1 were compared and analyzed.

• 煤粉在不同条件下燃烧后；用8级Andersen粒子撞击器分离并收集燃烧后的颗粒物；比较和分析了不同条件对煤粉燃烧后PM10、PM2.；5、PM1排放的影响。