中文摘要：

将广州灰霾天气中的单个气溶胶颗粒物分为粗粒子（半径尺〉1．0μm）和细粒子（半径R≤1．0μm）两部分，将它们采集在采集膜上，用透射电子显微镜对粒子进行形态分析．分析结果发现：灰霾天气形成前后的气溶胶细颗粒物的形态结构有着明显的差异；气溶胶中的卫星滴结构粒子与灰霾天气的形成具有较好的相关性；在灰霾天气发生过程中，酸性粒子增多．

英文摘要：

The single aerosol particle in the haze in Guangzhou, which was size-fractionated into the coarse part （radius R 〉 1.0 μm） and the fine part （radius R ≤ 1.0 μm）, was collected on the electron microscope screen for morphological analysis using transmission electron microscope. By the comparison of the shape of single aerosol particle before and after the haze, apparent difference is revealed, and good correlation between the particles with satellite droplet structure and the haze is demonstrated. Moreover, an increase in the number of acidic particles during the formation of haze is observed.