January 3 recently, Beijing smog, Beijing University of chemical technology of polymer Nano-composite laboratory professor Yong Liu desktop scanning electron microscope, observe after recent anti-haze haze particles collected on the nasal mask filter, as well as analysis of smog particles contain a variety of elements.

To prevent haze haze particles collected on the nasal mask filter.

Associate Professor, Beijing University of chemical technology, supervisor of Liu Yong said, using samples is to use anti-haze 10 days nasal mask filter, scanning electron microscope is about 2000 times times, can clearly see the attached to the fibers of filter materials of micron-sized fog and haze particles.

According to him, is mainly seen through a experimental solid state smog particles, such as iron oxide, calcium carbonate, sulfate, non-solid aerosols through the other way to see it.

1月3日 近日，北京持续雾霾天气，北京化工大学高分子纳米复合材料实验室刘勇教授通过台式扫描电子显微镜，观察近期使用后的防霾鼻罩滤芯上采集的雾霾颗粒，以及分析雾霾颗粒里面含有的各种元素。

图为防霾鼻罩滤芯上采集的雾霾颗粒。

北京化工大学副教授、博士生导师刘勇介绍说，实验采用的样本是使用10天左右的防霾鼻罩的滤芯，通过扫描电子显微镜放大2000倍左右，能清晰地看到附着在滤芯材料纤维上的微米级大小的雾霾颗粒。

据他介绍，通过实验看到的主要是固态的雾霾颗粒，有碳酸钙、氧化铁、硫酸盐等，非固态的气溶胶则要通过另外的方式才能看到。