二次颗粒物

在特殊污染时期，长沙市PM2.5主要来源于二次颗粒物和生物质燃烧源（41.9%），可见生物质燃烧是引起特殊污染的重要原因。

During seriously polluted period , PM2.5 of Changsha mainly came from secondary aerosol and biomass burning ( contributed 41.9 % ), which implied that biomass burning was the important reason of Changsha PM2.5 serious pollution .

讨论了亚微米区间二次颗粒物盐类的化学形态。

The chemical speciation of the second particulate salts in ultra-fine particles was discussed .

采取以上削减气态污染物的措施，均有利于控制二次颗粒物产生和臭氧污染。

Above measures to cut the gaseous pollutants are effective means for controlling the production of secondary particles and ozone pollution .

大气二次颗粒物是影响大气辐射强迫和全球气候变化最不确定的因素之一。

Secondary fine particulate matters ( SFPM ) is one of the most uncertain factors influencing on the radiative forcing and global climate changes .

本地土壤扬尘源主要受温度影响，而远程传输的燃煤和二次颗粒物源主要受西北风控制。②大气颗粒物浓度不仅受污染源强控制，而且很大程度上取决于气象条件的变化。

The local soil dust was affected by temperature , while long range transport coal combustion & secondary aerosols was dominated by northwesterly wind . Second , meteorological conditions as well as pollution sources do effect on PM concentrations .

结合前沿推进的Delaunay三角化网格生成及应用大气二次细颗粒物形成机理的前沿研究

Delaunay Triangulation for Internal Node Generation in Frontal Approach and Application Advances in the Mechanism of Secondary Fine Particulate Matters Formation

大气二次细颗粒物形成机理的前沿研究

Advances in the Mechanism of Secondary Fine Particulate Matters Formation