【作者】 沈恒根； 赵兵涛；

【Author】 Shen henggen Zhao bingtao (Department of Environment science and engineering, Donghua University, Shanghai ,200051)

【机构】 东华大学环境科学与工程学院；

【摘要】 介绍了空气环境微粒PM_2.5的概念、研究的必要性及国内外PM_2.5的研究进展,包括化学组成、浓度水平、污染源类别、受体模型和排放的政策法规。最后指出了PM_2.5的主要研究方向。更多还原

【Abstract】 Introduction of the concept and studying necessity of PM2.5 , and description of the investigation status of PM2.5 has been presented, mainly including particle size, chemical composition, catalog of emission source, receptor model and policy or regulation. At the same time,the main investigation development of PM2.5 also were involved.更多还原