【摘要】 PM2.5由于其较小的粒径、巨大的比表面积、较大的危害性等独有的特点而受到国际的广泛关注。该文简述了室内空气中PM2.5的暴露水平的研究,论述了PM2.5的物理化学性质、流行病学和毒理学特征研究进展,分析了室内PM2.5来源及影响室内PM2.5的控制因素,并提出了PM2.5的发展趋势。PM2.5的形成方式有两种:一种是直接以固态形式排出的一次粒子,另一种是由气态化学反应而生成的二次粒子。更多还原

【Abstract】 Extensive attention has been paid to PM2.5 in abroad because of its special characteristics of smaller particle size, larger specific surface area and adverse health effects. The exposure levels of indoor PM2.5, its physical and chemical properties and research progress of epidemiological and toxicological characteristics are briefly discussed in this paper. The pollution sources of indoor PM2.5 and the factors influencing the concentration of indoor PM2.5 are also analyzed and the research prospect of PM2.5 is brought forward. PM2.5 may result from direct emissions in solid condition into atmosphere as primary particle and gaseous chemical reactants in atmosphere as secondary particle.更多还原