8Sun Y, Song T, Tang G, et al. The Vertical Distribu- tion of Pm2.5 and Boundary-layer Structure During Summer Haze in Beijing [J].Atmospheric Environment, 2013,74(0): 413--421.
9Shi M, Wu H, Zhang S, et al. Weekly Cycle of Mag- netic Characteristics of the Daily Pm2.5 and Pm2.5 - 10 in Beijing, China [J ].Atmospheric Environment, 2014, 98(0): 357-367.
10Bennett A.Air Filtration: Innovations in Industrial Air Filtration[J].Filtration & Separation,2010,47(4):20--23.
