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| 1 | RESUSPENSION METHOD FOR ROAD SURFACE DUST COLLECTION AND AERODYNAMIC SIZE DISTRIBUTION CHARACTERIZATION显示文摘Traffic-generated fugitive dust is a source of urban atmospheric particulate pollution in Beijing. This paper introduces the resuspension method, recommended by the US EPA in AP-42 documents, for collecting Beijing road-surface dust. Analysis shows a single-peak distribution in the number size distribution and a double-peak mode for mass size distribution of the road surface dust. The median diameter of the mass concentration distribution of the road dust on a high-grade road was higher than that on a low-grade road. The ratio of PM2.5 to PM10 was consistent with that obtained in a similar study for Hong Kong. For the two selected road samples, the average relative deviation of the size distribution was 10.9% and 11.9%. All results indicate that the method introduced in this paper can effectively determine the size distribution of fugitive dust from traffic. | Jianhua Chen Hongfeng Zheng Wei Wang Hongjie Liu Ling Lu Linfa Bao Lihong Ren | 2006 | China Particuology2006，4，6： | 7 |
| 2 | Characteristics of nanoparticles emitted from burning of biomass fuels显示文摘The characteristics of the particles of the smoke that is emitted from the burning of biomass fuels were experimentally investigated using a laboratory-scale tube furnace and different types of biomass fuels:rubber wood,whole wood pellets and rice husks.Emitted amounts of particles,particle-bound polycyclic aromatic hydrocarbons(PAHs)and water-soluble organic carbon(WSOC)are discussed relative to the size of the emitted particles,ranging to as small as nano-size(<70 nm),and to the rate of heating rate during combustion.differential thermal analysis(DTA)and thermogravimetric analysis(TG)techniques were used to examine the effect of heating rate and biomass type on combustion behaviors relative to the characteristics of particle emissions.In the present study,more than 30%of the smoke particles from the burning of biomass fuel had a mass that fell within a range of<100 nm.Particles smaller than 0.43μm contributed greatly to the total levels of toxic PAHs and WSOC.The properties of these particles were influenced by the fuel component,the combustion conditions,and the particle size.Although TG–DTA results indicated that the heating rate in a range of 10–20°C did not show a significant effect on the combustion properties,there was a slight increase in the decomposition temperature as heating rate was increased.The nano-size particles had the smallest fraction of particle mass and particle-bound PAHs,but nonetheless these particles registered the largest fraction of particle-bound WSOC. | Mitsuhiko Hata Jiraporn Chomanee Thunyapat Thongyen Linfa Bao Surajit Tekasakul Perapong Tekasakul Yoshio Otani Masami Furuuchi | 2014 | Journal of Environmental Sciences2014，26，9： | 5 |
| 3 | Aircraft measurements of gaseous pollutants and particulate matter over Pearl River Delta in China显示文摘 | Wei Wang Lihong Ren Yuanhang Zhang Jianhua Chen Hongjie Liu Linfa Bao Shaojia Fan Dagang Tang | 2008 | Atmospheric Environment2008，，25： | 1 |
| 4 | Aircraft measurements of gaseous pollutants and particulate matter over Pearl River Delta in China显示文摘 | Wei Wang Lihong Ren Yuanhang Zhang Jianhua Chen Hongjie Liu Linfa Bao Shaojia Fan Dagang Tang | 2008 | Atmospheric Environment2008，，25： | 1 |
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