| Title | Physical characterization of aerosol particles during the Chinese New Year's firework events |
| Authors | Zhang, Min Wang, Xuemei Chen, Jianmin Cheng, Tiantao Wang, Tao Yang, Xin Gong, Youguo Geng, Fuhai Chen, Changhong |
| Affiliation | Fudan Univ, Dept Environm Sci & Engn, Ctr Atmospher Chem, Shanghai 200433, Peoples R China. Hong Kong Polytech Univ, Dept Civil & Struct Engn, Hong Kong, Hong Kong, Peoples R China. Peking Univ, Coll Environm Sci & Engn, Beijing 100871, Peoples R China. Shanghai Meteorol Bur, Shanghai 200135, Peoples R China. Shanghai Acad Environm Sci, Shanghai 200233, Peoples R China. |
| Keywords | Fireworks Number concentration Size distribution Coagulation sink Particle density Shanghai NUCLEATION MODE PARTICLES LONG-TERM EXPOSURE AIR-POLLUTION ATMOSPHERIC PARTICLES SIZE DISTRIBUTIONS AIRBORNE PARTICLES FINE PARTICULATE MORTALITY DENSITY GROWTH |
| Issue Date | 2010 |
| Publisher | 大气环境 |
| Citation | ATMOSPHERIC ENVIRONMENT.2010,44,(39),5191-5198. |
| Abstract | Measurements for particles 10 nm to 10 gm were taken using a Wide-range Particle Spectrometer during the Chinese New Year (CNY) celebrations in 2009 in Shanghai, China. These celebrations provided an opportunity to study the number concentration and size distribution of particles in an especial atmospheric pollution situation due to firework displays. The firework activities had a clear contribution to the number concentration of small accumulation mode particles (100-500 nm) and PM(1) mass concentration, with a maximum total number concentration of 3.8 x 10(4) cm(-3). A clear shift of particles from nucleation and Aitken mode to small accumulation mode was observed at the peak of the CNY firework event, which can be explained by reduced atmospheric lifetimes of smaller particles via the concept of the coagulation sink. High particle density (2.7 g cm(-3)) was identified as being particularly characteristic of the firework aerosols. Recalculated fine particles PM(1) exhibited on average above 150 mu g m(-3) for more than 12 hours, which was a health risk to susceptible individuals. Integral physical parameters of firework aerosols were calculated for understanding their physical properties and further model simulation. (C) 2010 Elsevier Ltd. All rights reserved. |
| URI | http://hdl.handle.net/20.500.11897/241967 |
| ISSN | 1352-2310 |
| DOI | 10.1016/j.atmosenv.2010.08.048 |
| Indexed | SCI(E) |
| Appears in Collections: | 环境科学与工程学院 |
