Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21703
Title: Physical characterization of aerosol particles during the Chinese New Year's firework events
Authors: Zhang, M
Wang, X
Chen, J
Cheng, T
Wang, T 
Yang, X
Gong, Y
Geng, F
Chen, C
Keywords: Coagulation sink
Fireworks
Number concentration
Particle density
Shanghai
Size distribution
Issue Date: 2010
Publisher: Pergamon Press
Source: Atmospheric environment, 2010, v. 44, no. 39, p. 5191-5198 How to cite?
Journal: Atmospheric environment 
Abstract: Measurements for particles 10nm to 10μm 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 (100-500nm) and PM1 mass concentration, with a maximum total number concentration of 3.8×104cm-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 (2.7gcm-3) was identified as being particularly characteristic of the firework aerosols. Recalculated fine particles PM1 exhibited on average above 150μgm-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.
URI: http://hdl.handle.net/10397/21703
ISSN: 1352-2310
EISSN: 1873-2844
DOI: 10.1016/j.atmosenv.2010.08.048
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