Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/20231
Title: Establishing a conceptual model for photochemical ozone pollution in subtropical Hong Kong
Authors: Ling, ZH
Guo, H 
Zheng, JY
Louie, PKK
Cheng, HR
Jiang, F
Cheung, K
Wong, LC
Feng, XQ
Keywords: Conceptual model
Hong Kong
Ozone
Regional
Super-regional
Issue Date: 2012
Publisher: Pergamon Press
Journal: Atmospheric environment 
Abstract: Photochemical ozone (O 3) formation is related to its precursors and meteorological conditions. A conceptual model of O 3 air pollution is developed based on the analysis of data obtained at Tung Chung (TC) in Hong Kong. By comparing meteorological parameters between O 3 and non-O 3 episode days, it was found that high temperatures, strong solar radiation, low wind speeds and relative humidity, northeasterly and/or northwesterly prevailing winds were favorable for the O 3 formation, while tropical cyclones were most conducive to the occurrence of O 3 episodes. Backward trajectories simulation and graphical illustration of O 3 pollution suggested that super-regional (i.e. central and eastern China) and regional (i.e. Pearl River Delta, southern China) transport was another factor that contributed to high O 3 levels in Hong Kong. The photochemical O 3 formation, generally VOC-limited in Hong Kong, was controlled by a small number of volatile organic compounds (VOCs). Furthermore, the positive matrix factorization (PMF) simulation suggested that solvent usage and vehicular emissions are the major contributors to ambient VOCs in Hong Kong. Finally, this paper presents recommendations for further O 3 research and implementation of O 3 control strategies.
URI: http://hdl.handle.net/10397/20231
ISSN: 1352-2310
EISSN: 1873-2844
DOI: 10.1016/j.atmosenv.2012.09.051
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

17
Last Week
0
Last month
0
Citations as of Oct 19, 2017

WEB OF SCIENCETM
Citations

15
Last Week
0
Last month
0
Citations as of Oct 15, 2017

Page view(s)

46
Last Week
0
Last month
Checked on Oct 15, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.