Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23354
Title: Photochemical trajectory modeling of ozone concentrations in Hong Kong
Authors: Cheng, HR
Saunders, SM
Guo, H 
Louie, PKK
Jiang, F
Keywords: Master Chemical Mechanism
Ozone
Photochemical ozone creation potential
Photochemical trajectory model
Issue Date: 2013
Publisher: Pergamon Press
Source: Environmental pollution, 2013, v. 180, p. 101-110 How to cite?
Journal: Environmental pollution 
Abstract: In this study, tropical cyclones over the East and South China Seas were found to be the most predominant weather conditions associated with the occurrence of high ozone (O3) episodes in Hong Kong in 2005-2009. A photochemical trajectory model coupled with Master Chemical Mechanism (MCM) was adapted to simulate the O3 concentrations during two O3 pollution episodes. The results agreed well with the observed data. A representative backward air mass trajectory was used to determine the contribution of each volatile organic compound (VOC) to the O3 levels. After taking into account both reactivity and mass emission of each VOC, 10 species were found to be the key O3 precursors in Hong Kong. Further analysis identified solvent related products accounting for 70% of the modeled O3 concentration in Hong Kong. The results highlight the importance of considering together reactivity and source sector emissions in developing targeted VOC reduction for O3 abatement strategies.
URI: http://hdl.handle.net/10397/23354
ISSN: 0269-7491
EISSN: 1873-6424
DOI: 10.1016/j.envpol.2013.04.039
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