| Title: | Photochemical trajectory modeling of ozone concentrations in Hong Kong |
| Author(s): | Cheng HR; Saunders SM; Guo H; Louie PK; Jiang F; |
| Address: | "Department of Environmental Engineering, School of Resources and Environmental Sciences, Wuhan University, China" |
| DOI: | 10.1016/j.envpol.2013.04.039 |
| ISSN/ISBN: | 1873-6424 (Electronic) 0269-7491 (Linking) |
| 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" |
| Keywords: | "Air Pollutants/*analysis Environmental Monitoring/*methods Hong Kong *Models, Chemical Ozone/*analysis Volatile Organic Compounds/analysis Master Chemical Mechanism Ozone Photochemical ozone creation potential Photochemical trajectory model;" |
| Notes: | "MedlineCheng, H R Saunders, S M Guo, H Louie, P K K Jiang, F eng Research Support, Non-U.S. Gov't England 2013/06/12 Environ Pollut. 2013 Sep; 180:101-10. doi: 10.1016/j.envpol.2013.04.039. Epub 2013 Jun 5" |
