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Vehicular emission of volatile organic compounds (VOCs) from a tunnel study in Hong Kong
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ho, Kinfai Lee, Shun Ho, Wingkei Blake, Donald R. Cheng, Yan Li, Ying Shu Ho, Steven Sai Hang Fung, Kochy K. Louie, Peter K. K. Park, Daesoo |
| Copyright Year | 2009 |
| Abstract | Vehicle emissions of volatile organic compounds (VOCs) were determined at the Shing Mun Tunnel, Hong Kong in summer and winter of 2003. One hundred and ten VOCs were quantified in this study. The average concentra- tion of the total measured VOCs at the inlet and outlet of the tunnel were 81 250 pptv and 117 850 pptv, respectively. Among the 110 compounds, ethene, ethyne and toluene were the most abundant species in the tunnel. The total measured VOC emission factors ranged from 67 mg veh 1 km 1 to 148 mg veh 1 km 1 , with an average of 115 mg veh 1 km 1 . The five most abundant VOCs observed in the tunnel were, in decreasing order, ethene, toluene, n-butane, propane and i-pentane. These five most abundant species contributed over 38% of the total measured VOCs emitted. The high propane and n-butane emissions were found to be associated with liq- uefied petroleum gas (LPG)-fueled taxis. Fair correlations were observed between marker species (ethene, i-pentane, n-nonane, and benzene, toluene, ethylbenzene and xylenes - BTEX) with fractions of gasoline-fueled or diesel-fueled ve- hicles. Moreover, ethene, ethyne, and propene are the key species that were abundant in the tunnel but not in gaso- line vapors or LPG. The ozone formation potential from the VOCs in Hong Kong was evaluated by the maximum incre- ment reactivity (MIR). It was found to be 568 mg of ozone |
| Starting Page | 7491 |
| Ending Page | 7504 |
| Page Count | 14 |
| File Format | PDF HTM / HTML |
| DOI | 10.5194/acp-9-7491-2009 |
| Volume Number | 9 |
| Alternate Webpage(s) | https://cloudfront.escholarship.org/dist/prd/content/qt0280q6v9/qt0280q6v9.pdf?t=nbcdr4 |
| Alternate Webpage(s) | http://ira.lib.polyu.edu.hk/bitstream/10397/6639/1/Ho_Vehicular_Emission_VOCs.pdf |
| Alternate Webpage(s) | https://www.atmos-chem-phys.net/9/7491/2009/acp-9-7491-2009.pdf |
| Alternate Webpage(s) | https://doi.org/10.5194/acp-9-7491-2009 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
