Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/65652
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Civil and Environmental Engineering | en_US |
dc.creator | Lyu, XP | en_US |
dc.creator | Zeng, LW | en_US |
dc.creator | Guo, H | en_US |
dc.creator | Simpson, IJ | en_US |
dc.creator | Ling, ZH | en_US |
dc.creator | Wang, Y | en_US |
dc.creator | Murray, F | en_US |
dc.creator | Louie, PKK | en_US |
dc.creator | Saunders, SM | en_US |
dc.creator | Lam, SHM | en_US |
dc.creator | Blake, DR | en_US |
dc.date.accessioned | 2017-05-22T02:08:59Z | - |
dc.date.available | 2017-05-22T02:08:59Z | - |
dc.identifier.issn | 0269-7491 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/65652 | - |
dc.language.iso | en | en_US |
dc.publisher | Pergamon Press | en_US |
dc.rights | © 2016 Elsevier Ltd. All rights reserved. | en_US |
dc.rights | © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. | en_US |
dc.rights | The following publication Lyu, X. P., Zeng, L. W., Guo, H., Simpson, I. J., Ling, Z. H., Wang, Y., ... & Blake, D. R. (2017). Evaluation of the effectiveness of air pollution control measures in Hong Kong. Environmental pollution, 220, 87-94 is available at https://doi.org/10.1016/j.envpol.2016.09.025 | en_US |
dc.subject | Air pollution | en_US |
dc.subject | Control measures | en_US |
dc.subject | MCM | en_US |
dc.subject | Ozone | en_US |
dc.subject | Photochemical pollution | en_US |
dc.title | Evaluation of the effectiveness of air pollution control measures in Hong Kong | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 87 | en_US |
dc.identifier.epage | 94 | en_US |
dc.identifier.volume | 220 | en_US |
dc.identifier.doi | 10.1016/j.envpol.2016.09.025 | en_US |
dcterms.abstract | From 2005 to 2013, volatile organic compounds (VOCs) and other trace gases were continuously measured at a suburban site in Hong Kong. The measurement data showed that the concentrations of most air pollutants decreased during these years. However, ozone (O3) and total non-methane hydrocarbon levels increased with the rate of 0.23 ± 0.03 and 0.34 ± 0.02 ppbv/year, respectively, pointing to the increasing severity of photochemical pollution in Hong Kong. The Hong Kong government has ongoing programs to improve air quality in Hong Kong, including a solvent program implemented during 2007–2011, and a diesel commercial vehicle (DCV) program since 2007. From before to after the solvent program, the sum of toluene, ethylbenzene and xylene isomers decreased continuously with an average rate of ?99.1 ± 6.9 pptv/year, whereas the sum of ethene and propene increased by 48.2 ± 2.0 pptv/year from before to during the DCV program. Despite this, source apportionment results showed that VOCs emitted from diesel exhaust decreased at a rate of ?304.5 ± 17.7 pptv/year, while solvent related VOCs decreased at a rate of ?204.7 ± 39.7 pptv/year. The gasoline and liquefied petroleum gas vehicle emissions elevated by 1086 ± 34 pptv/year, and were responsible for the increases of ethene and propene. Overall, the simulated O3 rate of increase was lowered from 0.39 ± 0.03 to 0.16 ± 0.05 ppbv/year by the solvent and DCV programs, because O3 produced by solvent usage and diesel exhaust related VOCs decreased (p < 0.05) by 0.16 ± 0.01 and 0.05 ± 0.01 ppbv/year between 2005 and 2013, respectively. However, enhanced VOC emissions from gasoline and LPG vehicles accounted for most of the O3 increment (0.09 ± 0.01 out of 0.16 ± 0.05 ppbv/year) in these years. To maintain a zero O3 increment in 2020 relative to 2010, the lowest reduction ratio of VOCs/NOx was ?1.5 under the NOx reduction of 20–30% which was based on the emission reduction plan for Pearl River Delta region in 2020. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Environmental pollution, Jan. 2017, v. 220, part A, p. 87-94 | en_US |
dcterms.isPartOf | Environmental pollution | en_US |
dcterms.issued | 2017-01 | - |
dc.identifier.isi | WOS:000390736700010 | - |
dc.identifier.scopus | 2-s2.0-85002180263 | - |
dc.identifier.ros | 2016001425 | - |
dc.identifier.eissn | 1873-6424 | en_US |
dc.identifier.rosgroupid | 2016001399 | - |
dc.description.ros | 2016-2017 > Academic research: refereed > Publication in refereed journal | en_US |
dc.description.validate | 201804_a bcma | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | RGC-B1-087 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | National Natural Science Foundation of China | en_US |
dc.description.pubStatus | Published | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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Lyu_Observatisotracers_Mountainous_Site.pdf | Pre-Published version | 1.65 MB | Adobe PDF | View/Open |
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