Effectiveness of replacing catalytic converters in LPG-fueled vehicles in  Hong Kong

Lyu, Xiaopu; Guo, Hai; Simpson, Isobel J.; Meinardi, Simone; Louie, Peter K. K.; Ling, Zhenhao; Wang, Yu; Liu, Ming; Luk, Connie W. Y.; Wang, Nan; Blake, Donald R.

doi:https://doi.org/10.5194/acp-16-6609-2016

Articles | Volume 16, issue 10

https://doi.org/10.5194/acp-16-6609-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-16-6609-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 10

Research article

|

31 May 2016

Research article |

| 31 May 2016

Effectiveness of replacing catalytic converters in LPG-fueled vehicles in Hong Kong

Xiaopu Lyu, Hai Guo, Isobel J. Simpson, Simone Meinardi, Peter K. K. Louie, Zhenhao Ling, Yu Wang, Ming Liu, Connie W. Y. Luk, Nan Wang, and Donald R. Blake

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Final revised paper (published on 31 May 2016)
Supplement to the final revised paper
Preprint (discussion started on 21 Dec 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C11699: 'Replacement of catalytic converters on LPG vehicles', Anonymous Referee #2, 18 Jan 2016
- AC C13362: 'Responses to reviewers' comments', Hai GUO, 29 Mar 2016
RC C12956: 'Impact of replacing catalytic converters n LPG vehicles', Anonymous Referee #3, 03 Mar 2016
- AC C13363: 'Responses to reviewer's comments', Hai GUO, 29 Mar 2016

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Hai GUO on behalf of the Authors (29 Mar 2016) Author's response Manuscript

ED: Referee Nomination & Report Request started (01 Apr 2016) by Alex B. Guenther

RR by Anonymous Referee #2 (02 May 2016)

ED: Publish as is (11 May 2016) by Alex B. Guenther

AR by Hai GUO on behalf of the Authors (18 May 2016)

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Short summary

In this study, the effectiveness of a LPG converter replacement program was evaluated. It was found that LPG-related VOCs and NO_x decreased significantly due to the implementation of the program. Source apportionment also revealed the reduction of VOCs and NO_x in LPG-fueled vehicle exhaust. From before to during the program, O₃ increased slightly, mainly due to the reduction of NO_x in LPG-fueled vehicle exhaust. To retain zero O₃ increment, the lowest reduction ratio of VOCs / NO_x was determined.