A remote sensing emissions monitoring programme reduces emissions of gasoline and LPG vehicles

Organ, B; Huang, Y; Zhou, JL; Surawski, NC; Yam, YS; Mok, WC; Hong, G

A remote sensing emissions monitoring programme reduces emissions of gasoline and LPG vehicles

Organ, B Huang, Y

Zhou, JL

Surawski, NC

Yam, YS Mok, WC Hong, G

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Publication Type:: Journal Article
Citation:: Environmental Research, 2019, 177
Issue Date:: 2019-10-01

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Field	Value	Language
dc.contributor.author	Organ, B	en_US
dc.contributor.author	Huang, Y https://orcid.org/0000-0001-9800-8788	en_US
dc.contributor.author	Zhou, JL https://orcid.org/0000-0003-1393-1608	en_US
dc.contributor.author	Surawski, NC https://orcid.org/0000-0003-2584-1044	en_US
dc.contributor.author	Yam, YS	en_US
dc.contributor.author	Mok, WC	en_US
dc.contributor.author	Hong, G https://orcid.org/0000-0002-1905-1161	en_US
dc.date.available	2021-08-12T19:00:43Z
dc.date.issued	2019-10-01	en_US
dc.identifier.citation	Environmental Research, 2019, 177	en_US
dc.identifier.issn	0013-9351	en_US
dc.identifier.uri	http://hdl.handle.net/10453/135664
dc.description.abstract	© 2019 Elsevier Inc. Vehicle emissions are a major source of air pollution in Hong Kong affecting human health. A ‘strengthened emissions control of gasoline and liquefied petroleum gas (LPG) vehicles’ programme has been operating in Hong Kong since September 2014 utilising remote sensing (RS) technology. RS has provided measurement data to successfully identify high emitting gasoline and LPG vehicles which then need to be repaired or removed from the on-road vehicle fleet. This paper aims to evaluate the effectiveness of this globally unique RS monitoring programme. A large RS dataset of 2,144,422 records was obtained covering the period from 6th January 2012 to 30th December 2016, of which 1,206,762 records were valid and suitable for further investigation. The results show that there have been significant reductions of emissions factors (EF) for 40.5% HC, 45.3% CO and 29.6% NO for gasoline vehicles. Additionally, EF reductions of 48.4% HC, 41.1% CO and 58.7% NO were achieved for LPG vehicles. For the combined vehicle fleet, the reductions for HC, CO and NO were 55.9%, 50.5% and 60.9% respectively during this survey period. The findings demonstrate that the strengthened emissions control programme utilising RS has been very effective in identifying high emitting vehicles for repair so as to reduce the emissions from gasoline and LPG vehicles under real driving.	en_US
dc.relation.ispartof	Environmental Research	en_US
dc.relation.isbasedon	10.1016/j.envres.2019.108614	en_US
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Toxicology	en_US
dc.title	A remote sensing emissions monitoring programme reduces emissions of gasoline and LPG vehicles	en_US
dc.type	Journal Article
utslib.citation.volume	177	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	05 Environmental Sciences	en_US
utslib.for	06 Biological Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	open_access	*
pubs.publication-status	Published	en_US
pubs.volume	177	en_US

Abstract:

© 2019 Elsevier Inc. Vehicle emissions are a major source of air pollution in Hong Kong affecting human health. A ‘strengthened emissions control of gasoline and liquefied petroleum gas (LPG) vehicles’ programme has been operating in Hong Kong since September 2014 utilising remote sensing (RS) technology. RS has provided measurement data to successfully identify high emitting gasoline and LPG vehicles which then need to be repaired or removed from the on-road vehicle fleet. This paper aims to evaluate the effectiveness of this globally unique RS monitoring programme. A large RS dataset of 2,144,422 records was obtained covering the period from 6th January 2012 to 30th December 2016, of which 1,206,762 records were valid and suitable for further investigation. The results show that there have been significant reductions of emissions factors (EF) for 40.5% HC, 45.3% CO and 29.6% NO for gasoline vehicles. Additionally, EF reductions of 48.4% HC, 41.1% CO and 58.7% NO were achieved for LPG vehicles. For the combined vehicle fleet, the reductions for HC, CO and NO were 55.9%, 50.5% and 60.9% respectively during this survey period. The findings demonstrate that the strengthened emissions control programme utilising RS has been very effective in identifying high emitting vehicles for repair so as to reduce the emissions from gasoline and LPG vehicles under real driving.

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http://hdl.handle.net/10453/135664