Oxidative potential of gas phase combustion emissions - An underestimated and potentially harmful component of air pollution from combustion processes

Stevanovic, S; Vaughan, A; Hedayat, F; Salimi, F; Rahman, MM; Zare, A; Brown, RA; Brown, RJ; Wang, H; Zhang, Z; Wang, X; Bottle, SE; Yang, IA; Ristovski, ZD

Oxidative potential of gas phase combustion emissions - An underestimated and potentially harmful component of air pollution from combustion processes

Stevanovic, S Vaughan, A

Hedayat, F Salimi, F Rahman, MM Zare, A Brown, RA Brown, RJ Wang, H Zhang, Z Wang, X Bottle, SE Yang, IA Ristovski, ZD

Permalink

Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Atmospheric Environment, 2017, 158, pp. 227-235
Issue Date:: 2017-01-01

Closed Access

	Filename	Description	Size
	1-s2.0-S1352231017302108-main.pdf		1.18 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Stevanovic, S
dc.contributor.author	Vaughan, A https://orcid.org/0000-0001-5890-7877
dc.contributor.author	Hedayat, F
dc.contributor.author	Salimi, F
dc.contributor.author	Rahman, MM
dc.contributor.author	Zare, A
dc.contributor.author	Brown, RA
dc.contributor.author	Brown, RJ
dc.contributor.author	Wang, H
dc.contributor.author	Zhang, Z
dc.contributor.author	Wang, X
dc.contributor.author	Bottle, SE
dc.contributor.author	Yang, IA
dc.contributor.author	Ristovski, ZD
dc.date.accessioned	2022-09-02T02:50:48Z
dc.date.available	2022-09-02T02:50:48Z
dc.date.issued	2017-01-01
dc.identifier.citation	Atmospheric Environment, 2017, 158, pp. 227-235
dc.identifier.issn	1352-2310
dc.identifier.issn	1873-2844
dc.identifier.uri	http://hdl.handle.net/10453/161207
dc.description.abstract	The oxidative potential (OP) of the gas phase is an important and neglected aspect of environmental toxicity. Whilst prolonged exposure to particulate matter (PM) associated reactive oxygen species (ROS) have been shown to lead to negative health effects, the potential for compounds in gas phase to cause similar effects is yet to be understood. In this study we describe: the significance of the gas phase OP generated through vehicle emissions; discuss the origin and evolution of species contributing to measured OP; and report on the impact of gas phase OP on human lung cells. The model aerosol for this study was exhaust emitted from a Euro III Common-rail diesel engine fuelled with different blends of diesel and biodiesel. The gas phase of these emissions was found to be potentially as hazardous as the particle phase. Fuel oxygen content was found to negatively correlate with the gas phase OP, and positively correlate with particle phase OP. This signifies a complex interaction between reactive species present in gas and particle phase. Furthermore, this interaction has an overarching effect on the OP of both particle and gas phase, and therefore the toxicity of combustion emissions.
dc.language	English
dc.publisher	Elsevier
dc.relation.ispartof	Atmospheric Environment
dc.relation.isbasedon	10.1016/j.atmosenv.2017.03.041
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0104 Statistics, 0401 Atmospheric Sciences, 0907 Environmental Engineering
dc.subject.classification	Meteorology & Atmospheric Sciences
dc.title	Oxidative potential of gas phase combustion emissions - An underestimated and potentially harmful component of air pollution from combustion processes
dc.type	Journal Article
utslib.citation.volume	158
utslib.for	0104 Statistics
utslib.for	0401 Atmospheric Sciences
utslib.for	0907 Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-09-02T02:50:47Z
pubs.publication-status	Published
pubs.volume	158

Abstract:

The oxidative potential (OP) of the gas phase is an important and neglected aspect of environmental toxicity. Whilst prolonged exposure to particulate matter (PM) associated reactive oxygen species (ROS) have been shown to lead to negative health effects, the potential for compounds in gas phase to cause similar effects is yet to be understood. In this study we describe: the significance of the gas phase OP generated through vehicle emissions; discuss the origin and evolution of species contributing to measured OP; and report on the impact of gas phase OP on human lung cells. The model aerosol for this study was exhaust emitted from a Euro III Common-rail diesel engine fuelled with different blends of diesel and biodiesel. The gas phase of these emissions was found to be potentially as hazardous as the particle phase. Fuel oxygen content was found to negatively correlate with the gas phase OP, and positively correlate with particle phase OP. This signifies a complex interaction between reactive species present in gas and particle phase. Furthermore, this interaction has an overarching effect on the OP of both particle and gas phase, and therefore the toxicity of combustion emissions.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/161207