Chemical and toxicological characterization of particulate emissions from diesel vehicles.

Wang, B; Lau, Y-S; Huang, Y; Organ, B; Chuang, H-C; Ho, SSH; Qu, L; Lee, S-C; Ho, K-F

Chemical and toxicological characterization of particulate emissions from diesel vehicles.

Wang, B Lau, Y-S Huang, Y

Organ, B

Chuang, H-C Ho, SSH Qu, L Lee, S-C Ho, K-F

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Journal of hazardous materials, 2020, 405, pp. 124613
Issue Date:: 2020-11-18

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Field	Value	Language
dc.contributor.author	Wang, B
dc.contributor.author	Lau, Y-S
dc.contributor.author	Huang, Y https://orcid.org/0000-0001-9800-8788
dc.contributor.author	Organ, B https://orcid.org/0000-0003-3769-2410
dc.contributor.author	Chuang, H-C
dc.contributor.author	Ho, SSH
dc.contributor.author	Qu, L
dc.contributor.author	Lee, S-C
dc.contributor.author	Ho, K-F
dc.date.accessioned	2020-12-30T22:48:53Z
dc.date.available	2020-11-16
dc.date.available	2020-12-30T22:48:53Z
dc.date.issued	2020-11-18
dc.identifier.citation	Journal of hazardous materials, 2020, 405, pp. 124613
dc.identifier.issn	0304-3894
dc.identifier.issn	1873-3336
dc.identifier.uri	http://hdl.handle.net/10453/145005
dc.description.abstract	This paper presents a detailed chemical and toxicological characterization of the diesel particulate matter (PM) emitted from diesel vehicles running on a chassis dynamometer under different driving conditions. Chemical analyses were performed to characterize the contents of organic carbon (OC), elemental carbon (EC), and 31 polycyclic aromatic hydrocarbons (PAHs) in the collected PM samples. The OC-EC analysis results revealed that PM emissions from diesel vehicles in this study were dominated by OC and that the emission of vehicles equipped with diesel particulate filters had high OC/EC ratios. The PAH analysis results revealed that 4- and 5-ring PAHs were the dominant PAHs in the OC fraction of the PM samples. Particle toxicity was evaluated through three toxicological markers in human A549 cells, namely (1) acellular 2,7-dichlorofluorescein (DCFH) for oxidative potential, (2) interleukin-6 (IL-6) for inflammation, and (3) glutathione (GSH) for antioxidation after exposure. Statistical analyses revealed that vehicle sizes have statistically significant effects on the concentrations of the markers. Correlation analysis between PAHs and toxicological markers revealed that significant correlations existed between specific compounds and markers. Our results can be used as a reference by policy makers to formulate emission control strategies and as a dataset for other modeling studies.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Elsevier BV
dc.relation.ispartof	Journal of hazardous materials
dc.relation.isbasedon	10.1016/j.jhazmat.2020.124613
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	03 Chemical Sciences, 05 Environmental Sciences, 09 Engineering
dc.subject.classification	Strategic, Defence & Security Studies
dc.title	Chemical and toxicological characterization of particulate emissions from diesel vehicles.
dc.type	Journal Article
utslib.citation.volume	405
utslib.location.activity	Netherlands
utslib.for	090507 Transport Engineering
utslib.for	03 Chemical Sciences
utslib.for	05 Environmental Sciences
utslib.for	09 Engineering
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
utslib.copyright.status	open_access	*
utslib.copyright.embargo	2023-03-05T00:00:00+1000Z
dc.date.updated	2020-12-30T22:48:27Z
pubs.publication-status	Published
pubs.volume	405

Abstract:

This paper presents a detailed chemical and toxicological characterization of the diesel particulate matter (PM) emitted from diesel vehicles running on a chassis dynamometer under different driving conditions. Chemical analyses were performed to characterize the contents of organic carbon (OC), elemental carbon (EC), and 31 polycyclic aromatic hydrocarbons (PAHs) in the collected PM samples. The OC-EC analysis results revealed that PM emissions from diesel vehicles in this study were dominated by OC and that the emission of vehicles equipped with diesel particulate filters had high OC/EC ratios. The PAH analysis results revealed that 4- and 5-ring PAHs were the dominant PAHs in the OC fraction of the PM samples. Particle toxicity was evaluated through three toxicological markers in human A549 cells, namely (1) acellular 2,7-dichlorofluorescein (DCFH) for oxidative potential, (2) interleukin-6 (IL-6) for inflammation, and (3) glutathione (GSH) for antioxidation after exposure. Statistical analyses revealed that vehicle sizes have statistically significant effects on the concentrations of the markers. Correlation analysis between PAHs and toxicological markers revealed that significant correlations existed between specific compounds and markers. Our results can be used as a reference by policy makers to formulate emission control strategies and as a dataset for other modeling studies.

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http://hdl.handle.net/10453/145005