PAH determination based on a rapid and novel gas purge-microsyringe extraction (GP-MSE) technique in road dust of Shanghai, China: Characterization, source apportionment, and health risk assessment.

Zheng, X; Yang, Y; Liu, M; Yu, Y; Zhou, JL; Li, D

PAH determination based on a rapid and novel gas purge-microsyringe extraction (GP-MSE) technique in road dust of Shanghai, China: Characterization, source apportionment, and health risk assessment.

Zheng, X Yang, Y Liu, M Yu, Y Zhou, JL Li, D

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Publisher:: ELSEVIER SCIENCE BV
Publication Type:: Journal Article
Citation:: Sci Total Environ, 2016, 557-558, pp. 688-696
Issue Date:: 2016-07-01

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Field	Value	Language
dc.contributor.author	Zheng, X
dc.contributor.author	Yang, Y
dc.contributor.author	Liu, M
dc.contributor.author	Yu, Y
dc.contributor.author	Zhou, JL
dc.contributor.author	Li, D
dc.date.accessioned	2022-02-23T21:03:14Z
dc.date.available	2016-03-17
dc.date.available	2022-02-23T21:03:14Z
dc.date.issued	2016-07-01
dc.identifier.citation	Sci Total Environ, 2016, 557-558, pp. 688-696
dc.identifier.issn	0048-9697
dc.identifier.issn	1879-1026
dc.identifier.uri	http://hdl.handle.net/10453/154816
dc.description.abstract	A novel cleanup technique termed as gas purge-microsyringe extraction (GP-MSE) was evaluated and applied for polycyclic aromatic hydrocarbon (PAH) determination in road dust samples. A total of 68 road dust samples covering almost the entire Shanghai area were analyzed for 16 priority PAHs using gas chromatography-mass spectrometry. The results indicate that the total PAH concentrations over the investigated sites ranged from 1.04μg/g to 134.02μg/g dw with an average of 13.84μg/g. High-molecular-weight compounds (4-6 rings PAHs) were significantly dominant in the total mass of PAHs, and accounted for 77.85% to 93.62%. Diagnostic ratio analysis showed that the road dust PAHs were mainly from the mixture of petroleum and biomass/coal combustions. Principal component analysis in conjunction with multiple linear regression indicated that the two major origins of road dust PAHs were vehicular emissions and biomass/fossil fuel combustions, which contributed 66.7% and 18.8% to the total road dust PAH burden, respectively. The concentration of benzo[a]pyrene equivalent (BaPeq) varied from 0.16μg/g to 24.47μg/g. The six highly carcinogenic PAH species (benz(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, benzo(k)fluoranthene, dibenz(a,h)anthracene, and indeno(1,2,3-cd)pyrene) accounted for 98.57% of the total BaPeq concentration. Thus, the toxicity of PAHs in road dust was highly associated with high-molecular-weight compounds.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	ELSEVIER SCIENCE BV
dc.relation.ispartof	Sci Total Environ
dc.relation.isbasedon	10.1016/j.scitotenv.2016.03.124
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Sciences
dc.subject.mesh	Benzo(a)pyrene
dc.subject.mesh	China
dc.subject.mesh	Dust
dc.subject.mesh	Environmental Monitoring
dc.subject.mesh	Environmental Pollutants
dc.subject.mesh	Fluorenes
dc.subject.mesh	Polycyclic Aromatic Hydrocarbons
dc.subject.mesh	Pyrenes
dc.subject.mesh	Risk Assessment
dc.subject.mesh	Vehicle Emissions
dc.subject.mesh	Fluorenes
dc.subject.mesh	Pyrenes
dc.subject.mesh	Benzo(a)pyrene
dc.subject.mesh	Dust
dc.subject.mesh	Environmental Pollutants
dc.subject.mesh	Risk Assessment
dc.subject.mesh	Vehicle Emissions
dc.subject.mesh	Environmental Monitoring
dc.subject.mesh	China
dc.subject.mesh	Polycyclic Aromatic Hydrocarbons
dc.title	PAH determination based on a rapid and novel gas purge-microsyringe extraction (GP-MSE) technique in road dust of Shanghai, China: Characterization, source apportionment, and health risk assessment.
dc.type	Journal Article
utslib.citation.volume	557-558
utslib.location.activity	Netherlands
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/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
dc.date.updated	2022-02-23T21:03:11Z
pubs.publication-status	Published
pubs.volume	557-558

Abstract:

A novel cleanup technique termed as gas purge-microsyringe extraction (GP-MSE) was evaluated and applied for polycyclic aromatic hydrocarbon (PAH) determination in road dust samples. A total of 68 road dust samples covering almost the entire Shanghai area were analyzed for 16 priority PAHs using gas chromatography-mass spectrometry. The results indicate that the total PAH concentrations over the investigated sites ranged from 1.04μg/g to 134.02μg/g dw with an average of 13.84μg/g. High-molecular-weight compounds (4-6 rings PAHs) were significantly dominant in the total mass of PAHs, and accounted for 77.85% to 93.62%. Diagnostic ratio analysis showed that the road dust PAHs were mainly from the mixture of petroleum and biomass/coal combustions. Principal component analysis in conjunction with multiple linear regression indicated that the two major origins of road dust PAHs were vehicular emissions and biomass/fossil fuel combustions, which contributed 66.7% and 18.8% to the total road dust PAH burden, respectively. The concentration of benzo[a]pyrene equivalent (BaPeq) varied from 0.16μg/g to 24.47μg/g. The six highly carcinogenic PAH species (benz(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, benzo(k)fluoranthene, dibenz(a,h)anthracene, and indeno(1,2,3-cd)pyrene) accounted for 98.57% of the total BaPeq concentration. Thus, the toxicity of PAHs in road dust was highly associated with high-molecular-weight compounds.

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