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Source apportionment of atmospheric particulate carbon in Las Vegas, Nevada, USA
Green, MC (Green, Mark C.)[ 1 ]; Chow, JC (Chow, Judith C.)[ 1,3 ]; Chang, MCO (Chang, M. -C. Oliver)[ 1,2 ]; Chen, LWA (Chen, L. -W. Antony)[ 1,3 ]; Kuhns, HD (Kuhns, Hampden D.)[ 1 ]; Etyemezian, VR (Etyemezian, Vicken R.)[ 1 ]; Watson, JG (Watson, John G.)[ 1,3 ]
2013-02-28
Source PublicationPARTICUOLOGY
Volume11Issue:1(SI)Pages:110-118
Subtype期刊论文
Abstract

A study was conducted to quantify wintertime contributions of source types to carbonaceous PM2.5 at four urban sites in the Las Vegas Valley, one of the most rapidly growing urban areas in the southwestern United States. Twenty-four hour average ambient samples were collected for mass, ions, elements, organic carbon (OC), elemental carbon (EC), and trace organic markers analysis. Additional measurements were made to determine diurnal patterns in light-absorbing black carbon (BC) as a marker for combustion sources. Carbonaceous PM sources of on-road gasoline vehicles, on-road diesel vehicles, and off-road diesel engines were characterized with their chemical profiles, as well as fuel-based emission factors, using an In-Plume Sampling System. The Effective Variance Chemical Mass Balance (EV-CMB) source apportionment model was applied to the ambient samples collected, using source profiles developed in this study as well as profiles from other relevant studies. Four main sources contributed to PM2.5 carbon within the Las Vegas Valley: (1) paved road dust, (2) on-road gasoline vehicles, (3) residential wood combustion, and (4) on-road diesel vehicles. CMB estimated that on-road mixed fleet gasoline vehicles are the largest source for OC and EC at all the sites. The contribution of paved road dust to both OC and EC was 5-10% at the four sites. On-road diesel vehicles contribute 22% of the OC and 34% of the EC at a site near the city center, which is located immediately downwind of a major freeway. Residential wood combustion is a more important source than on-road diesel vehicles for two residential neighborhood sites. These results are consistent with our conceptual model, and the research methodology may be applied to studying other urban areas.

KeywordSource Characterization Mobile Sources Elemental Carbon Source Apportionment Organic Marker
DOI10.1016/j.partic.2012.09.003
Indexed BySCI ; EI
Language英语
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9912
Collection粉尘与环境研究室
Corresponding AuthorGreen, MC (Green, Mark C.)[ 1 ]
Affiliation1.Division of Atmospheric Sciences, Desert Research Institute, 2215 Raggio Parkway, Reno, NV 89512, USA;
2.California Air Resources Board, 9528 Telstar Ave., El Monte, CA 91731, USA;
3.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, China
Recommended Citation
GB/T 7714
Green, MC ,Chow, JC ,Chang, MCO ,et al. Source apportionment of atmospheric particulate carbon in Las Vegas, Nevada, USA[J]. PARTICUOLOGY,2013,11(1(SI)):110-118.
APA Green, MC .,Chow, JC .,Chang, MCO .,Chen, LWA .,Kuhns, HD .,...&Watson, JG .(2013).Source apportionment of atmospheric particulate carbon in Las Vegas, Nevada, USA.PARTICUOLOGY,11(1(SI)),110-118.
MLA Green, MC ,et al."Source apportionment of atmospheric particulate carbon in Las Vegas, Nevada, USA".PARTICUOLOGY 11.1(SI)(2013):110-118.
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