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DOI	10.3934/environsci.2016.1.115
	Chemical mass balance source apportionment of fine and PM10 in the Desert Southwest, USA
	Clements, Andrea L.; Fraser, Matthew P.; Herckes, Pierre; Solomon, Paul A.
通讯作者	Fraser, MP
来源期刊	AIMS ENVIRONMENTAL SCIENCE
ISSN	2372-0344
EISSN	2372-0352
出版年	2016
卷号	3 期号:1 页码:115-132
英文摘要	The Desert Southwest Coarse Particulate Matter Study was undertaken in Pinal County, Arizona, to better understand the origin and impact of sources of fine and coarse particulate matter (PM) in rural, arid regions of the U.S. southwestern desert. The desert southwest experiences some of the highest PM10 mass concentrations in the country. To augment previously reported results, 6-week aggregated organic speciation data that included ambient concentrations of n-alkanes, polycyclic aromatic hydrocarbons, organic acids, and saccharides were used in chemical mass balance modeling (CMB). A set of re-suspended soil samples were analyzed for specific marker species to provide locally-appropriate source profiles for the CMB analysis. These profiles, as well as previously collected plant and fungal spore profiles from the region, were combined with published source profiles for other relevant sources and used in the CMB analysis. The six new region-specific source profiles included both organic and inorganic species for four crustal material sources, one plant detritus source, and one fungal spore source. Results indicate that up to half of the ambient PM2.5 was apportioned to motor vehicles with the highest regional contribution observed in the small urban center of Casa Grande. Daily levels of apportioned crustal material accounted for up to 50% of PM2.5 mass with the highest contributions observed at the sites closest to active agricultural areas. Apportioned secondary PM, biomass burning, and road dust typically contributed less than 35% as a group to the apportioned PM2.5 mass. Crustal material was the primary source apportioned to PM10 and accounted for between 50-90% of the apportioned mass. Of the other sources apportioned to PM10, motor vehicles and road dust were the largest contributors at the urban and one of the rural sites, whereas road dust and meat cooking operations were the largest contributors at the other rural site.
英文关键词	organic speciation crustal material source profiles
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000372125800007
WOS关键词	AIR-POLLUTION SOURCES ; PARTICULATE MATTER ; ORGANIC-COMPOUNDS ; EMISSIONS ; EVOLUTION ; SAMPLES ; C-1
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	Arizona State University ; Colorado State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/331504
作者单位	[Clements, Andrea L.] Rice Univ, Dept Civil & Environm Engn, Houston, TX 77005 USA; [Clements, Andrea L.] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA; [Fraser, Matthew P.] Arizona State Univ, Sch Sustainable Engn & Built Environm, Tempe, AZ 85287 USA; [Herckes, Pierre] Arizona State Univ, Sch Mol Sci, Tempe, AZ 85287 USA; [Solomon, Paul A.] US EPA, Natl Exposure Res Lab, Off Res & Dev, Las Vegas, NV 89119 USA
推荐引用方式 GB/T 7714	Clements, Andrea L.,Fraser, Matthew P.,Herckes, Pierre,et al. Chemical mass balance source apportionment of fine and PM10 in the Desert Southwest, USA[J]. Arizona State University, Colorado State University,2016,3(1):115-132.
APA	Clements, Andrea L.,Fraser, Matthew P.,Herckes, Pierre,&Solomon, Paul A..(2016).Chemical mass balance source apportionment of fine and PM10 in the Desert Southwest, USA.AIMS ENVIRONMENTAL SCIENCE,3(1),115-132.
MLA	Clements, Andrea L.,et al."Chemical mass balance source apportionment of fine and PM10 in the Desert Southwest, USA".AIMS ENVIRONMENTAL SCIENCE 3.1(2016):115-132.