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DOI	10.1016/j.atmosenv.2020.118006
	Effects of urban dust emissions on fine and coarse PM levels and composition
	Kakavas S.; Pandis S.N.
发表日期	2021
ISSN	1352-2310
卷号	246
英文摘要	Simulation of the concentration of urban dust and its interactions with other inorganic components of particulate matter (nitrate, ammonium, sulfate) remains a major modeling challenge. In this study the chemical transport model PMCAMx is applied over Europe during the EUCAARI 2008 summer campaign. The default emission inventory leads to significant underprediction of PM10 levels in both urban and rural areas. We test the hypothesis that this is due to a large extent to an underprediction of urban dust by increasing the corresponding emissions by a factor of ten. This leads to improved PM10 predictions in all sites in Europe and especially in urban areas. The PM10 fractional bias of the model decreased by 23% and the fractional error by 13%. Average predicted PM1 nitrate decreases on average by 20% over the modeling domain due to the increased urban dust. Fine nitrate reductions of 0.5–1 μg m−3 are predicted for areas of the Netherlands, Belgium, France and United Kingdom. Fine ammonium and sulfate also decrease by 9% and 7.5% respectively, when the higher urban dust emissions are used. At the same time predicted coarse nitrate concentrations increase on average by 10% with absolute increases of 1.2 μg m−3 in the Netherlands and Belgium and 1 μg m−3 in Paris. Coarse ammonium and sulfate increase by 16% and 6% respectively due to the higher levels of urban dust. © 2020 Elsevier Ltd
关键词	Chemical transport model Dust Europe Nitrate PM10
语种	英语
scopus关键词	Dust; Nitrates; Sulfur compounds; Chemical transport models; Emission inventories; Fractional errors; Inorganic components; Nitrate concentration; Nitrate reduction; Particulate Matter; Urban and rural areas; Urban growth; ammonia; calcium ion; chloride; magnesium ion; nitrate; potassium ion; sodium ion; sulfate; water; ammonium; chemical composition; concentration (composition); dust; emission inventory; error analysis; nitrate; particulate matter; reduction; rural area; sulfate; urban area; air pollution; Belgium; chemical composition; chemical model; concentration (parameter); controlled study; dust; Europe; France; Netherlands; particulate matter 10; priority journal; reduction (chemistry); rural area; simulation; United Kingdom; urban area; Belgium; France; Ile de France; Netherlands; Paris; United Kingdom; Ville de Paris
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248731
作者单位	Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas (FORTH), Patras, 26504, Greece; Department of Chemical Engineering, University of Patras, Patras, 26500, Greece; Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, United States
推荐引用方式 GB/T 7714	Kakavas S.,Pandis S.N.. Effects of urban dust emissions on fine and coarse PM levels and composition[J],2021,246.
APA	Kakavas S.,&Pandis S.N..(2021).Effects of urban dust emissions on fine and coarse PM levels and composition.ATMOSPHERIC ENVIRONMENT,246.
MLA	Kakavas S.,et al."Effects of urban dust emissions on fine and coarse PM levels and composition".ATMOSPHERIC ENVIRONMENT 246(2021).