干旱区生态环境知识资源中心(Arid): African dust and air quality over Spain: Is it only dust that matters?

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DOI	10.1016/j.scitotenv.2019.05.349
	African dust and air quality over Spain: Is it only dust that matters?
	Querol, X.1; Perez, N.1; Reche, C.1; Ealo, M.1; Ripoll, A.1; Tur, J.1; Pandolfi, M.1; Pey, J.2; Salvador, P.3; Moreno, T.1; Alastuey, A.1
通讯作者	Querol, X.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2019
卷号	686 页码:737-752
英文摘要	The 2001-2016 contribution of African dust outbreaks to ambient regional background PM10 and PM2.5 levels over Spain, as well as changes induced in the PMx composition over NE Spain in 2009-2016, were investigated. A clear decrease in PMx dust contributions from the Canary Islands to N Iberia was found. A parallel increase in the PM2.5/PM10 ratio (30% in the Canary Islands to 57% in NW Iberia) was evidenced, probably due to size segregation and the larger relative contribution of the local PMx with increasing distance from Africa. PM1-10 and PM2.5-10 measured in Barcelona during African dust outbreaks (ADOs) were 43-46% higher compared to non-ADO days. The continental background contribution prevailed in terms of both PM1-10 and PM2.5-10 during ADO days (62 and 69%, respectively, and 31 and 27% for non-ADO days). The relative contributions of Al2O3/Fe2O3/CaO to PMx fraction showed that Al(2)O(3 )is a suitable tracer for African dust in our context; while CaO at the urban site is clearly affected by local resuspension, construction and road dust, and Fe2O3 by dust from vehicle brake discs. The results also provide evidence that PM increases during ADOs are caused not only by the mineral dust load, but by an increased accumulation of locally emitted or co-transported anthropogenic pollutants as compared with non-ADO days. Possible causes for this accumulation are discussed. We recommend that further epidemiological studies should explore independently the potential effects of mineral dust and the anthropogenic PM during ADOs, because, at least over SW Europe, not only mineral dust affects the air quality during African dust episodes. (C) 2019 The Authors. Published by Elsevier B.V.
英文关键词	PM10 PM2.5 Desert dust Geochemistry Aerosols
类型	Article
语种	英语
国家	Spain
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000479029700065
WOS关键词	LONG-RANGE TRANSPORT ; WESTERN MEDITERRANEAN BASIN ; REGIONAL BACKGROUND AEROSOLS ; FIRED POWER-STATION ; SAHARAN DUST ; PARTICULATE MATTER ; PARTICLE NUMBER ; CANARY-ISLANDS ; BLACK CARBON ; SOURCE APPORTIONMENT
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218712
作者单位	1.CSIC, Inst Environm Assessment & Water Res IDAEA, C Jordi Girona 18-26, ES-08034 Barcelona, Spain; 2.CSIC, IPE, ARAID, Zaragoza 50059, Spain; 3.CSIC, Joint Res Unit Atmospher Pollut CIEMAT, Dept Environm, Madrid 28040, Spain
推荐引用方式 GB/T 7714	Querol, X.,Perez, N.,Reche, C.,et al. African dust and air quality over Spain: Is it only dust that matters?[J],2019,686:737-752.
APA	Querol, X..,Perez, N..,Reche, C..,Ealo, M..,Ripoll, A..,...&Alastuey, A..(2019).African dust and air quality over Spain: Is it only dust that matters?.SCIENCE OF THE TOTAL ENVIRONMENT,686,737-752.
MLA	Querol, X.,et al."African dust and air quality over Spain: Is it only dust that matters?".SCIENCE OF THE TOTAL ENVIRONMENT 686(2019):737-752.