干旱区生态环境知识资源中心(Arid): Environmental magnetic fingerprinting of anthropogenic and natural atmospheric deposition over southwestern Europe

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DOI	10.1016/j.atmosenv.2021.118568
	Environmental magnetic fingerprinting of anthropogenic and natural atmospheric deposition over southwestern Europe
	Larrasoana, Juan C.; Pey, Jorge; Zhao, Xiang; Heslop, David; Mochales, Tania; Mata, Pilar; Beamud, Elisabet; Reyes, Jesus; Cerro, Jose C.; Perez, Noemi; Castillo, Sonia
通讯作者	Larrasoana, JC (corresponding author), Inst Geol & Minero Espana, C Manuel Lasala 44, Zaragoza 50006, Spain.
来源期刊	ATMOSPHERIC ENVIRONMENT
ISSN	1352-2310
EISSN	1873-2844
出版年	2021
卷号	261
英文摘要	Here we present an environmental magnetic study of atmospheric deposition collected by a multi-site network in Spain that covers fourteen locations representative of urban, industrial, agricultural, and natural environments across southwestern Europe. We have combined magnetic methods with scanning electron microscopy and geochemical data to characterize the magnetic mineral assemblages of particulate matter across different types of sites and phenomenological scenarios, and to unravel their environmental significance in terms of the most important anthropogenic and natural components of atmospheric deposition. Our results enable identification of two magnetite/maghemite components of anthropogenic origin, derived mostly from vehicular traffic, plus a hematite component associated with a baseline supply of north African dust, in all the studied sites regardless of their type. The ubiquitous presence of anthropogenic magnetite/maghemite particles in pristine natural envi-ronments, albeit in lower concentrations, point to their arrival from neighbouring urban areas through atmo-spheric mixing processes. Samples including particulate matter deposited during distinctively intense periods of north African dust supply are characterized by a fourth component, represented also by coarser-grained he-matite, that is likely derived from a different source area within the Sahara Desert. The concomitant increase observed in these cases in the amounts of magnetite/maghemite particles suggests strongly that part of the magnetite/maghemite load attributed to anthropogenic sources for the rest of the phenomenological scenarios is aeolian in origin. This seems to explain the overall moderate correlation observed between magnetite/maghe-mite contents and proxies for vehicular traffic, and demonstrates the need for caution when interpreting envi-ronmental magnetic proxies for magnetite/maghemite abundances in terms of anthropogenic loads. This is especially the case in southern European cities where a steady supply of north African dust occurs throughout most of the year. Our results show a good correlation between hematite abundances and geochemical proxies for north African dust, which collectively delineate broad maxima during the summer and large peaks during distinctive dust breakouts. Thus, environmental magnetic proxies of hematite abundances can be used to monitor the contribution of natural sources to atmospheric deposition.
英文关键词	Atmospheric deposition Particulate matter Environmental magnetism Pollution North African dust Spain
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000687404100003
WOS关键词	ACQUISITION CURVES ; DUST OUTBREAKS ; AFRICAN DUST ; POLLUTION ; QUANTIFICATION ; COMPONENTS ; MINERALOGY ; PARTICLES ; AEROSOLS ; LEAVES
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362653
作者单位	[Larrasoana, Juan C.; Mochales, Tania] Inst Geol & Minero Espana, C Manuel Lasala 44, Zaragoza 50006, Spain; [Pey, Jorge] Aragonese Fdn Res & Dev ARAID, Av Ranillas 1-D, Zaragoza 50018, Spain; [Pey, Jorge] CSIC, Inst Pirenaico Ecol, Av Montanana 1005, Zaragoza 50059, Spain; [Zhao, Xiang; Heslop, David] Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 2601, Australia; [Mata, Pilar; Reyes, Jesus] Inst Geol & Minero Espana, C La Calera 1, Tres Cantos 28760, Spain; [Beamud, Elisabet] CSIC, Paleomagnet Lab CCiTUB Geo3Bcn, Geosci Barcelona, Barcelona 08028, Spain; [Cerro, Jose C.] Univ Illes Balears, Carretera Valldemossa Km7-4, Palma De Mallorca 07122, Spain; [Perez, Noemi] CSIC, Inst Diagnost Ambiental & Estudios Agua, C Jordi Girona 18-26, Barcelona 08028, Spain; [Castillo, Sonia] Univ Granada, Andalusian Inst Earth Syst Res IISTA CEAMA, Av Mediterraneo, Granada 18071, Spain; [Castillo, Sonia] Univ Granada, Dept Appl Phys, Av Fuente Nueva, Granada 18071, Spain
推荐引用方式 GB/T 7714	Larrasoana, Juan C.,Pey, Jorge,Zhao, Xiang,et al. Environmental magnetic fingerprinting of anthropogenic and natural atmospheric deposition over southwestern Europe[J],2021,261.
APA	Larrasoana, Juan C..,Pey, Jorge.,Zhao, Xiang.,Heslop, David.,Mochales, Tania.,...&Castillo, Sonia.(2021).Environmental magnetic fingerprinting of anthropogenic and natural atmospheric deposition over southwestern Europe.ATMOSPHERIC ENVIRONMENT,261.
MLA	Larrasoana, Juan C.,et al."Environmental magnetic fingerprinting of anthropogenic and natural atmospheric deposition over southwestern Europe".ATMOSPHERIC ENVIRONMENT 261(2021).