Arid
DOI10.10164/j.atmosenv.2018.08.013
Atmospheric deposition of particulate matter between Algeria and France: Contribution of long and short-term sources
Lequy, Emeline1,4; Avila, Anna2; Kaci, Malika Boudiaf Nait3; Turpault, Marie-Pierre1
通讯作者Turpault, Marie-Pierre
来源期刊ATMOSPHERIC ENVIRONMENT
ISSN1352-2310
EISSN1873-2844
出版年2018
卷号191页码:181-193
英文摘要

Large worldwide sources of dust, such as the Saharan desert, play a key role in the amounts and composition of atmospheric particulate deposition (APD), but their relative contribution compared to other sources remain unclear. Our study aimed to apportion Saharan, regional, and anthropogenic sources of APD in three sampling along a long transect affected by Saharan outbreaks. We quantified total APD, and analyzed its mineralogical and chemical composition between 2011 and 2012.. Strong markers of Saharan dust, such as large amounts of APD and of a low Al2O3:CaO ratio allowed identifying clear periods influenced by Saharan outbreaks. Nitrogen and phosphorus reflected soil affected by agricultural practices, while Cd, Pb, Sb and Sn tracked traffic and industrial sources-as confirmed by enrichment factors. Then, we designed a conceptual model including sensitivity analyses to estimate the contribution of unanalyzed (10-11%, likely chlorites or sulfates), organic (34-41%), anthropogenic (11-22%), mineral-regional (5-25%) and mineral-Saharan (10-38%) matter over our entire study period. Our study shows the rapidly decreasing contribution of Saharan outbreaks-and the decreasing flux of Ca and Mg, from 40 to 0.4 kg.ha(-1) over the study period between Algeria and France. Yet, Saharan outbreaks were still noticeable in APD at a site 1500 km away. Our study also shows the large relative contribution of organic and anthropogenic sources to APD in the three sampling sites, and their possible influence on nutrient budgets.


英文关键词Atmospheric deposition Mineralogy Chemical composition Enrichment factors Source apportionment
类型Article
语种英语
国家France ; Spain ; Algeria
收录类别SCI-E
WOS记录号WOS:000447579800020
WOS关键词SAHARAN DUST ; CHEMICAL-COMPOSITION ; MINERAL-DUST ; AEOLIAN DUST ; RADIATIVE PROPERTIES ; NORTHEASTERN SPAIN ; NUTRIENT INPUTS ; DESERT DUST ; RED RAINS ; TRANSPORT
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/2XILL650/207942
作者单位1.INRA, Biogeochim Ecosyst Forestiers, F-54280 Champenoux, France;
2.Univ Autonoma Barcelona, CREAF, Bellaterra 08193, Spain;
3.Univ Mouloud Mammeri, Lab Ressources Nat, Fac Sci Biol & Sci Agron, Tizi Ouzou, Algeria;
4.Hop Paul Brousse, INSERM, UMS 11, 16 Ave Paul Vaillant Couturier, F-94807 Villejuif, France
推荐引用方式
GB/T 7714
Lequy, Emeline,Avila, Anna,Kaci, Malika Boudiaf Nait,et al. Atmospheric deposition of particulate matter between Algeria and France: Contribution of long and short-term sources[J],2018,191:181-193.
APA Lequy, Emeline,Avila, Anna,Kaci, Malika Boudiaf Nait,&Turpault, Marie-Pierre.(2018).Atmospheric deposition of particulate matter between Algeria and France: Contribution of long and short-term sources.ATMOSPHERIC ENVIRONMENT,191,181-193.
MLA Lequy, Emeline,et al."Atmospheric deposition of particulate matter between Algeria and France: Contribution of long and short-term sources".ATMOSPHERIC ENVIRONMENT 191(2018):181-193.
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