Scopus: 1 citations, Web of Science: 1 citations,
Quantifying dry and wet deposition fluxes in two Regions of contrasting African influence : the NE Iberian Peninsula and the Canary Islands
Castillo, Sonia (Institut de Diagnosi Ambiental i Estudis de l'Aigua)
Alastuey, Andrés (Institut de Diagnosi Ambiental i Estudis de l'Aigua)
Cuevas Agulló, Emilio (Instituto Nacional de Meteorología (Espanya). Observatorio Atmosférico de Izaña)
Querol Carceller, Xavier (Institut de Diagnosi Ambiental i Estudis de l'Aigua)
Àvila i Castells, Anna (Centre de Recerca Ecològica i Aplicacions Forestals)

Date: 2017
Abstract: This study considers the role of distance to the African source on the amount of deposition. To this end, dry and wet deposition was measured at a site close to Africa (Santa Cruz de Tenerife in the Canary Islands, SCO) and at a distant site located in NE Spain (La Castanya, Montseny, MSY). Because of the important influence of African influence on the buildup of particles in the atmosphere, we specifically addressed the contribution of North African events (NAF events) compared to other provenances (no-NAF events) in the wet and dry pathways at the two sites. At the site close to Africa, most of the crustal-derived elements were deposited in the dry mode, with NAF events contributing more than no-NAF events. Marine elements, by contrast, were mostly deposited at this site in the wet form with a predominance of no-NAF events. At MSY, wet deposition of SO4–S, NO3–N and NH4–N during NAF events was higher than at the site close to Africa, either in the wet or dry mode. This fact suggests that mineral dust interacts with pollutants, the mineral surface being coated with ammonium, sulphate and nitrate ions as the dust plume encounters polluted air masses in its way from North Africa to the Western Mediterranean. African dust may provide a mechanism of pollution scavenging and our results indicate that this removal is more effective in the wet mode at sites far away from the mineral source.
Note: Número d'acord de subvenció MICINN/CGL2009-13188-C03-01
Note: Número d'acord de subvenció MICINN/CSD2008-00040
Note: Número d'acord de subvenció MEC/CGL2005-07543/CLI
Note: Número d'acord de subvenció AGAUR/2014-SGR33
Rights: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Language: Anglès.
Document: article ; recerca ; publishedVersion
Subject: Mineral dust ; Dry deposition ; Wet deposition ; African intrusions ; Particulate matter ; Anthropogenic pollution
Published in: Atmosphere, Vol. 8, issue 5 (May 2017) , art. 86, ISSN 2073-4433

DOI: 10.3390/atmos8050086


17 p, 2.0 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Experimental sciences > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Articles > Research articles
Articles > Published articles

 Record created 2017-09-06, last modified 2018-10-21



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