Title: Characterisation of TSP and PM2.5 at Izana and Sta. Cruz de Tenerife (Canary Islands, Spain) During a Saharan Dust Episode (July 2002)
Authors: ALASTUEY AndrésQUEROL XavierCASTILLO SoniaAVILA AnnaESTARELLAS CatalinaTORRES CarlosEXPOSITO FranciscoGARCIA OmairaDIAZ J. PedroVAN DINGENEN RITAPUTAUD JEAN-PHILIPPE
Citation: ATMOSPHERIC ENVIRONMENT vol. 39 no. 26 p. 4715-4728
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2005
JRC N°: JRC30744
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC30744
Type: Articles in Journals
Abstract: A strong African dust outbreak episode affecting the Canary Islands has been characterised at the Izana Observatory, and in the Marine Boundary Layer (MBL). A complete chemical and mineralogical characterisation has been performed for TSP and PM2.5 collected simultaneously at both sites. Saharan dust is characterised by relatively high levels of some trace elements such as As, Ba, Cr, Li, Mn, Ni, Sr, and Zn. At the MBL, the high concentration of coarse mineral and marine aerosols particles, the high RH, as well as the strong compression of the MBL during the Saharan episode, favour the reaction of gaseous pollutants of local origin, with the natural aerosols leading to the formation of high concentrations of secondary coarse Ca and / or Na sulphates and nitrates, as estimated from the ionic balance of concentrations of soluble ions.
JRC Institute:Institute for Environment and Sustainability

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