Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4214
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dc.contributor.authorallCalabrese, S.; Università di Palermo, Dipartimento CFTAen
dc.contributor.authorallParello, F.; Università di Palermo, Dipartimento CFTAen
dc.contributor.authorallD'Alessandro, W.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italiaen
dc.contributor.authorallAiuppa, A.; Università di Palermo, Dipartimento CFTAen
dc.contributor.editorallDi Stefano, A.; Università di Catania - Dip. Scienze Geologicheen
dc.contributor.editorallManiscalco, R.; Università di Catania - Dip. Scienze Geologicheen
dc.contributor.editorallSturiale, G.; Università di Catania - Dip. Scienze Geologicheen
dc.date.accessioned2008-11-24T11:01:32Zen
dc.date.available2008-11-24T11:01:32Zen
dc.date.issued2008-06-03en
dc.identifier.urihttp://hdl.handle.net/2122/4214en
dc.description.abstractMount Etna is a huge volcano in the Mediterranean basin and is located in the eastern part of Sicily. It is considered to be, on the long-term average, the major atmospheric point source of many environmental harmful compounds. Their emission occurs either through continuous passive degassing from open-conduit activity or through sporadic paroxysmal eruptive activity, in the form of gases, aerosols or particulate. Volcanic volatiles and aerosol emitted into the atmosphere fall on the Earth’s surface as wet or dry deposition, and can influence the environment both at local and regional scale. To estimate the environmental impact of magma-derived trace metals and their depositions processes, bulk deposition samples have been collected approximately fortnightly, using a network of 5 rain gauges located at various altitudes on the upper flanks close to the summit craters, from April 2006 to December 2007. Samples were analyzed for the main chemicalphysical parameters (electric conductivity and pH) and for major and trace elements concentrations. The data obtained clearly show that the volcanic contribution is always prevailing in the sampling site closest to the summit craters (∼1.5 km). In the distal sites (5.5-10 km from the summit) and downwind of the summit craters, the volcanic contribution is also detectable but often overwhelmed by anthropogenic or other natural (seawater spray, geogenic dust) contributions. Volcanogenic contribution may derive from both dry and wet deposition of gases and aerosols from the volcanic plume, but sometimes also from leaching of freshly emitted volcanic ashes. In fact, in our background site (7.5 km in the upwind direction), after an ash deposition event high concentration of lithophiles elements (Si, Al, Fe, Ti) have been measured. Sulphur, Chlorine and Fluorine, represent the main constituents that characterize the volcanic contribution in the bulk deposition on Mt. Etna, although high concentrations of many trace elements (Si, Al, Fe, Ti, Cu, As, Rb, Pb, Tl, Cd, Cr, U and Ag) display, in the site most exposed to the volcanic emissions, average concentrations of about two orders of magnitude higher than those measured in the background site (Mount Intraleo).en
dc.language.isoEnglishen
dc.publisher.nameTipografia Universitaria Cataniaen
dc.relation.ispartofTethys to Mediterranean, a journey of geological discoveryen
dc.subjectMt. Etnaen
dc.subjecttrace elementsen
dc.subjectrainwateren
dc.titleMount Etna the major point source of metals in the Mediterranean basin: impact on atmospheric precipitationen
dc.typeOral presentationen
dc.description.statusPublisheden
dc.subject.INGV01. Atmosphere::01.01. Atmosphere::01.01.07. Volcanic effectsen
dc.subject.INGV03. Hydrosphere::03.03. Physical::03.03.01. Air/water/earth interactionsen
dc.subject.INGV03. Hydrosphere::03.04. Chemical and biological::03.04.03. Chemistry of watersen
dc.description.ConferenceLocationCatania, Italyen
dc.description.obiettivoSpecifico4.5. Degassamento naturaleen
dc.description.fulltextopenen
dc.contributor.authorCalabrese, S.en
dc.contributor.authorParello, F.en
dc.contributor.authorD'Alessandro, W.en
dc.contributor.authorAiuppa, A.en
dc.contributor.departmentUniversità di Palermo, Dipartimento CFTAen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italiaen
dc.contributor.departmentUniversità di Palermo, Dipartimento CFTAen
dc.contributor.editorDi Stefano, A.en
dc.contributor.editorManiscalco, R.en
dc.contributor.editorSturiale, G.en
dc.contributor.editordepartmentUniversità di Catania - Dip. Scienze Geologicheen
dc.contributor.editordepartmentUniversità di Catania - Dip. Scienze Geologicheen
dc.contributor.editordepartmentUniversità di Catania - Dip. Scienze Geologicheen
item.openairetypeOral presentation-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptDipartimento C.F.T.A., Palermo University, Palermo/Italy-
crisitem.author.deptUniversità di Palermo, DiSTeM, Italy-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.orcid0000-0003-0249-6663-
crisitem.author.orcid0000-0003-1724-0388-
crisitem.author.orcid0000-0002-0254-6539-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent01. Atmosphere-
crisitem.classification.parent03. Hydrosphere-
crisitem.classification.parent03. Hydrosphere-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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