Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/12689
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dc.date.accessioned2019-09-09T10:06:42Zen
dc.date.available2019-09-09T10:06:42Zen
dc.date.issued2019-07en
dc.identifier.urihttp://hdl.handle.net/2122/12689en
dc.description.abstractNisyros Island (Greece) is an active volcano hosting a high-enthalpy geothermal system. During June 2013, an extensive survey on Hg concentrations in different matrices (fumarolic fluids, atmosphere, soils and plants) was carried out at Lakki Plain, an intra-caldera area affected by widespread soil and fumarolic degassing. Concentrations of gaseous elemental mercury (GEM), H2S and CO2, were simultaneously measured in both the fumarolic emissions and the atmosphere around them. At the same time, 130 samples of top soils and 31 samples of plants (Cistus Creticus and Salvifolius and Erica Arborea and Manipuliflora) were collected for Hg analysis. Mercury concentrations in fumarolic gases ranged from 10,500 to 46,300 ng/m3, while Hg concentrations in the air ranged from high background values in the Lakki Plain caldera (10-36 ng/m3) up to 7100 ng/m3 in the fumarolic areas. Outside the caldera, the concentrations were relatively low (2-5 ng/m3). The positive correlation with both CO2 and H2S in air highlighted the importance of hydrothermal gases as carrier for GEM. On the other hand, soil Hg concentrations (0.023-13.7 µg/g) showed no significant correlations with CO2 and H2S in the soil gases, whereas it showed a positive correlation with total S content and an inverse one with the soil-pH, evidencing the complexity of the processes involving Hg carried by hydrothermal gases while passing through the soil. Total Hg concentrations in plant leaves (0.010-0.112 μg/g) had no direct correlation with soil Hg, with Cistus leaves containing higher values of Hg respect to Erica. Even though GEM concentrations in air within the caldera are sometimes orders of magnitude above the global background, they should not be considered dangerous to human health. Values exceeding the WHO guideline value of 1000 ng/m3 are very rare (<0.1%) and only found very close to the main fumarolic vents, where the access to tourists is prohibited.en
dc.language.isoengen
dc.relation.ispartofGeofluidsen
dc.relation.ispartofseries/(2019)en
dc.rightsCC0 1.0 Universalen
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/en
dc.subjectFumarolic mercuryen
dc.subjectAtmospheric mercuryen
dc.subjectSoil mercuryen
dc.subjectPlant mercuryen
dc.subjectMercury outputen
dc.titleDegassing and Cycling of Mercury at Nisyros Volcano (Greece)en
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumberID 4783514en
dc.identifier.URLhttps://www.hindawi.com/journals/geofluids/2019/4783514/en
dc.subject.INGV05.09. Miscellaneousen
dc.identifier.doi10.1155/2019/4783514en
dc.description.obiettivoSpecifico6A. Geochimica per l'ambiente e geologia medicaen
dc.description.journalTypeJCR Journalen
dc.contributor.authorGagliano, Antonina Lisaen
dc.contributor.authorCalabrese, Sergioen
dc.contributor.authorDaskalopoulou, Kyriakien
dc.contributor.authorCabassi, J.en
dc.contributor.authorCapecchiacci, F.en
dc.contributor.authorTassi, F.en
dc.contributor.authorBellomo, Sergioen
dc.contributor.authorBrusca, Lorenzoen
dc.contributor.authorBonsignore, M.en
dc.contributor.authorMilazzo, S.en
dc.contributor.authorGiudice, Gaetanoen
dc.contributor.authorLi Vigni, Lorenzaen
dc.contributor.authorParello, F.en
dc.contributor.authorD'Alessandro, Walteren
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italiaen
dc.contributor.departmentUniversity of Palermo, DiSTeM, Italyen
dc.contributor.departmentUniversity of Palermo, DiSTeM, Italyen
dc.contributor.departmentUniversity of Florence, Dip. Scienze della Terra, Italyen
dc.contributor.departmentUniversity of Florence, Dip. Scienze della Terra, Italyen
dc.contributor.departmentUniversity of Florence, Dip. Scienze della Terra, Italyen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italiaen
dc.contributor.departmentConsiglio Nazionale delle Ricerche, IAMC, UOS di Capo Granitola, Italyen
dc.contributor.departmentUniversity of Palermo, DiSTeM, Italyen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italiaen
dc.contributor.departmentUniversity of Palermo, DiSTeM, Italyen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italiaen
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.fulltextWith Fulltext-
item.openairetypearticle-
item.grantfulltextopen-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.deptDipartimento C.F.T.A., Palermo University, Palermo/Italy-
crisitem.author.deptDipartimento di Scienze della Terra e del Mare (DiSTeM), University of Palermo, Italy-
crisitem.author.deptunifi-
crisitem.author.deptUniversità di Firenze, Dip. Scienze della Terra, 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.deptConsiglio Nazionale delle Ricerche, IAMC, UOS di Capo Granitola, Italy-
crisitem.author.deptUniversità di Palermo, Dipartimento 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.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.orcid0000-0002-6570-9673-
crisitem.author.orcid0000-0002-9410-4139-
crisitem.author.orcid0000-0002-1223-6737-
crisitem.author.orcid0000-0003-1724-0388-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent05. General-
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