Geochemistry of Mercury Along a Soil Profile Compared to Other Elements and to the Parental Rock: Evidence of External Input

dc.creatorFiorentino, JC
dc.creatorEnzweiler, J
dc.creatorAngelica, RS
dc.date2011
dc.dateOCT
dc.date2014-07-30T17:47:49Z
dc.date2015-11-26T16:52:31Z
dc.date2014-07-30T17:47:49Z
dc.date2015-11-26T16:52:31Z
dc.date.accessioned2018-03-28T23:39:28Z
dc.date.available2018-03-28T23:39:28Z
dc.identifierWater Air And Soil Pollution. Springer, v. 221, n. 41730, n. 63, n. 75, 2011.
dc.identifier0049-6979
dc.identifierWOS:000296696000006
dc.identifier10.1007/s11270-011-0769-x
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/67974
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/67974
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1276303
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionThe vertical distribution of mercury along a weathering profile derived from a diabase was compared to the main geochemical and mineralogical characteristics of the soil and its parental rock. The sampling site was in a metropolitan area, nearby to an active quarry and relatively close to an industrial park. The samples of a 6-m-deep fresh exposure of the soil profile and also of fresh rock were collected during the dry season. Kaolinite, goethite, hematite, and residual primary minerals were identified in the soil samples. Typically, the concentrations of Hg in the soil are low. Whole samples contained between 1 (rock) and 37 mu g kg(-1) Hg, while the<63-mu m soil fraction had up to 52 mu g kg(-1) Hg. The higher values of Hg corresponded to the upper layers of A (0-10 cm) and B (200-220 cm) soil horizons. Elemental gains and losses calculated against Zr resulted in the following order: Hg >> Pb>Zr>LREE>Nb>HREE>Al>Ti>Fe>Cr. Total organic carbon in soil samples varied between 0.2 and 5.1 g dm(-3), and correlation with Hg concentrations was moderate. The acid pH (4.2-5.5) of the soil samples favors the sorption Hg species by predominant secondary phases like goethite and kaolinite. The Hg concentration of the rock is insufficient to explain the large enrichment of Hg along the soil profile, indicating that exogenic Hg, via atmospheric deposition, contributed to the measured Hg concentrations of the soil.
dc.description221
dc.description41730
dc.description63
dc.description75
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFAPESP [Proc. 05/53599-0]
dc.languageen
dc.publisherSpringer
dc.publisherDordrecht
dc.publisherHolanda
dc.relationWater Air And Soil Pollution
dc.relationWater Air Soil Pollut.
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectAtmosphere
dc.subjectGeochemistry
dc.subjectLead
dc.subjectLithogenic
dc.subjectMercury
dc.subjectTropical soil
dc.subjectRock weathering
dc.subjectRare-earth-elements
dc.subjectTrace-elements
dc.subjectChemical-composition
dc.subjectContinental-crust
dc.subjectFrench-guiana
dc.subjectBasin Amazon
dc.subjectForest Soils
dc.subjectMobility
dc.subjectAdsorption
dc.subjectChina
dc.titleGeochemistry of Mercury Along a Soil Profile Compared to Other Elements and to the Parental Rock: Evidence of External Input
dc.typeArtículos de revistas


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