Ferruginous compounds in the airborne particulate matter of the metropolitan area of Belo Horizonte, Minas Gerais, Brazil

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dc.creatorFernanda Vasconcelos Fonseca Tavares
dc.creatorJose Domingos Ardisson
dc.creatorPaulo César Horta Rodrigues
dc.creatorJosé Domingos Fabris
dc.creatorLuis Eugenio Fernandez Outon
dc.creatorVanusa Maria Delage Feliciano
dc.date.accessioned2025-02-17T15:06:19Z
dc.date.accessioned2025-09-08T23:58:04Z
dc.date.available2025-02-17T15:06:19Z
dc.date.issued2017
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.identifier.doihttps://doi.org/10.1007/s11356-017-9613-1
dc.identifier.issn1614-7499
dc.identifier.urihttps://hdl.handle.net/1843/80126
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofEnvironmental Science and Pollution Research
dc.rightsAcesso Restrito
dc.subjectAr
dc.subjectÓxido de ferro
dc.subjectMössbauer, Espectroscopia de
dc.subjectMineração de ferro
dc.subject.otherAir quality
dc.subject.otherAirborne particulate matter
dc.subject.otherIron oxide
dc.subject.otherMössbauer spectroscopy
dc.subject.otherIron mining
dc.subject.otherIron quadrangle
dc.titleFerruginous compounds in the airborne particulate matter of the metropolitan area of Belo Horizonte, Minas Gerais, Brazil
dc.typeArtigo de periódico
local.citation.epage19692
local.citation.spage19683
local.citation.volume24
local.description.resumoSamples of soil, iron ore, and airborne particulate matter (size <10 μm) were analyzed with the main goal of investigating the differentiating physicochemical properties of their ferruginous compounds. These data were used to identify whether the sources of airborne particulate matter in the metropolitan area of Belo Horizonte, Minas Gerais, Brazil, are either from natural origin, as, for instance, re-suspension of particles from soil, or due to anthropogenic activities, meaning that it would be originated from the many iron ore minings surrounding the metropolitan area. Numerical simulations were used to model the atmospheric dispersion of the airborne particulate matter emitted by iron mining located at the Iron Quadrangle geodomain, Minas Gerais. Results from these numerical simulations supported identifying the sites with the highest concentrations of airborne particulate matter in the metropolitan area. Samples of these suspended materials were collected at the selected sites by using high-volume air samplers. The physicochemical features of the solid materials were assessed by X-ray fluorescence, X-ray diffraction, magnetometry, and 57Fe Mössbauer spectroscopy. The soil materials were found to be rich in quartz, aluminum, organic matter, and low contents of iron, mainly as low crystalline iron oxides. The samples of the iron ores, on the other hand, contain high concentration of iron, dominantly as relatively pure and crystalline hematite (α-Fe2O3). The samples of the airborne particulate matter are rich in iron, mainly as hematite, but contained also quartz, aluminum, and calcium. Mössbauer spectroscopy was used to evaluate the hyperfine structure of 57Fe of the hematite both from the iron ore and the soil samples. The structural characteristics of the hematite of these particulate materials were further explored. The direct influence of the iron ore mining on the composition of the airborne particulate matter was clearly evidenced based on the trace ability of hematite to its source of emission. Even the atmospheric air on regions relatively far away from the mining activities is also significantly influenced.
local.identifier.orcidhttps://orcid.org/0000-0003-1060-2374
local.identifier.orcidhttps://orcid.org/0000-0002-2427-5995
local.identifier.orcidhttps://orcid.org/0000-0003-3264-337X
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://link.springer.com/article/10.1007/s11356-017-9613-1

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