Mercury spatiality and mobilization in roadside soils adjacent to a savannah ecological reserve

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversity of Brasília-
Autor(es): dc.contributorUniversity of Brasilia-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.creatorRodrigues, Ygor O.S.-
Autor(es): dc.creatorDórea, José G.-
Autor(es): dc.creatorLandim, P. M.B.-
Autor(es): dc.creatorBernardi, José Vicente Elias-
Autor(es): dc.creatorMonteiro, Lucas Cabrera-
Autor(es): dc.creatorde Souza, João Pedro Rudrigues-
Autor(es): dc.creatorPinto, Lilian de Castro Moraes-
Autor(es): dc.creatorFernandes, Iara Oliveira-
Autor(es): dc.creatorde Souza, João Victor Villela-
Autor(es): dc.creatorSousa, Antônia Roberto-
Autor(es): dc.creatorSousa, Juruna de Paula-
Autor(es): dc.creatorMaciel, Bruno Leandro Oliveira-
Autor(es): dc.creatorDelvico, Francisco Marcos dos Santos-
Autor(es): dc.creatorde Souza, Jurandir Rodrigues-
Data de aceite: dc.date.accessioned2025-08-21T15:45:25Z-
Data de disponibilização: dc.date.available2025-08-21T15:45:25Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.envres.2021.112513-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/230063-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/230063-
Descrição: dc.descriptionMercury (Hg) is a persistent environmental pollutant of global concern. Recognized anthropic contributions to environmental Hg pollution include fuel fossil emissions, soil erosion, and industrial and mining activities. Environmental Hg that enters water bodies can be methylated before entering the food chain and contaminating man and wildlife. We used a kriging approach for sampling and X-ray crystallography to study the pressure of road-traffic Hg emissions on soil Hg concentrations in an ecological reserve (ESECAE) in Central Brazil’ savannah. We took samples of organic (n = 144) and mineral (n = 144) layers from the road-side and from the undisturbed soils at 0.1, 1, and 2 km from traffic, inside the ESECAE. Overall, total mercury (THg) concentrations determined by atomic absorption spectrophotometry were significantly higher in the organic layer than in the mineral layer. The mean soil THg in the organic and mineral layers was highest at the roadside (respectively 19.77 ± 12.01 and 16.18 ± 11.54 μg g−1), gradually decreasing with the distance from the road. At 2 km, the mean soil THg was 0.09 ± 0.30 and 0.029 ± 0.03 μg g−1, respectively, for the organic and mineral layers. X-ray crystallography showed mineralogical similarity of the sampled soils, indicating Hg externality, i.e, it did not originate from existing soil minerals. Co-kriging analysis (n = 288) confirmed Hg hotspots on the roadsides and a faster mobilization occurring up to a distance of 1 km for both layers. The soil reception and retention of traffic Hg emissions are mainly in the organic layer and can impact subsoil and adjacent areas. Thus, traffic soil-Hg pollution is limited to the road proximities; THg concentrations are high up to 100 m with an inflection point at 1 km.-
Descrição: dc.descriptionUniversidade de Brasília-
Descrição: dc.descriptionGeostatistics and Geodesy Laboratory Faculty UnB Planaltina University of Brasília-
Descrição: dc.descriptionFaculty of Health Sciences University of Brasilia, Asa Norte-
Descrição: dc.descriptionGeomathematics Laboratory São Paulo State University/UNESP, Rio Claro-
Descrição: dc.descriptionGraduate Program in Ecology Institute of Biological Sciences University of Brasília, Asa Norte-
Descrição: dc.descriptionLaboratory of Analytical and Environmental Chemistry Institute of Chemistry University of Brasília, Asa Norte-
Descrição: dc.descriptionGraduate Program in Environmental Sciences Faculty UnB Planaltina University of Brasília-
Descrição: dc.descriptionEMBRAPA Solos, Parque Estação Biológica - PqEB S/n-
Descrição: dc.descriptionGeomathematics Laboratory São Paulo State University/UNESP, Rio Claro-
Idioma: dc.languageen-
Relação: dc.relationEnvironmental Research-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBrazilian cerrado-
Palavras-chave: dc.subjectCokriging-
Palavras-chave: dc.subjectMercury-
Palavras-chave: dc.subjectRoadside soil-
Palavras-chave: dc.subjectSavannah-
Título: dc.titleMercury spatiality and mobilization in roadside soils adjacent to a savannah ecological reserve-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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