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Registro Completo |
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
21/09/2021 |
Data da última atualização: |
21/09/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LOYOLA, J.; ALMEIDA JUNIOR, P. B. de; QUITERIO, S. L.; SOUSA, C. R.; ARBILLA, G.; ESCALEIRA, V.; CARVALHO, M. I. de; SILVA, A. dos S. A. G. da. |
Afiliação: |
JOSIANE LOYOLA, UFRJ; PIERRE BATISTA DE ALMEIDA JUNIOR, UFRJ; SIMONE LORENA QUITERIO, UFRJ; CELIA REGINA SOUSA, UFRJ; GRACIELA ARBILLA, UFRJ; VIVIANE ESCALEIRA, CNPS; MARIA ISABEL DE CARVALHO, FEEMA; ALZIRA DOS SANTOS AMARAL GOMES DA SILVA, FEEMA. |
Título: |
Concentration and emission sources of airborne metals in particulate matter in the industrial district of Medio Paraiba, State of Rio de Janeiro, Brazil. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
Archives of Environmental Contamination and Toxicology, v. 51, n. 4, p. 485-493, 2006. |
DOI: |
https://doi.org/10.1007/s00244-005-0313-3 |
Idioma: |
Inglês |
Conteúdo: |
Total suspended particles and 12 airborne metals were determined in 4 sampling sites in the industrial region of Medio Paraiba, Brazil. The geometrical means for the four sampling locals were (in units of mu g/m(3)): 65.9 in Barra Mansa, 57.3 in Jardim Paraiba (Volta Redonda), 41.7 in Resende, and 48.9 in Volta Grande (Volta Redonda). These values are lower than levels previously determined in urban and industrial locals of the Metropolitan Area of Rio de Janeiro. For metals, the higher concentrations were obtained for Ca, Zn, Al, Fe, and Mg. Ca, Zn, and Al levels are higher than those determined in other industrial areas. These three metals are used in steel manufacturing, the main economical activity of the region. Enrichment factors for Zn, Cu, Cd, and Pb are higher than 10, suggesting an industrial input. Statistical analysis show a high correlation among Ca, Mg, Zn, Cr, Al, Mn, and Fe, all of them used as raw materials in steel manufacturing and/or accumulated as industrial blast furnace slag and steelworks slag. |
Palavras-Chave: |
Particulate matter; Trace metals; Vehicular emissions. |
Thesaurus Nal: |
Air quality. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 01944naa a2200265 a 4500 001 2134646 005 2021-09-21 008 2006 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1007/s00244-005-0313-3$2DOI 100 1 $aLOYOLA, J. 245 $aConcentration and emission sources of airborne metals in particulate matter in the industrial district of Medio Paraiba, State of Rio de Janeiro, Brazil.$h[electronic resource] 260 $c2006 520 $aTotal suspended particles and 12 airborne metals were determined in 4 sampling sites in the industrial region of Medio Paraiba, Brazil. The geometrical means for the four sampling locals were (in units of mu g/m(3)): 65.9 in Barra Mansa, 57.3 in Jardim Paraiba (Volta Redonda), 41.7 in Resende, and 48.9 in Volta Grande (Volta Redonda). These values are lower than levels previously determined in urban and industrial locals of the Metropolitan Area of Rio de Janeiro. For metals, the higher concentrations were obtained for Ca, Zn, Al, Fe, and Mg. Ca, Zn, and Al levels are higher than those determined in other industrial areas. These three metals are used in steel manufacturing, the main economical activity of the region. Enrichment factors for Zn, Cu, Cd, and Pb are higher than 10, suggesting an industrial input. Statistical analysis show a high correlation among Ca, Mg, Zn, Cr, Al, Mn, and Fe, all of them used as raw materials in steel manufacturing and/or accumulated as industrial blast furnace slag and steelworks slag. 650 $aAir quality 653 $aParticulate matter 653 $aTrace metals 653 $aVehicular emissions 700 1 $aALMEIDA JUNIOR, P. B. de 700 1 $aQUITERIO, S. L. 700 1 $aSOUSA, C. R. 700 1 $aARBILLA, G. 700 1 $aESCALEIRA, V. 700 1 $aCARVALHO, M. I. de 700 1 $aSILVA, A. dos S. A. G. da 773 $tArchives of Environmental Contamination and Toxicology$gv. 51, n. 4, p. 485-493, 2006.
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Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
02/08/2012 |
Data da última atualização: |
17/08/2017 |
Autoria: |
POTES, M. da L.; DICK, D. P.; SANTANA, G. S.; TOMAZI, M.; BAYER, C. |
Afiliação: |
Mariana da Luz Potes, CPACT; Deborah Pinheiro Dick, Universidade Federal do rio Grande do sul; Graciele Sarante Santana, UFRGS; MICHELY TOMAZI, CPAO; Cimélio Bayer, UFRGS. |
Título: |
Soil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian leptosols. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 5, p. 707-715, maio 2012. |
Idioma: |
Inglês |
Notas: |
Título em português: Matéria orgânica do solo em pastagens afetadas pelo fogo e em mata de Araucária em Neossolos sul?brasileiros. |
Conteúdo: |
The objective of this work was to evaluate the distribution pattern and composition of soil organic matter (SOM) and its physical pools of Leptosols periodically affected by fire over the last 100 years in South Brazil. Soil samples at 0?5, 5?10, and 10?15 cm depths were collected from the following environments: native pasture without burning in the last year and grazed with 0.5 livestock per hectare per year (1NB); native pasture without burning in the last 23 years and grazed with 2.0 livestock per hectare per year (23NB); and an Araucaria forest (AF). Physical fractionation was performed with the 0?5 and 5?10 cm soil layers. Soil C and N stocks were determined in the three depths and in the physical pools, and organic matter was characterized by infrared spectroscopy and thermogravimetry. The largest C stocks in all depths and physical pools were found under the AF. The 23NB environment showed the lowest soil C and N stocks at the 5?15 cm depth, which was related to the end of burning and to the higher grazing intensity. The SOM of the occluded light fraction showed a greater chemical recalcitrance in 1NB than in 23NB. Annual pasture burning does not affect soil C stocks up to 15 cm of depth. Index terms: physical |
Palavras-Chave: |
Carbon stock; Chemical recalcitrance; Estoque de carbono; Frações físicas; Physical pools; Recalcitrância química; Termodecomposição; Thermo-decomposition. |
Thesagro: |
Composição química. |
Thesaurus NAL: |
Carbon sinks; chemical composition. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/62906/1/Soil-organic-matter.pdf
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Marc: |
LEADER 02301naa a2200313 a 4500 001 1930322 005 2017-08-17 008 2012 bl uuuu u00u1 u #d 100 1 $aPOTES, M. da L. 245 $aSoil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian leptosols. 260 $c2012 500 $aTítulo em português: Matéria orgânica do solo em pastagens afetadas pelo fogo e em mata de Araucária em Neossolos sul?brasileiros. 520 $aThe objective of this work was to evaluate the distribution pattern and composition of soil organic matter (SOM) and its physical pools of Leptosols periodically affected by fire over the last 100 years in South Brazil. Soil samples at 0?5, 5?10, and 10?15 cm depths were collected from the following environments: native pasture without burning in the last year and grazed with 0.5 livestock per hectare per year (1NB); native pasture without burning in the last 23 years and grazed with 2.0 livestock per hectare per year (23NB); and an Araucaria forest (AF). Physical fractionation was performed with the 0?5 and 5?10 cm soil layers. Soil C and N stocks were determined in the three depths and in the physical pools, and organic matter was characterized by infrared spectroscopy and thermogravimetry. The largest C stocks in all depths and physical pools were found under the AF. The 23NB environment showed the lowest soil C and N stocks at the 5?15 cm depth, which was related to the end of burning and to the higher grazing intensity. The SOM of the occluded light fraction showed a greater chemical recalcitrance in 1NB than in 23NB. Annual pasture burning does not affect soil C stocks up to 15 cm of depth. Index terms: physical 650 $aCarbon sinks 650 $achemical composition 650 $aComposição química 653 $aCarbon stock 653 $aChemical recalcitrance 653 $aEstoque de carbono 653 $aFrações físicas 653 $aPhysical pools 653 $aRecalcitrância química 653 $aTermodecomposição 653 $aThermo-decomposition 700 1 $aDICK, D. P. 700 1 $aSANTANA, G. S. 700 1 $aTOMAZI, M. 700 1 $aBAYER, C. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 47, n. 5, p. 707-715, maio 2012.
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