| |
|
|
| Registros recuperados : 142 | |
| Registros recuperados : 142 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Arroz e Feijão. |
|
Data corrente: |
18/11/2016 |
|
Data da última atualização: |
18/11/2016 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
RESENDE, M. F. de; NOVOTNY, E. H.; BRASIL, T. F.; PEREIRA NETTO, A. D.; MADARI, B. E. |
|
Afiliação: |
MICHELE FABRI DE RESENDE, Bolsista CNPS; ETELVINO HENRIQUE NOVOTNY, CNPS; TAILA FIGUEREDO BRASIL, UFMG; ANNIBAL DUARTE PEREIRA NETTO, UFF; BEATA EMOKE MADARI, CNPAF. |
|
Título: |
Dynamic of polycyclic aromatic hydrocarbons in soils treated with biochar. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE OF INTERNATIONAL HUMIC SUBSTANCES SOCIETY, 18., Kanazawa, 2016. Keystone for future earth: natural organic matter (NOM) in diverse environments: proceedings. Kobe: Kobe University, 2016. |
|
Idioma: |
Inglês |
|
Conteúdo: |
In recent years the interest in pyrogenic carbon for agricultural use (biochar, i.e. carbonized biomass for agricultural use) has sharply increased. However biochar contain dangerous compounds such as Polycyclic Aromatic Hydrocarbons (PAHs), many of them potentially carcinogenic and mutagenic. They are organic compounds formed from incomplete combustion of organic materials and are persistent pollutants. Therefore, PAHs concentrations and their dynamic must be evaluated in soils amended with biochar. For this, soil samples were collected in three experimental areas in different years (1, 3, 5 or 6) after the application of 0 (control) or 16 Mg ha-1 of biochar. This is the first report of PAHs persistence up to six years in soil treated with biochar. The biochar application increased total PAHs concentrations up to five years after the application, however the levels have always been an order of magnitude lower the limits of prevention established by International Environmental Agencies for soils. Thus, under the evaluated conditions ,the use of biochar was safe concerning PAHs contamination, besides, after six years of the application, the levels found were similar to the control treatment, making it possible to define a safe frequency of application based on the persistence of PAHs in soil. |
|
Palavras-Chave: |
Carbono pirogênico; Espectrometria de massa; Hidrocarbonetos aromáticos policíclicos. |
|
Thesagro: |
Cromatografia Gasosa. |
|
Thesaurus NAL: |
biochar. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/149144/1/2016-050.pdf
|
|
Marc: |
LEADER 02175naa a2200229 a 4500
001 2056626
005 2016-11-18
008 2016 bl uuuu u00u1 u #d
100 1 $aRESENDE, M. F. de
245 $aDynamic of polycyclic aromatic hydrocarbons in soils treated with biochar.$h[electronic resource]
260 $c2016
520 $aIn recent years the interest in pyrogenic carbon for agricultural use (biochar, i.e. carbonized biomass for agricultural use) has sharply increased. However biochar contain dangerous compounds such as Polycyclic Aromatic Hydrocarbons (PAHs), many of them potentially carcinogenic and mutagenic. They are organic compounds formed from incomplete combustion of organic materials and are persistent pollutants. Therefore, PAHs concentrations and their dynamic must be evaluated in soils amended with biochar. For this, soil samples were collected in three experimental areas in different years (1, 3, 5 or 6) after the application of 0 (control) or 16 Mg ha-1 of biochar. This is the first report of PAHs persistence up to six years in soil treated with biochar. The biochar application increased total PAHs concentrations up to five years after the application, however the levels have always been an order of magnitude lower the limits of prevention established by International Environmental Agencies for soils. Thus, under the evaluated conditions ,the use of biochar was safe concerning PAHs contamination, besides, after six years of the application, the levels found were similar to the control treatment, making it possible to define a safe frequency of application based on the persistence of PAHs in soil.
650 $abiochar
650 $aCromatografia Gasosa
653 $aCarbono pirogênico
653 $aEspectrometria de massa
653 $aHidrocarbonetos aromáticos policíclicos
700 1 $aNOVOTNY, E. H.
700 1 $aBRASIL, T. F.
700 1 $aPEREIRA NETTO, A. D.
700 1 $aMADARI, B. E.
773 $tIn: INTERNATIONAL CONFERENCE OF INTERNATIONAL HUMIC SUBSTANCES SOCIETY, 18., Kanazawa, 2016. Keystone for future earth: natural organic matter (NOM) in diverse environments: proceedings. Kobe: Kobe University, 2016.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
