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Registro Completo |
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
13/09/2021 |
Data da última atualização: |
10/06/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MORAIS, C. P. de; TADINI, A. M.; BENTO, L. R.; OURSEL, B.; GUIMARÃES, F. E. G.; MARTIN NETO, L.; MOUNIER, S.; MILORI, D. M. B. P. |
Afiliação: |
LADISLAU MARTIN NETO, CNPDIA; DEBORA MARCONDES BASTOS PEREIRA, CNPDIA. |
Título: |
Assessing extracted organic matter quality from river sediments by elemental and molecular characterization: Application to the Tietê and Piracicaba Rivers (São Paulo, Brazil). |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Applied Geochemistry, v. 131, 105049, 2021. |
Páginas: |
1 - 11 |
ISSN: |
0883-2927 |
DOI: |
https://doi.org/10.1016/j.apgeochem.2021.105049 |
Idioma: |
Inglês |
Conteúdo: |
Urban river pollution causes serious problems to the environment, human health, and water scarcity. Developing tools to identify and assess the health of aquatic river systems is essential for monitoring the quality of rivers and implementing actions. This study assesses the elemental and molecular characteristics of organic matter (OM) extracted from river sediments and associates them with river quality. To assess the quality of sediment cores, the most reactive and available OM from two urban rivers (Tietˆe and Piracicaba Rivers, S˜ ao Paulo, Brazil) was isolated with alkaline and water solutions. It was then characterized by elemental composition, ultraviolet–visible spectroscopy, and fluorescence excitation-emission matrix with parallel factor analysis. The average yield of alkaline extraction was 40.71% ± 5.52% of OM present in the bulk sediments. Extracted organic matter from sediments (EOMSed) from the Tietˆe River presented the highest average concentrations of nonpurgeable organic carbon (NPOC) and total organic nitrogen (TON), and the lowest average NPOC/TON molar ratios and specific UV absorbance at 254 nm (SUVA254). Considering the high degree of eutrophication in the Tietˆe River, these results suggest a greater input of simple OM with nitrogenous structures. The humic-like component in EOMSed was the most abundant in both rivers. The aromaticity of EOMSed from the Piracicaba River was evidenced by the greater contribution of complex structures in the form of aromatic and polyaromatic moieties and higher SUVA254. EOMSed from the Tietˆe River also featured enhanced biological activity due to the greater contribution of microbial-derived products and the presence of small molecules and nitrogenous structures. As this combination of elemental and spectroscopic techniques successfully identified the characteristics of extracted OM, it can be used as a tool to assess the global river quality MenosUrban river pollution causes serious problems to the environment, human health, and water scarcity. Developing tools to identify and assess the health of aquatic river systems is essential for monitoring the quality of rivers and implementing actions. This study assesses the elemental and molecular characteristics of organic matter (OM) extracted from river sediments and associates them with river quality. To assess the quality of sediment cores, the most reactive and available OM from two urban rivers (Tietˆe and Piracicaba Rivers, S˜ ao Paulo, Brazil) was isolated with alkaline and water solutions. It was then characterized by elemental composition, ultraviolet–visible spectroscopy, and fluorescence excitation-emission matrix with parallel factor analysis. The average yield of alkaline extraction was 40.71% ± 5.52% of OM present in the bulk sediments. Extracted organic matter from sediments (EOMSed) from the Tietˆe River presented the highest average concentrations of nonpurgeable organic carbon (NPOC) and total organic nitrogen (TON), and the lowest average NPOC/TON molar ratios and specific UV absorbance at 254 nm (SUVA254). Considering the high degree of eutrophication in the Tietˆe River, these results suggest a greater input of simple OM with nitrogenous structures. The humic-like component in EOMSed was the most abundant in both rivers. The aromaticity of EOMSed from the Piracicaba River was evidenced by the greater contribution of complex structures in the form of a... Mostrar Tudo |
Palavras-Chave: |
Extracted organic matter; Parallel factor analysis; River sediments. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02863naa a2200277 a 4500 001 2134308 005 2022-06-10 008 2021 bl uuuu u00u1 u #d 022 $a0883-2927 024 7 $ahttps://doi.org/10.1016/j.apgeochem.2021.105049$2DOI 100 1 $aMORAIS, C. P. de 245 $aAssessing extracted organic matter quality from river sediments by elemental and molecular characterization$bApplication to the Tietê and Piracicaba Rivers (São Paulo, Brazil).$h[electronic resource] 260 $c2021 300 $a1 - 11 520 $aUrban river pollution causes serious problems to the environment, human health, and water scarcity. Developing tools to identify and assess the health of aquatic river systems is essential for monitoring the quality of rivers and implementing actions. This study assesses the elemental and molecular characteristics of organic matter (OM) extracted from river sediments and associates them with river quality. To assess the quality of sediment cores, the most reactive and available OM from two urban rivers (Tietˆe and Piracicaba Rivers, S˜ ao Paulo, Brazil) was isolated with alkaline and water solutions. It was then characterized by elemental composition, ultraviolet–visible spectroscopy, and fluorescence excitation-emission matrix with parallel factor analysis. The average yield of alkaline extraction was 40.71% ± 5.52% of OM present in the bulk sediments. Extracted organic matter from sediments (EOMSed) from the Tietˆe River presented the highest average concentrations of nonpurgeable organic carbon (NPOC) and total organic nitrogen (TON), and the lowest average NPOC/TON molar ratios and specific UV absorbance at 254 nm (SUVA254). Considering the high degree of eutrophication in the Tietˆe River, these results suggest a greater input of simple OM with nitrogenous structures. The humic-like component in EOMSed was the most abundant in both rivers. The aromaticity of EOMSed from the Piracicaba River was evidenced by the greater contribution of complex structures in the form of aromatic and polyaromatic moieties and higher SUVA254. EOMSed from the Tietˆe River also featured enhanced biological activity due to the greater contribution of microbial-derived products and the presence of small molecules and nitrogenous structures. As this combination of elemental and spectroscopic techniques successfully identified the characteristics of extracted OM, it can be used as a tool to assess the global river quality 653 $aExtracted organic matter 653 $aParallel factor analysis 653 $aRiver sediments 700 1 $aTADINI, A. M. 700 1 $aBENTO, L. R. 700 1 $aOURSEL, B. 700 1 $aGUIMARÃES, F. E. G. 700 1 $aMARTIN NETO, L. 700 1 $aMOUNIER, S. 700 1 $aMILORI, D. M. B. P. 773 $tApplied Geochemistry$gv. 131, 105049, 2021.
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Embrapa Instrumentação (CNPDIA) |
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Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
05/12/2017 |
Data da última atualização: |
05/12/2017 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
MASCARENHAS, B. C.; TAVARES, F. A.; PARIS, E. C. |
Afiliação: |
ELAINE CRISTINA PARIS, CNPDIA. |
Título: |
Imobilização de zeólita FAU em fibras poliméricas para a adsorção de corantes. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 9., 2017, São Carlos. Anais ... São Carlos: Embrapa Instrumentação, 2017. p. 555-558. Editores: Caue Ribeiro de Oliveira, Elaine Cristina Paris, Luiz Henrique Capparelli Mattoso, Marcelo Porto Bemquerer, Maria Alice Martins, Odílio Benedito Garrido de Assis. |
ISSN: |
2175-8395 |
Idioma: |
Português |
Palavras-Chave: |
Compósito; Corantes; Fibras poliméricas; Zeólita FAU. |
Thesagro: |
Adsorção. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/168269/1/P-Imobilizacao-de-Zeolita-FAU-....pdf
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Marc: |
LEADER 00862nam a2200193 a 4500 001 2081589 005 2017-12-05 008 2017 bl uuuu u00u1 u #d 022 $a2175-8395 100 1 $aMASCARENHAS, B. C. 245 $aImobilização de zeólita FAU em fibras poliméricas para a adsorção de corantes.$h[electronic resource] 260 $aIn: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 9., 2017, São Carlos. Anais ... São Carlos: Embrapa Instrumentação, 2017. p. 555-558. Editores: Caue Ribeiro de Oliveira, Elaine Cristina Paris, Luiz Henrique Capparelli Mattoso, Marcelo Porto Bemquerer, Maria Alice Martins, Odílio Benedito Garrido de Assis.$c2017 650 $aAdsorção 653 $aCompósito 653 $aCorantes 653 $aFibras poliméricas 653 $aZeólita FAU 700 1 $aTAVARES, F. A. 700 1 $aPARIS, E. C.
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