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Prediction of heavy metals in polluted mangrove soils in Brazil with the highest reported levels of mercury using near-infrared spectroscopy.
Silva, Fábia Shirley Ribeiro; da Silva, Yuri Jacques Agra Bezerra; Maia, Angelo Jamil; Biondi, Caroline Miranda; Araújo, Paula Renata Muniz; Barbosa, Ronny Sobreira; Silva, Cinthia Maria Cordeiro Atanázio Cruz; Luiz, Tereza Cristina Sidrone; Araújo, Arthur Felipe Valença.
Afiliación
  • Silva FSR; Agronomy Department, Federal Rural University of Pernambuco (UFRPE), Dom Manuel de Medeiros Street, S/N, Dois Irmãos, Recife, PE, 52171-900, Brazil.
  • da Silva YJAB; Agronomy Department, Federal University of Piauí (UFPI), Planalto Horizonte, Bom Jesus, PI, 64900-000, Brazil. yurijacques@ufpi.edu.br.
  • Maia AJ; Agronomy Department, Federal Rural University of Pernambuco (UFRPE), Dom Manuel de Medeiros Street, S/N, Dois Irmãos, Recife, PE, 52171-900, Brazil.
  • Biondi CM; Agronomy Department, Federal Rural University of Pernambuco (UFRPE), Dom Manuel de Medeiros Street, S/N, Dois Irmãos, Recife, PE, 52171-900, Brazil.
  • Araújo PRM; Agronomy Department, Federal Rural University of Pernambuco (UFRPE), Dom Manuel de Medeiros Street, S/N, Dois Irmãos, Recife, PE, 52171-900, Brazil.
  • Barbosa RS; Agronomy Department, Federal University of Piauí (UFPI), Planalto Horizonte, Bom Jesus, PI, 64900-000, Brazil.
  • Silva CMCAC; Agronomy Department, Federal Rural University of Pernambuco (UFRPE), Dom Manuel de Medeiros Street, S/N, Dois Irmãos, Recife, PE, 52171-900, Brazil.
  • Luiz TCS; Agronomy Department, Federal Rural University of Pernambuco (UFRPE), Dom Manuel de Medeiros Street, S/N, Dois Irmãos, Recife, PE, 52171-900, Brazil.
  • Araújo AFV; Agronomy Department, Federal Rural University of Pernambuco (UFRPE), Dom Manuel de Medeiros Street, S/N, Dois Irmãos, Recife, PE, 52171-900, Brazil.
Environ Geochem Health ; 45(11): 8337-8352, 2023 Nov.
Article en En | MEDLINE | ID: mdl-37605089
Infrared reflectance spectroscopy has demonstrated potential as a tool for monitoring and preventing contamination in different environments. The objective of this study was to evaluate the usage of near-infrared spectroscopy for predicting heavy-metal contamination in mangrove soils from the Botafogo River estuary located in Pernambuco State, Northeastern Brazil. These soils exhibit the highest mercury (Hg) levels ever reported for Brazilian mangrove soils. Sixty-one samples (obtained at depths ranging from 0 to 5 cm) were collected and measured using near-infrared (1000-2500 nm) reflectance spectroscopy. Preprocessing methods were applied, and partial least squares regression was used to build prediction models for attributes such as clay content, soil organic matter (SOM), pH, Eh, and concentrations of Cr, Cu, Hg, Ni, Pb, and Zn. The models were evaluated using root mean squared error (RMSE), the adjusted coefficient of determination (R2adj), bias, the ratio of performance to interquartile distance (RPIQ), and Lin's concordance correlation coefficient (CCC). The best outcomes were noted for concentrations of Cr, Cu, Hg, Ni, and Pb (RPIQ > 2.5 and R2adj > 0.80); second-best outcomes were found for Zn and SOM (RPIQ > 1.5 and R2adj > 0.70). Clay content, pH and Eh exhibited the poorest outcomes (RPIQ < 1.5). The importance of spectral preprocessing is highlighted, notably with Savitzky-Golay derivatives and Multiplicative Scatter Corrections, which boosted performance for most of the variables. Near-infrared spectroscopy can be efficiently used to predict Cr, Cu, Hg, Ni, Pb and SOM and represents a technique complementary to traditional analyses.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes del Suelo / Metales Pesados / Mercurio Tipo de estudio: Prognostic_studies / Risk_factors_studies País/Región como asunto: America do sul / Asia / Brasil Idioma: En Revista: Environ Geochem Health Asunto de la revista: QUIMICA / SAUDE AMBIENTAL Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Contaminantes del Suelo / Metales Pesados / Mercurio Tipo de estudio: Prognostic_studies / Risk_factors_studies País/Región como asunto: America do sul / Asia / Brasil Idioma: En Revista: Environ Geochem Health Asunto de la revista: QUIMICA / SAUDE AMBIENTAL Año: 2023 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos