Publications by authors named "Eloana Janice Bonfleur"
The organic soils (Histosols) are important as filters for organic and inorganic pollutants, mainly because they are usually located on the banks of rivers and lakes. The aim of this study was to evaluate which functional groups of soil organic matter (SOM) most contribute for the Pb and HAsO adsorption in Histosols. This study used 20 samples (160 ~ 290 g kg of organic carbon (OC) collected at 0-5 cm in five areas of Histosols from Curitiba, Southern of Brazil.
View Article and Find Full Text PDFPb can be stabilized in soil as Pb-P mineral. The aims of this study were to access the distribution of Pb in organic and mineral fractions of contrasting texture of soil Pb-contaminated and remediated with P and Cl and to evaluate the stability of chloropyromorphite in these soils. A clay loam Oxisol (sandstone) and a clayey Ultisol (basalt) were used in a factorial experiment, with three replications: two soils, two Pb contamination levels, two soil pH values, and four P doses.
View Article and Find Full Text PDFArticle Synopsis
- Wetlands near urban areas, often seen as isolated, may be used for body disposal or as crime scenes, with the soils typically being rich in organic matter (Histosols).
- This study used pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) to analyze small soil samples from five wetlands in Curitiba, Brazil, focusing on their organic composition.
- Results showed a clear distinction between fresh plant materials and more durable, charred materials, suggesting that Py-GC/MS could aid forensic investigations by helping trace samples back to crime suspects.