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http://repositorio.unicamp.br/jspui/handle/REPOSIP/337095
Type: | Artigo |
Title: | Topsoil pollution in highway medians in the State of SAo Paulo (Brazil): determination of potentially toxic elements using synchrotron radiation total reflection X-ray fluorescence |
Author: | Canteras, Felippe Benavente Faria Oliveira, Bruna Fernanda Moreira, Silvana |
Abstract: | The presence of metals in vehicle emissions is due to several factors, such as the composition of fuels and lubricating oils, the wear of engine components, and their use in catalytic converters. It is known that the soil near highways is greatly affected by heavy vehicle traffic, since the use of highways is of fundamental importance for the flow of goods and public transport, especially in Brazil, street transport being the main form of transport in the country. Considering the scenario described, the main objective of this study was to monitor the concentration of potentially toxic elements in surface soils located on the medians of the main access highways in the city of Campinas (SPBrazil) and classify the soils through geoaccumulation index. Using SR-TXRF it was possible to detect and determine the concentrations of 5 elements of toxic-environmental interest (Cr, Ni, Cu, Zn, and Pb) and 11 natural soil composition elements (Al, Si, S, Cl, K, Ca, Ti, Mn, Fe, Rb, and Sr). To evaluate the influence of highway distance on elementary concentrations, ANOVA and Tukey statistical tests were applied. Nickel, Cu, and Zn showed a decrease in their concentrations moving away from the highway, indicating their relation with vehicular emissions. Applying principal components analysis (PCA), it was possible to identify four groups of the quantified elements: those mainly related to the soil itself, those produced by traffic of automotive vehicles, and those emitted by industrial activities |
Subject: | Solos - Poluição Radiação sincrotrônica |
Country: | Alemanha |
Editor: | Springer |
Rights: | Fechado |
Identifier DOI: | 10.1007/s11356-019-05425-2 |
Address: | https://link.springer.com/article/10.1007/s11356-019-05425-2 |
Date Issue: | 2019 |
Appears in Collections: | FEC - Artigos e Outros Documentos FEC - Artigos e Outros Documentos FT - Artigos e Outros Documentos |
Files in This Item:
File | Description | Size | Format | |
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000473172800068.pdf | 1.13 MB | Adobe PDF | View/Open |
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