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Pedotransfer function in the evaluation of the contents of potentially toxic elements in soils from the State of São Paulo

Grant number: 12/20858-7
Support Opportunities:Scholarships abroad - Research Internship - Master's degree
Effective date (Start): February 01, 2013
Effective date (End): July 31, 2013
Field of knowledge:Agronomical Sciences - Agronomy - Soil Science
Principal Investigator:Luís Reynaldo Ferracciú Alleoni
Grantee:Alexys Giorgia Friol Boim
Supervisor: Maria Eduarda da Cunha Pereira
Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Research place: Universidade de Aveiro (UA), Portugal  
Associated to the scholarship:12/10591-3 - Derivation of critical limits of Cr, Cu, Ni, Pb and Zn in soils, BP.MS


The concentration of potentially toxic elements (PTEs) in the environment is a great concern. Because of human activity, their concentration may reach high levels, thus causing accumulation on the environment and consequently their input on food chain. Extractors such as 0.43 M HNO3 and 0.01 M CaCl2 are used to extract contents of PTEs linked to reactive and available pools in soil, and to assess the environmental and human health potential risks. Models derived from pedotransfer function estimate PTEs contents based on soil properties and on PTEs solid-solution transfer. Researchers have been using successfully pedotransfer models in soils samples of countries from temperate regions. Under humid tropical conditions, however, there are few studies, mainly in Brazil regarding this issue. Based on its importance, we aim to evaluate the reactive and the extractable pools of Cu, Cr, Ni, Pb and Zn in soils of São Paulo state using as 0.43 M HNO3 and 0.01 M CaCl2 extraction procedures. We also will estimate their availability by means of pedotransfer models as a function of the contents of the PTEs and soil physical, chemical and mineralogical properties. This study will be developed in the Department of Chemistry, University of Aveiro, Portugal, whose research group, in cooperation with the Institute Alterra Wageningen, Netherlands, is well established and has been extremely active when working with pedotransfer models for PTEs in soils. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BOIM, ALEXYS G. F.; RODRIGUES, SONIA M.; DOS SANTOS-ARAUJO, SABRINA N.; PEREIRA, EDUARDA; ALLEONI, LUIS R. F.. Pedotransfer functions of potentially toxic elements in tropical soils cultivated with vegetable crops. Environmental Science and Pollution Research, v. 25, n. 13, SI, p. 12702-12712, . (12/10591-3, 12/20858-7)

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