Biogeochemistry of metals in aquatic environments and in the atmosphere. Part I: Chemical speciation of metals in rainwater

• Grant number: 03/01532-4
• Support Opportunities: Regular Research Grants
• Start date: November 01, 2003
• End date: November 30, 2007
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Maria Lúcia Arruda de Moura Campos
• Grantee: Maria Lúcia Arruda de Moura Campos
• Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil

Abstract

In this project the proposal is to evaluate the chemical speciation of several metals (Cu, Cd, Pb, Zn and Al) and the concentrations of organic carbon dissolved in rainwater, with the objective of investigating some of the physical-chemical mechanisms which may alter metallic species in the atmosphere and, consequently, the species that will be deposited in the aquatic environment. The rain samples will be collected principally in Ribeirão Preto, and possible seasonal differences in the deposition of metals and organic matter will be investigated. The concentrations of metals in the dissolved phase and the lixiviatable metals (pH 1) of the particulate phase will be evaluated by cathodic stripping voltammetry. This study aims to provide a contribution to the clarification of the role of organic matter and of the photochemical reactions in the alterations of the physical- chemical properties of metals in the atmosphere. (AU)

Scientific publications

(4)

(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)

COELHO, C. H.; FRANCISCO, J. G.; NOGUEIRA, R. F. P.; CAMPOS, M. L. A. M.. Dissolved organic carbon in rainwater from areas heavily impacted by sugar cane burning. Atmospheric Environment, v. 42, n. 30, p. 7115-7121, SEP 2008. (03/01532-4)

COELHO, CIDELMARA H.; ALLEN, ANDREW G.; FORNARO, ADALGIZA; ORLANDO, EDUARDO A.; GRIGOLETTO, TAHUANA L. B.; CAMPOS, M. LUCIA A. M.. Wet deposition of major ions in a rural area impacted by biomass burning emissions. Atmospheric Environment, v. 45, n. 30, p. 5260-5265, SEP 2011. (03/01532-4, 09/07415-6, 03/01194-1)

URBAN, R. C.; ROMERO, J. R.; CAMPOS, M. L. A. M.. Development of a portable sensor to evaluate copper speciation in natural waters. ANALYTICAL METHODS, v. 10, n. 17, p. 2056-2063, MAY 7 2018. (03/01532-4)

CAMPOS‚ M.; NOGUEIRA‚ RFP; DAMETTO‚ PR; FRANCISCO‚ JG; COELHO‚ CH. Dissolved organic carbon in rainwater: Glassware decontamination and sample preservation and volatile organic carbon. Atmospheric Environment, v. 41, n. 39, p. 8924-8931, 2007. (03/01532-4)