The Influence of Phosphate Mining on the Chemical Composition of Annual Atmospheric Deposition in Catalao (GO) and Tapira (MG), Brazil

Autor(es)

da Conceicao, Fabiano Tomazini ^{[1, 2]} ; Litholdo, Taise ^[1] ; Sardinha, Diego de Souza ^[3] ; Moruzzi, Rodrigo Braga ^[1] ; Beltran Navarro, Guillermo Rafael ^[1] ; Godoy, Leticia Hirata ^[1]

Afiliação do(s) autor(es)

^[1] UNESP, IGCE, Rio Claro, SP - Brazil

^[2] Ave 24-A, 1515, BR-13506900 Sao Paulo - Brazil

^[3] UNIFAL Univ Fed Alfenas, Inst Ciencia & Tecnol, Pocos De Caldas, MG - Brazil

• Tipo de documento: Artigo Científico
• Fonte: WATER AIR AND SOIL POLLUTION; v. 227, n. 3 MAR 2016.
• Citações Web of Science: 0

Resumo

Brazil is an important country within the global mineral industry. The main reserves of phosphate rock in Brazil are contained in the states of Goias and Minas Gerais, at the Catalao and Tapira cities, respectively. Atmospheric inputs due to the mining of phosphate rock may have various effects on human health in areas near these types of mines. Thus, this work evaluated the influence of phosphate mining on the chemical composition and annual atmospheric deposition in Catalao (GO) and Tapira (MG), Brazil. The pH of rainwater was 6.90 in Catalao and 6.80 in Tapira. The ionic concentrations (in mu eq/L) at both study sites decreased in the following order: Ca2+ > Na+ > Mg2+ > K+ for cations and HCO3- > NO3- > SO42- > PO43- > F- > Cl- for anions. High Ca2+ content indicates that Ca2+ contributes to the neutralisation of the rainwater pH in both of the areas studied. The annual atmospheric deposition of NO3- and SO42- can be attributed to the use of diesel-powered trucks in and around mining areas. Soil dust derived is responsible for the annual atmospheric deposition of Na+ and K+. Phosphate mining activities are the main source of the annual atmospheric deposition of PO43- and F-. (AU)

• Processo FAPESP: 06/54884-3 - Avaliação das taxas de alteração e influências antropogênicas na bacia do Alto Sorocaba (SP)
• Beneficiário: Diego de Souza Sardinha
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 06/55477-2 - Avaliação da qualidade da água e diagnóstico ambiental na bacia do Alto Sorocaba (SP)
• Beneficiário: Mauro Henrique Dourador de Salles
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 06/61208-4 - Avaliação da qualidade da água pluvial e interação água/rocha-solo na bacia do Alto Sorocaba (SP)
• Beneficiário: Vivian Andrea Angelucci
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 05/59203-1 - Avaliação das taxas de alteração e geocronologia dos perfis supérgenos de Tapira (MG) e Catalão (GO)
• Beneficiário: Fabiano Tomazini da Conceição
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores