Composição química das águas pluviais e deposição atmosférica anual na bacia do Alto Sorocaba (SP)
Carregando...
Data
2011-01-01
Autores
Conceição, Fabiano Tomazini da [UNESP]
Sardinha, Diego de Souza [UNESP]
Navarro, Guillermo Rafael Beltran [UNESP]
Antunes, Maria Lúcia Pereira [UNESP]
Angelucci, Vivian Andréa [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Química
Resumo
Two sampling points were chosen and forty samples were collected between January and December 2006 at Alto Sorocaba basin. The rainwater pH varied from 5.46 to 6.36 (Ibiúna) and 5.26 to 6.81 (Itupararanga), being Ca2+ the main ion responsible for controlling the rainwater pH. The ionic concentrations decreased in the following order: Ca2 +>Na+> Mg2+>K+ for cations and SO4(2-)>HCO3->NO 3->Cl- >PO4(3-) for anions. The annual atmospheric deposition appeared to be controlled mostly by following sources: mining activities and cement factories (Ca2+ and HCO3-), natural soil dust (Na+, Mg2+ and HCO3-), fossil fuel burning (SO4(2-)) and agriculture activities (K+, NO3- and PO4(3-)).
Descrição
Palavras-chave
watershed, ionic composition, air pollution
Como citar
Química Nova. Sociedade Brasileira de Química, v. 34, n. 4, p. 610-616, 2011.