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Composição química das águas pluviais e deposição atmosférica anual na bacia do Alto Sorocaba (SP) Translated title: Rainwater chemical composition and annual atmospheric deposition at Alto Sorocaba basin (SP)

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      Translated abstract

      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-)).

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      Most cited references 29

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      Phase transitions in pyrolitic mantle around 670-km depth: Implications for upwelling of plumes from the lower mantle

       Kei Hirose (2002)
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        Environmental Chemistry

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            Author and article information

            Affiliations
            [1 ] Universidade Estadual Paulista Brazil
            [2 ] Universidade Estadual Paulista Brazil
            Contributors
            Role: ND
            Role: ND
            Role: ND
            Role: ND
            Role: ND
            Journal
            qn
            Química Nova
            Quím. Nova
            Sociedade Brasileira de Química (São Paulo )
            1678-7064
            2011
            : 34
            : 4
            : 610-616
            S0100-40422011000400011 10.1590/S0100-40422011000400011

            http://creativecommons.org/licenses/by/4.0/

            Product
            Product Information: SciELO Brazil
            Categories
            CHEMISTRY, MULTIDISCIPLINARY

            General chemistry

            watershed, ionic composition, air pollution

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