Maria de Fátima Amdrade

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Rainwater samples of the city of SÃo Paulo collected from December 1993 to April 1995 were analyzed for sulfate, nitrate, chloride, and amonium ions by ion chromatography, for Al, As, Cr, Fe, K, La, Mn, Na, Sm, and Zn by instrumental neutron activation analysis, and pH. Correlation and regression analysis indicated that H+ is more closely associated with(More)
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