<b>Study of the ion and organic matter depositons through pluviometric precipitations</b> - doi: 10.4025/actascitechnol.v33i4.7526

Abstract

Excepted water, in the atmosphere, the minority compounds are CO₂, CO, CH₄, NO_x, SO₂, NH₃, among others, that are being disposed because they become sub products of the life metabolism or result of the humans activities. Common ions of the ocean water or soil like Na⁺, K⁺, Ca²⁺, Mg²⁺ may be disposed in the atmosphere through the wind. All of theses compounds, or still reactions product that occurs can be incorporated in the rain, and deposited on planet surface. The purpose of present work, is evaluate the depositions of H⁺, NO₃^-, SO₄²⁺, Cl^-, NH₄⁺, Na⁺, K⁺, Ca²⁺, Mg²⁺ and also organic matter, through rain water sample that were collected from March to May 2007 at urban region the Ponta Grossa city, Paraná State, haven like a purpose to measure their deposition and to relate with the pluviometric precipitation happened. The results showed oscillations that depends of the precipitation, also these values for the individual species concentration declines when the precipitations occurs day after day and the lowest pH was 4.9, associate the HNO₃ deposition.