Use of the remote sensing to obtained the dispersing of the traces pollutants concentration: Preliminary results to the city of Rio Grande, Southern Brazil

This paper aims characterized in the quantification of the air pollutants from fertilizer industry, in Rio Grande, south of Brazil. From samples collected in situ, radiometric data and hyperspectral imaging was possible quantify the regions which showed the largest precipitation of pollutants from the production of fertilizers. For soil samples, the values of sulfate, these results comprise a range 0.004–0.077 mEq. The lowest concentrations were cataloged NW of Rio Grande and in some localities the SW of the city industrial district. To the nitrate concentration, the highest percentages were cataloged in most of the urbanized area. The range of nitrate concentration was approximately 0.010–0.092 mEq. The concentrations of nitrates and sulfates, obtained by hyperion images showed maximum values of 0.092mEq and 0.338 mEq, respectively. Both samples showed a correlation of 76% with respect to pollutant concentration.