Diseño del modelo de dispersión de ozono troposférico de la ciudad de Riobamba para el año 2015.

Abstract

In this research was carried out the design of the dispersion model of tropospheric ozone in Riobamba city for the year 2015. Dispersion maps were developed by implementing the IDW (Inverse Distance Weighting) interpolation model, in addition to a wind analysis, with the WRPLOT View software, from data speed and wind direction. The statistical analysis was implemented based on bivariate correlations determining the relationship between the variables for which, the annual average were calculated, determining whether they exceeded the values established in Ministerial Agreement 097-A Reform of Book VI Annex 4 of TULSMA. Scatter maps indicated that the concentration of O3 varied as a function of the concentrations recorded by its predecessor the NO2, in the sectors where concentrations of NO2 (86.25 μg/m3) were higher, there were lower concentrations of O3 increased (39.87 μg/m3), while in sectors where NO2 levels decreased (21.26 μg/m3) O3 concentrations increased (59.79 μg/m3), this ratifies with the Pearson correlation coefficient, which indicated that between NO2 and O3 there is an inverse correlation with a coefficient of -0.249. It was determined the annual average concentration for NO2 , this isof 32.86 μg/m3 and 25.14 μg/m3 for O3, concentrations that did not exceed the maximumpermissible limits established by the standard. It is recommended that a larger number of monitoring stations be installed within the urban perimeter, that allow to know with greater certainty the behavior of the ollutants in study, for this consider the vehicular traffic, green areas and peripheral areas.