Determination of Concentrations of Sulphur Dioxide at Major Stalling Traffic Points in Minna, Niger State, Nigeria

Abstract

This project was undertaken to determine the concentrations of sulphur dioxide (SO2) at the different major stalling traffic points in Minna and to create a Geographic Information System (GIS) layer of SO2 pollution at these stalling traffic points; forty (40) such major stalling traffic points were identified in Minna. These major stalling traffic points of Minna were initially georeferenced, the values archived on the Minna GIS, and then SO2 levels were measured at some of these stations during the morning, afternoon, and evening hours. The dataset acquired for this survey indicates that no value of SO2 up to and above the threshold of 0.2ppm was measured at any of the stalling traffic points occupied in the course of this survey. Thus, for the time of day when traffic warden personnel are active in Minna (morning and afternoon hours) none of them would be exposed to hazardous levels of SO2 emissions; if they were to work into the evening hours, the exposure regime would be unchanged. The final result of this exercise is now a GIS SO2 level layer at stalling traffic points in Minna.