Measurement of the Levels of Carbon Monoxide Concentrations at Major Stalling Traffic Points in Minna, Niger State, Nigeria

Abstract

This project was undertaken so that the levels of carbon monoxide concentrations at the major stalling traffic points in Minna could be determined. These stalling traffic points of Minna were initially georeferenced, the values archived on the Minna GIS, and then CO levels were measured at some of these stations during the morning, afternoon, and evening hours. The dataset acquired for this survey indicates that 22 stations (of the 33 stations occupied) had CO values greater than the 10ppm threshold for the morning hours, 15 stations (of the 16 occupied) had CO values greater than the 10ppm threshold for the afternoon hours, whilst 8 stations (of the 17 occupied) had CO values greater than the 10ppm threshold for the evening hours. Thus, for the time of day when traffic warden personnel are active in Minna (morning and afternoon hours) most of them would be continually exposed to hazardous levels of CO 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 CO level layer at stalling traffic points in Minna.