IMPACT OF VEHICULAR EMISSION TO AIR QUALITY IN THE FEDERAL CAPITAL TERRITORY (FCT) ABUJA, NIGERIA

This project report presents the results of the investigation of vehicular emission in selected roads leading into the Federal Capital Territory (FCT) Abuja. Three areas MP’A\ MP’B\ and MP’C’ were considered with sampling points (SP1 - SP13) in each sampling location, observations were carried out at a safe distance away from the edge of the road in downwind direction, the Ground Positioning System (GPS) of the locations were taken. Priority parameters such as: Sulphur Dioxide (SO2), Nitrogen Dioxide (NO2), Carbon Monoxide (CO) was monitored. Noise level and Ambient Temperature were monitored as well as traffic count at the sampling points. The mean daily levels of pollutants SO2, NO2, CO, measured were found to be ranged between 1.3 - 1.65ppm, 0.12

• O.Mppm and 1.71 - 10.57ppm for Keffi - Abuja road, Suleja - Kubwa road 1.22 - 1.75ppm, 0.11 - O.Mppm, and 1.24 -3.13ppm, City Gate - Airport road 1.33 - 1.73ppm, 0.11 - O.Mppm and 1.21 - 3.09ppm respectively. With the exception of Guzape road (the control station) mean pollutants levels was found to be ranged between 0.67 - 0.97ppm, 0.02-0.07ppm, and 1.00 - 1.04ppm for SO2, NO2, and CO respectively. Average noise level measured was 70dB while Ambient temperature was 30°C. All the monitored air pollutants when compared with USEPA Air Quality Index (AQI) were in the range - SO2 from very poor to poor, NOx- from very poor to poor, and CO from poor to moderate and moderate to poor in different locations. The overall comparison of data for different sections show that concentration of pollutants is higher than USEPA AQI and the National Standard at all the three areas MP’A’, MP’B’, and MP’C’ due to volume of traffic. This shows that the air quality is very poor and it implies that motor vehicle emission in the FCT are not within the safe limits, and that motor traffic-related pollution in the FCT is a potential hazard to the environment and human health.