This study investigates atmospheric carbon dioxide (CO2) pollution high risk zone with hot spot map and annual seasonal variation for a period of eleven years between 2005 and 2016 in the Federal Capital Territory (FCT). This paper is aiming to evaluate spatial distribution of carbon dioxide (CO2) pollutant concentration in the Capital City of Nigeria. This investigation was carried out in the Federal Capital City of Nigeria from 2005 to 2016 to examine contribution of carbon dioxide emission in deferent land use and land cover. The dissertation utilized satellite imagery from NigeriaSat-X of 2012 with spectral ranges 0.52 to 0.62µm, 0.63 to 0.69µm and 0.7 to 0.9µm respectively. The three bands (i.e. Green, Red and Near infra-red) are closely related to those of bands 2, 3 and 4 of Landsat-7. Source of air quality data for carbon dioxide is from Giovanni NASA data base (global data source) with resolution of 0.5 by 2.5 degree.

Keywords : Carbon Dioxide Concentration, Variation, Risk Zone, Remote Sensing, GIS.