This book assessed air quality along selected area of interest in Mpape Area of the FCT, Nigeria. Particularly, it examined air quality variation in the heavily built areas, industrial areas, and control sites areas in Mpape. The experimental research was employed and air quality variables such as NH3, NO2, SO2, H2S CO2 and PM10 and PM25 were quantitatively gathered in the field using standard methods and equipments such as Minivol Portable Air Sampler, A set of Crow Can Dictator Meter, and GPS. Traffic volume along selected land uses in the three locations was obtained through traffic count approach. Data obtained were analyzed using averages, ANOVA, Pearson's correlation, cluster analysis and Factor analysis.