Air pollutions pollutant showed that the extent of spreading depends on the motor vehicle traffic population of the area. This pollution strongly generated through combustion of fossil fuels presents difficult environmental challenge to societies as it could degrade the environment and affect human health and quality of life. Vehicular emissions are major contributors to air pollution in urban areas as they contain harmful gases. The levels of carbon monoxide has been investigated in two locations of Enugu metropolis (high traffic ‟old park‟ and low traffic „caritas university‟), in order to determine its pollution status with regards to air. EL-USB-CO analyzer used for the analysis indicated variations in the levels of CO for the period of study. The results obtained revealed that the concentrations of CO in high traffic (HT) area is higher than that of low traffic (LT) and is unacceptable compared with the Federal Environmental Protection agency (FEPA) Nigeria set limit. The dispersion pattern of the suggests that vehicular emission contributes to the levels of carbon monoxide in the environment.
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