Air Quality Index of CO and NO₂ in Ambient Air of Jemita/Yola Metropolis, Adamawa State, Nigeria

摘要

This study was aimed at monitoring the ambient air quality along some busy locations within Jimeta/Yola Metropolis of Adamawa State, Nigeria. The study was conducted from July, 2015 to March, 2016. Crowcon Gasmann portable gas monitor model CE-89/336/EEC was used for the monitoring of CO and NO₂, at ten different locations. The result indicate that the concentration of CO and NO₂ were high during the dry season at all the locations especially at location 9 and 7 where the concentrations obtained are 19.41 and 15.00 ppm for CO and NO₂ respectively. These values of CO and NO₂ pollutants at some locations were found to be above the acceptable limit (10.00 ppm) for the air quality index AQI stipulated by the Federal Environmental Protection Agency FEPA and World Health Organization WHO. This indicates that, the atmospheres within Jimeta/Yola metropolis was poor, revealing that population is a threat to air pollution which may pose health risk. Hence, based on these findings, preventive measures and sustainable solutions such as effective vehicle inspection, enforcement of legislations, and supply of electricity (necessitating the use of electricity generating sets) should be enforced among others to ensure safe environment for the living systems to live as these practices increase the levels of CO and NO₂ in Nigerian cities.