Abstract:
This research work is aimed at analyzing the impact of local meteorological factors on air pollution concentration variability in Akure Suburb and Urban areas. The study investigated the relationship between meteorological factors and air pollution in the Urban and suburb of Akure city; investigated the diurnal variation of air pollution; and evaluated the pollutant concentration level at various locations in Akure. Carbon monoxide (CO) and Carbon dioxide (CO2) as the pollutants were measured in five locations in Akure metropolis. The locations include: Oba kekere, Ilesha garage, Oja Oba, Alagbaka and Ijapo Estate. Meteorological variables such as temperature, relative humidity, wind speed and direction were considered. CO2 at Ijapo station showed a positive correlation with relative humidity, this implies that CO2 increases with increasing Relative humidity. At Ilesha garage, there is a moderate correlation between CO2, Air temperature and Relative humidity and no correlation with wind speed. CO2 at Oja Oba also showed moderate correlation with Air temperature and Relative humidity. At Oba Kekere, CO2 showed no correlation with any of the Meteorological parameters. Meanwhile, at Alagbaka, CO2 showed a strong negative correlation with Air temperature and positive correlation with Relative humidity. From the study, daily observed CO had a strong relationship with previous day’s value. Oja Oba has the highest mean level of CO while the highest mean level of relative humidity was observed at Oba Kekere and highest wind at Alagbaka. Only temperature has a positive correlation with CO but both relative humidity and wind speed are negatively correlated with CO. The effect of wind speed is significant while the effect of temperature and Relative humidity are not significant. Wind speed has much influence on the concentration of CO over the study area.
