On The Relationship between Atmospheric Pollutants and Meteorological Parameters along Major Traffic Corridors in Port Harcourt Metropolis, Nigeria

Abstract

This study analyzes the relationship between atmospheric pollutants concentration and meteorological parameters at bus terminals in Port Harcourt, Nigeria. Data on both atmospheric pollutants with their meteorological variables were collected with the aid of multi-Gas Monitor and Extech weather station respectively at five major bus terminals.  Data were analysed using the Pearson’s Product Moment Correlation Coefficient, Step-Wise Multiple Regression and Analysis of Variance (ANOVA). Findings indicate that that Relative humidity (RH) had low correlation with PM1 (0.343) and CO (0.146) but inversely correlated with SO2 (r = -0.476). However, RH had a positive significant relationship with PM2.5, SO2, and VOC (r = 0.548, 0.629 and 0.595 respectively at p = 0.05). Temperature had a significant but inverse relationship with PM2.5, SO2, and VOC (r = -0.524, -0.641 and -0.6 12 at p = 0.05) and a direct significant relationship with NO2 (r = 0.712) and CO2 (r = 0.553.  Wind speed showed a weak relationship with PM1 and CO2 (r = 0.010 and 0.205) but inversely and significantly correlated to PM7, PM10, TSP, CO, PM2.5, SO2 and VOC (r = -0.398, -0.398, -0.436, -432, -0.575, -0.864 respectively). Concentrations of pollutants were elevated because of calm atmospheric conditions prevailing at the bus terminals.

Keywords: Air Pollution, Bus terminals, carbon monoxide, emission concentration, vehicular emissions


Article Review Status: Published

Pages: 15-25 (Download PDF)

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