Distribution of air quality data across stratified areas of Port Harcourt metropolis

Onyedika Ebube Onyiliofor 1, *, Godwin Udom 2 and Richmond Ideozu, 2

1 Institute of Natural Resources and Environmental Studies, University of Port Harcourt, Nigeria.
2 Department of Geology, University of Port Harcourt, Nigeria.
 
Research Article
International Journal of Science and Research Archive, 2024, 13(01), 3001–3008.
Article DOI: 10.30574/ijsra.2024.13.1.2021
Publication history: 
Received on 13 September 2024; revised on 19 October 2024; accepted on 22 October 2024
 
Abstract: 
Distribution of Air Quality Data across seven stratified areas of Port Harcourt Metropolis was carried out. The study utilized a total of 18 parameters from four different air quality datasets obtained from 24 sampling points during field data collection. The sampling points were structured and stratified into residential, industrial, commercial, recreational, transport, dumpsite and abattoir areas. Air quality data were acquired using a multi-digital potable tool, Aerosol Gas Monitor and TESTO Gas Analyser for meteorological data, particulate matters (PM), gaseous emissions and heavy metals. Results showed that the concentrations of air quality data were not evenly distributed across the seven stratified areas, an indication of the influence of location-based activities on the distribution of air quality parameters. The minimum and maximum values of wind speed, temperature and relative humidity were obtained within Residential and Transport Areas, Abattoir and Dumpsite Areas, and, Industrial and Recreational Areas with numerical values of 1.1ms-1 and 3.7ms-1, 27.20C and 350C, and, 67.8% and 923% for wind speed, temperature and relative humidity respectively. The values of TSP, PM2.5 and PM10 ranged from 53 to 255 μg/m3, 13 to 90 μg/m3 and 40 to 169μg/m3 for TSP, PM2.5 and PM10 respectively with the lowest and highest values obtained within Residential and Dumpsite Areas respectively. The concentrations of NO2 and SO2 exceeded the standards of WHO, NAAQS and FMEnv in Industrial, Dumpsite and Abattoir Areas. Lead ( Pb) showed very high values within Dumpsite Area (0.954mg/kg), Industrial Area (0.372mg/kg) and Transport Area (0.077mg/kg).
 
Keywords: 
Air Quality; Meteorological Data; Particulate Matter; Gaseous Emissions; Stratified Areas; Port Harcourt Metropolis
 
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