Spatial and Temporal Variations in the Concentrations of Particulate Matter in Ambient Air from Three Different Locations in River State, Nigeria

R.E. Ekpo¹ , A.C. Marcus² , E.O. Obruche³

Section:Research Paper, Product Type: Journal-Paper
Vol.10 , Issue.4 , pp.32-38, Aug-2023

Online published on Aug 31, 2023

Copyright © R.E. Ekpo, A.C. Marcus, E.O. Obruche . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
This research study was conducted due to growing industrial activities and the associated consequences around the study areas to evaluate the temporal and spatial variations (changes) in the concentrations of particulate matter in ambient air from Eleme,Aluu and Ikoku in Rivers state, Nigeria. The duration of this study lasted from April, 2021through January, 2022 which covered both dry and wet seasons. Particulate matters in ambient air were collected from these three different locations using air sampler (Mini volair sampler) as directed by(APHA). During the dry season, mean concentrations of Eleme was reported to be 40 ±10 µg/m3 and 60 ±026 µg/m3 for PM2.5 andPM10 respectively. Ikoku was reported to be 30 ±01 µg/m3 and 64 ± 024 µg/m3. While Aluuhad mean concentrations of 50 ±10 µg/m3 and 60 ±116 µg/m3. The result showed thatIkoku had the highest mean concentration of particulate matter. During the raining (wet) season, Eleme had a mean concentration of 27 ±16 µg/m3 and 37 ±30 µg/m3 for PM2.5 and PM10respectively. The mean concentrations of Ikoku were reported to be 23 ±08 µg/m3 and 35±14 µg/m3. Aluu was reported to be 13 ± 06 µg/m3 and 13 ± 06 µg/m3. Analyzed results clearly showed that the particulate matter concentration in the atmospheric region of the studied locations during the wet season, are above the WHO permissible limit for PM2.5 (12 µg/m3)and below the WHO permissible limit for PM10 (45 µg/m3 for PM10). The results of this research are clear indication that the ambient air within the study areas is quite polluted. Judging from the concentrations of PM recorded, it is recommended that the industries operating within the studied areas should be adequately monitored and control by established regulatory agencies to curtail and minimize further emission of these substances into the atmosphere, in order to make Port Harcourt a livable city for people.

Key-Words / Index Term :
Particulate matter, Eleme, Ikoku, Aluu, Samples, WHO

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