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An Assessment of Particulate Matter Pollution in Calabar, Nigeria 1Sunday O. Udo, 2*Mfon D. Umoh, 3Igwe O. Ewona, and 4Chinelo T. Okpalaonwuka 1Department of Physics, University of Calabar, Calabar, Nigeria. Author’s: E-mail Address ✉: soudo95@yahoo.com 2Department of General Studies, Maritime Academy of Nigeria, Oron. Nigeria. *Author’s Contact Details: E-mail Address ✉: mfonslago@yahoo.com; Mobile Phone no ☎: +(234) 8023719490 3Department of Physics, Cross River State University of Technology, Calabar, Nigeria. P.M.B. 1123 Calabar, Nigeria. Author’s: E-mail Address ✉: steveewona2007@yahoo.com 4Department of Physics University of Calabar, Calabar, Nigeria. Author’s: E-mail Address ✉: clegbor1207@yahoo.com Accepted August 23, 2020 The present investigation was carried out for assessment on the level of particulate matter (PM2.5, PM10, Total Suspended Particulate (TSP)) pollution in Calabar during (2015-2016). The result of the research showed that for PM2.5, Atamunu by Mount Zion station in Calabar is the most polluted in terms of PM2.5 concentration. While export processing zone (EPZ) tank farm was found to be the cleanest place in terms of PM2.5 concentration in ambient air. For PM10, NNPC tank farm station was found to have the highest concentration of PM10 in ambient air, hence the most polluted in terms of PM10. Cross River State University of Technology (Crutech) gate station had the least concentration of PM10. It is considered as the safest place to be in terms of PM10 pollution. For TSP, Crutech gate station has the highest concentration of TSP in ambient air. It is considered to be the most polluted in Calabar. The mean concentration of PM2.5 for all the stations under study fell below the Nigerian Nation air quality standard for PM2.5 which is 300µg/m3 for annual mean and 500 µg/m3 for 24hr mean. The mean concentration of PM10 for Ambo Market station which was 160.5µg/m3 was above the National standard of 120µg/m3 annual average and 150µg/m3 24hr average. At NNPC tank farm station, the mean concentration of 134.39µg/m3 was above the National standard of 120µg/m3 annual average. The concentration measured in the other stations were below the national standards. For TSP, the measured concentrations were below the National standard for all the stations. Key words: Pollution; concentration; quality; standard; stations. Full Text PDF (400 KB) |
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