Understanding the Nature of Wet Air Deposition on Rooftops in Uyo Metropolis

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A.P., Ihom; D.K., Uko; I.E., Markson; O.C., Eleghasim

Understanding the Nature of Wet Air Deposition on Rooftops in Uyo Metropolis Journal Article

Mechanics, Materials Science & Engineering, 12 , 2017, ISSN: 2412-5954.

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Authors: Ihom A.P., Uko D.K., Markson I.E., Eleghasim O.C.

ABSTRACT. The work titled Understanding the Nature of Wet Air Deposition on Rooftops in Uyo Metropolis was Carried out by determining the extent of air pollution in four different places in Uyo metropolis. Attair 5X was used to determine the gaseous pollutants in the wet air, while filtration technique using High Volume Sampler was used to determine the suspended particulates in the air, and the concentration was calculated in mg/l over a 24hrs period. The composition of the deposition on the rooftops was analysed using EDX-X-Ray Fluorescence (EDX-XRF) and the characterization of the deposit was done using Scanning Electron Microscope (SEM). The result of the work showed that gas pollutants existed in all the four stations but were not to the level of health concern since air quality standard specifications were not exceeded. However, impact on rooftop was noted since SO3 was in the composition of the deposit on the rooftops. The suspended particulate matter exceeded air quality standard value of 200 µg/m3 in all the four stations, and so was of both health and environmental concern since it influenced the deposition on the rooftops. The SPM composition elements were also found in the composition of the deposits on the rooftops. SEM characterized the dark-black deposit on the rooftop and the micrograph showed areas of high and low deposition on the roofs. The study concluded that a better understanding of the nature of wet air deposition on rooftops in Uyo metropolis has now been established.

Keywords: wet air, nature, pollutants, particulates, deposition, rooftops, Uyo metropolis

DOI 10.2412/mmse.34.45.452


[1] Asanusung, K.E. (2014) Investigation of the possible causes of Aluminium Roofing Sheet Discolouration and its remedy: A Case Study of the University of Uyo Male Hostel Roof, Permanent Site, PGD Project, Department of Mechanical Engineering University of Uyo, Uyo, Nigeria.

[2] Bhatia, S.C.(2008) Environmental Chemistry, 4th Edition Reprint, published by Satish Kumar Jain for CBS Publishers & Distributors, Darya Ganj, New Delhi (India) p. 1-20.

[3] Dara, S.S. (2007) A Text book of Environmental Chemistry and Pollution Control, Seventh Reprint, S. Chand and Company Ltd, Ram Nagar New Delhi, p. 24-31.

[4] Dangelo, S. (2016), How White Roofs Can Help Your Home Cool, assessed at http//www.dangeloandson.com.

[5] Ihom, A.P. (2014) Environmental Pollution Prevention and Control: The Current Perspective (A Review), Journal of Multidisciplinary Engineering Science and Technology (JMEST), Vol. 1 Issue 5, 93-99.

[6] Ihom, A.P. and Offiong, A. (2014) Zinc-Plated Roofing Sheets and the Effect of Atmospheric Pollution on the Durability of the Sheets, Journal of Multidisciplinary Engineering Science and Technology (JMEST), Vol. 1, Issue 4, 125-132.

[7] John, A.J. (2016) Combustion Analysis of Vehicular Emission: Effect on Air Quality in Uyo, Akwa Ibom State-Nigeria, M. Eng Degree Dissertation in the Department of Mechanical Engineering, University of Uyo-Nigeria

[8] Okedere, O.B. and Elehinafe, F. (2016) Particulate Pollution from Diesel Generators of Mobile Telecommunication Industries in Lagos Nigeria, UniOsun Journal of Sciences, vol.1 (1), 37-42

[9] Ola, S.A., Salami, S.J., Ihom, P.A.(2013) The Levels of Toxic Gases; Carbon Monoxide, Hydrogen Sulphide and Particulate Matter to Index Pollution in Jos Metropolis, Nigeria, Journal of Atmospheric Pollution, Vol. 1, No. 1, 8-11.

[10] Sabin, L.D.J.H., Lim, K.D., Stolzenbach, and Schiff, K.C. (2005) Contribution of Trace Metals from Atmospheric Deposition to Storm Water Runoff in a Small Impervious Urban Catchment, Water Research 39(16):3929-3937

[11] Thomas, S.K., Greene, M.T. (1993) Effect of Seasonality on Rain Water Quality in California, Journal of Applied Biotech, 1(2): pp18-23

[12] E. A. Tice (1962) Effects of Air Pollution on the Atmospheric Corrosion Behavior of Some Metals and Alloys, Journal of the Air Pollution Control Association, 12:12, 553-559, DOI 10.1080/00022470.1962.10468127

[13] WHO (2014), WHO Report Worsening Air Quality in Cities. The Guardian Mobile, 7 May, 2014

[14] Woods, J. (2017) Reflective Surfaces (Geoengineering) Accessed at http//en.wikipedia.org/

[15] Foster, J. (1996) Patterns of Roof runoff contamination and their Potential Implications on Practice and Regulation of Treatment and local infiltration, Water Science and Technology. 33 (6):pp39-48

[16] Zobrist, J., Muller, S.R., Bucheli, T.D. (2000) Quality of Roof Runoff for Groundwater Infiltration, Water Resources, 34: 1455

[17] Brandenbergen, C.P. Julius, M., Remteke, S.G. (2011). Chemical and Biometric Analysis of Puget Sound Basin, Pakistan-Journal of sciences 4 (1): pp. 111-618

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