Abstract
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Article Information:
Particulate Matter and Black Carbon Concentration Levels in Ashaiman, a Semi-Urban Area of Ghana, 2008
Sam-Quarcoo Dotse, Joshua Kwame Asane and F.G. Ofosu
Corresponding Author: Sam-Quarcoo Dotse
Submitted: 2011 April, 16
Accepted: 2011 June, 02
Published: 2012 January, 01 |
Abstract:
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Particulate matter and black carbon concentration levels in Ashaiman, a semi-urban area of Ghana
was assessed. Using IVL PM2.5 and PM10 particle samplers, airborne particulate matter was sampled on Teflon
filters for a period of three months. In addition to determination of particulate mass in the two fractions by
gravimetrical method, aerosol filters were analyzed to determine Black Carbon (BC) concentration levels using
the black smoke method. BC fractions in fine and coarse, together with PM2.5 to PM10 ratio were determined.
PM2.5 mass concentrations determined averaged 23.26 μg/m3 (3.85 - 46.43 μg/m3) and that of PM10 was 96.56
μg/m3 (37.10-293.06 μg/m3). The results were compared with some literature values and World Health
Organization guideline values. The values obtained for PM2.5 to PM10 ratio and for PM10-2.5 concentrations,
suggest that, the semi-urban background aerosol is not only largely made up of combustion generated
carbonaceous particles but also particulate matter emissions from natural activities.
Key words: Airborne particulate matter, ashaiman, black carbon, black smoke method, gravimetric method, particle samplers,
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Cite this Reference:
Sam-Quarcoo Dotse, Joshua Kwame Asane and F.G. Ofosu, . Particulate Matter and Black Carbon Concentration Levels in Ashaiman, a Semi-Urban Area of Ghana, 2008. Research Journal of Environmental and Earth Sciences, (01): 20-25.
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ISSN (Online): 2041-0492
ISSN (Print): 2041-0484 |
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