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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/6173

Title: Traffic-data driven modelling of vehicular emissions using COPERT III in Ghana: A case study of Kumasi
Authors: Agyemang-Bonsu, K.W.
Dontwi, I. K
Tutu-Benefoh, D.
Bentil, D.E
Boateng, O. G.
Asuobonteng, K.
Agyemang, W.
Issue Date: 2010
Publisher: American Journal of Scientific and Industrial Research
Citation: American Journal of Scientific and Industrial Research;2010; Vol.1(1): 32-40
Abstract: The last decade witnessed progressive increase in number of vehicles in Ghana, in major cities, Accra, Tema and Kumasi. The growth in numbers of vehicles has significant affect on urban lifestyle and generates economic opportunities. However, the rise in vehicle fleet presents greater challenge to urban authorities, particularly; increased traffic congestion could seriously deteriorate air quality leading to climatic variability and related health problems. In this study, data on vehicular speed, mileage, fleet population, fuel consumption and quality, temperature were used as input into traffic-based COPERT III model to generate vehicular emissions over five years (2000-2005) for different categories of vehicles. Total emission levels generally increased from 682.3Gg in 2000 to 883.4 in 2005. Greenhouse gases increased from 665Gg in 2000 to 860.3Gg in 2005 with CO2 constituting an average of 97.6%. The remaining 2.1 and 0.3% are respectfully accounted for by CO2 equivalent of non-CO2 gases (CH4 and N2O). CO increased steadily from 8.55Gg to 11.5Gg whereas NOx marginally increased from 5.4Gg to 7.3Gg. PM10 levels increased from 0.2Gg to 0.35Gg. Both SO2 and PM10 emissions trend flattened initially and later rose gradually. Both VOC and NMVOC increased from 1.3Gg to 1.8Gg and 1.2Gg to 1.7Gg respectively. Conventional vehicles dominate fleet stocks in Kumasi and contribute greatly to vehicular emissions in all categories due to increasing importation of over-aged vehicles, coupled with the hugely populated older vehicles resident in the Kumasi. Continuing improvements of fuel quality, maintenance schedules, traffic management and pursuing alternative sustainable transport options are some of the practical actions recommended for improving traffic emissions
Description: An article published by American Journal of Scientific and Industrial Research;2010; Vol.1(1): 32-40
URI: http://hdl.handle.net/123456789/6173
Appears in Collections:College of Agric and Natural Resources

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