Evaluation of Air Pollution Burden from Contribution of Motorcycle Emission in Bangkok |
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| Authors: | Leong Shing Tet Muttamara S Laortanakul Preecha |
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| Institution: | 1. Environmental Engineering Program, School of Environment, Resource and Development, Asian Institute of Technology, G.P.O. Box 4, Klong Luang, Pathumthani, 12120, Thailand
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| Abstract: | This study investigated the relationship between exhaust emission from motorcycles and ambient air quality in Bangkok Metropolitan Region (BMR). The test result revealed that averagepollutant concentrations of the test motorcycles in terms of hydrocarbon, carbon monoxide and nitrogen dioxide were 8.38, 16.69 and 0.04 g km-1, respectively. The finding also indicated that two-stroke motorcycles emitted 1.5 and 5 times more carbon monoxide and hydrocarbon emission, respectively perkilometer driven than do four-stroke motorcycles. Four air sampling stations were strategically established to evaluate the air pollution problems in Bangkok arising from vehicle exhaust emission. Investigation was carried out to determine the correlation between average air pollutant concentration with different traffic configuration in each traffic zone of Bangkok Metropolitan Region (BMA) during peak/non peak hours, day/night times and weekday/weekend. The average concentrationsof PM10 particulate matter, carbon monoxide, nitrogen dioxide and sulphur dioxide in Bangkok street air were found tobe 84.33 μg m-3 (24 hr ave.), 7.05 mg m-3 (8 hr ave.), 56.74 μg m-3 (1 hr ave.) and 9.60 μg m-3 (24 hr ave.), respectively. |
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