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|Title:||Contributions to CO concentrations from biomass burning and traffic during haze episodes in Singapore|
|Source:||Mukherjee, P., Viswanathan, S. (2001). Contributions to CO concentrations from biomass burning and traffic during haze episodes in Singapore. Atmospheric Environment 35 (4) : 715-725. ScholarBank@NUS Repository. https://doi.org/10.1016/S1352-2310(00)00286-7|
|Abstract:||Prediction of ambient carbon monoxide (CO) due to haze in the presence of transportation sources at a busy expressway site in Singapore was made using street Canyon and Gaussian line source modules of a regional-scale Indic Airviro dispersion model for the haze episodes that occurred in the years 1994 and 1997. The fleet average emission factors for each vehicle category were estimated from US EPA MOBILE 5 A guidelines as a function of speed, vehicle deterioration rates and model years. One hour CO concentrations during the non-haze period for the year 1995 were first simulated and compared with measured readings to test the accuracy of the proposed approach. The calibrated model was then used to compute hourly CO values for the 1994 and 1997 haze episodes. The difference between the modeled CO values with and without haze provided CO contribution due to haze. An analysis of CO values estimated through modeling with experimental measurements made during haze periods confirmed this unique approach to establish concentration of CO due to haze in the presence of transportation sources. Copyright (C) 2001 Elsevier Science Ltd.|
|Source Title:||Atmospheric Environment|
|Appears in Collections:||Staff Publications|
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