Air pollution modeling surrounding Serdang Power Station

摘要

In this study, the level of NO_x and SO_2 concentrations in the surrounding areas of Serdang Power Station have been calculated using ISCST3 dispersion model. The 256 grids defined in area of 22km x 22km are accepted as receptor grids and the contribution of emission from the existing Serdang Power Station has been used as an input data. The maximum 1-hr averaging ground level concentration of NO_x and SO_2 predicted by the model are 134.17 μg/m~3 and 159.31 μg/m~3 at distance of 1.5 km southeast of the plant. However, these levels are well within the Malaysian Ambient Air Quality Standards 1990 and the World Health Organisation (WHO) Guidelines 1999. The model was validated by comparing the model output and actual field measurement with 95% of the accumulative frequency distribution by a factor of less than 2. Results of the study revealed that the ah- pollution dispersion from the Serdang Power Station are within the acceptable exposure limit to human health as stated in Malaysian Ambient Air Quality Standards 1990 and the World Health Organisation