A review: air pollutant index in Selangor for year 2012

Air pollution becomes one of the major issues in Malaysia but luckily, Malaysia is not in critical level if compared to other countries such as India, China and Indonesia. The Air Pollutant Index (API) is one of the system that established by Department of Environment (DOE) to range the air quality from good to hazard. The aims of this study is to review a trend of air pollutant in atmosphere that involved in Selangor for year 2013 which involved five monitoring stations. To accomplish the study, graph of five parameters of pollutants (SO₂, NO₂, CO, O₃ and PM10) were plotted against time. Based on the results, the relationship of pollutant parameter and the factor that contributes to the trend was determined. From the analysis of graph, it was found that the major pollutant in air pollution in Selangor was PM10, followed by CO, O₃, NO₂ and the lowest concentration were SO₂. Besides that, it was found that, the most polluted area in Selangor was observed in Klang and Petaling Jaya, followed by Shah Alam, Banting and Kuala Selangor. If compared to MAAQG, level of pollutants does not exceed the standard except for PM10 at certain month. This analysis can be used for scientist or planner to further studies and investigate about the relationship between air quality with the meteorological condition and transportation in order to increase the understanding of physical and chemical factor of air quality in Malaysia.