Browsing by Author "Siti Zawiyah Azmi"

Now showing 1 - 2 of 2
  • Thumbnail Image
    ItemEmbargo
    The impact of urban growth on regional air quality surrounding the Langat River Basin, Malaysia
    (Springer, 2011) Mohd Talib Latif; Siti Zawiyah Azmi; Ahmad Daud Mohamed Noor; Aida Shafawati Ismail; Zaharizam Johny; Shaharudin Idrus; Ahmad Fariz Mohamed; Mazlin Bin Mokhtar
    Studies of air quality were carried out in the towns of Kajang, Nilai and Banting in the Langat River Basin, southern region of Kuala Lumpur to determine the status and trend of air quality. The determination of air quality was based on several parameters such as suspended solids with diameters less than 10 lm (PM10) and gaseous pollutants of sulphur dioxide (SO2), nitrogen dioxide (NO2), ozone (O3), and carbon monoxide (CO). Primary concentration data of air pollutants were compiled through fieldwork studies and combined with secondary data obtained from the regular monitoring data as collected by Alam Sekitar Malaysia Sdn. Bhd. (ASMA) on behalf of Malaysian Department of Environment (DOE) at their stations in Kajang and Nilai.
  • Thumbnail Image
    ItemEmbargo
    Trend and status of air quality at three different monitoring stations in the Klang Valley, Malaysia
    (Springer, 2010) Siti Zawiyah Azmi; Mohd Talib Latif; Aida Shafawati Ismail; Liew Juneng; Abdul Aziz Jemain
    Over the last decades, the development of the Klang Valley (Malaysia), as an urban commercial and industrial area, has elevated the risk of atmospheric pollutions. There are several significant sources of air pollutants which vary depending on the background of the location they originate from. The aim of this study is to determine the trend and status of air quality and their correlation with the meteorological factors at different air quality monitoring stations in the Klang Valley. The data of five major air pollutants (PM10, CO, SO2, O3, NO2) were recorded at the Alam Sekitar Sdn Bhd (ASMA) monitoring stations in the Klang Valley, namely Petaling Jaya (S1), Shah Alam (S2) and Gombak (S3). The data from these three stations were compared with the data recorded at Jerantut, Pahang (B), a background station established by the Malaysian Department of Environment.