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Articles by M.S. Saidah
Total Records ( 1 ) for M.S. Saidah
  S. Norela , M.S. Saidah , A. Maimon and B.S. Ismail
  This study was conducted to determine the concentrations of PM10 and air composition in the vicinity of the Bukit Nanas Forest Reserve within the city of Kuala Lumpur. Sampling of PM10 was conducted using a High Volume Sampler (HVS) with a flow rate of 1.13 m3 air min-1 for a total period of 24 h. The composition of PM10 analyzed constituted anions (SO42¯, NO3¯, Cl¯), cations (K+, Na+, Mg2+, Ca2+, NH4+) and heavy metals (Pb, Zn, Cd, Ni, Mg, Cu, Fe and Mn). The concentrations of SO42¯, NO3¯ and NH4+ ions were determined using the HACH spectrophotometer, whilst Cl¯ ions were measured using the argentometric method. The total mean concentration of PM10 for the three sampling stations was 13.44±7.12 μg m-3 (station 1), 17.91±4.56 μg m-3 (station 2) and 20.23±4.34 μg m-3 (station 3), compared to 4.27±1.67 μg m-3 recorded at the non-urban Bangi Forest Reserve. The highest mean concentration of anions and cations for the three stations was for SO42¯ ions, followed by Cl¯, NO3¯, Na+, K+, Mg2+, NH4+ and Ca2+. For heavy metals, Fe recorded the highest value, followed by Ni, Zn, Cu, Pb, Mg, Mn and Cd. Air quality within the vicinity of the study area for the sub-index of PM10 was found to be good, with the highest API value recorded during the study period being 14 at station 3.
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