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标题：PM₁₀ Composition of the Air Quality at the Bukit Nanas Forest Reserve of Kuala Lumpur, Malaysia
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作者：S. Norela ; M.S. Saidah ; A. Maimon 等
期刊名称：Research Journal of Environmental Sciences
印刷版ISSN：1819-3412
电子版ISSN：2152-8238
出版年度：2010
卷号：4
期号：4
页码：392-399
DOI：10.3923/rjes.2010.392.399
出版社：Academic Journals Inc., USA
摘要：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^-3recorded 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.