Browsing by Author "Anas Ahmad Jamhari"

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    Concentration and source identification of polycyclic aromatic hydrocarbons (PAHs) in PM10 of urban, industrial and semi-urban areas in Malaysia
    (Elsevier, 2014) Anas Ahmad Jamhari; Mazrura Sahani; Mohd Talib Latif; Kok Meng Chan; Hock Seng Tan; Md Firoz Khan; Norhayati Mohd Tahir
    Particulate matter (PM10) associated with polycyclic aromatic hydrocarbons (PAHs) in ambient air were determined at two sites within the Klang Valley, Kuala Lumpur (urban, KL) and Petaling Jaya (industrial, PJ), and one site outside the Klang Valley, Bangi (semi-urban, BG). This study aimed to determine the concentration and distribution of PAHs in PM10 and the source of origin through principal component analysis (PCA) and diagnostic ratio analysis.
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    Seasonal variation and size distribution of inorganic and carbonaceous components, source identification of size-fractioned urban air particles in Kuala Lumpur, Malaysia
    (Elsevier, 2022) Anas Ahmad Jamhari; Mohd Talib Latif; Muhammad Ikram A. Wahab; Hanashriah Hassan; Murnira Othman; Haris Hafizal Abd Hamid; Perapong Tekasakul; Worradorn Phairuang; Mitsuhiko Hata; Masami Furuchi; Nor Fadilah Rajab
    This study aims to determine the inorganic and carbonaceous components depending on the seasonal variation and size distribution of urban air particles in Kuala Lumpur. Different fractions of particulate matter (PM) were measured using a Nanosampler from 17 February 2017 until 27 November 2017. The water-soluble inorganic ions (WSIIs) and carbonaceous components in all samples were analysed using ion chromatography and carbon analyser thermal/optical reflectance, respectively.
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    Spatial distribution of fine and coarse particulate matter during a southwest monsoon in Peninsular Malaysia
    (Elsevier, 2021) Munira Othman; Mohd Talib Latif; Anas Ahmad Jamhari; Haris Hafizal Abd Hamid; Royston Uning; Md Firoz Khan; Mohd Shahrul Mohd Nadzir; Mazrura Sahani; Muhammad Ikram Abdul Wahab; Kok Meng Chan
    This study aimed to determine the spatial distribution of PM2.5 and PM10 collected in four regions (North, Central, South and East Coast) of Peninsular Malaysia during the southwest monsoon. Concurrent measurements of PM2.5 and PM10 were performed using a high volume sampler (HVS) for 24 h (August to September 2018) collecting a total of 104 samples. All samples were then analysed for water soluble inorganic ions (WSII) using ion chromatography, trace metals using inductively coupled plasma-mass spectroscopy (ICP-MS) and polycyclic aromatic hydrocarbon (PAHs) using gas chromatography-mass spectroscopy (GC-MS).