Browsing by Author "Nur Ili Hamizah Mustaffa"

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    Assessment on the distributions and exchange of anionic surfactants in the coastal environment of Peninsular Malaysia: A review
    (Springer, 2022) Royston Uning; Suhaimi Suratman; Mohd Talib Latif; Nur Ili Hamizah Mustaffa
    Terrestrial anionic surfactants (AS) enter the marine environment through coastal region. Despite that, in general limited knowledge is available on the coastal AS transfer pathway. This paper aims to assess the distributions and exchange of AS in the Peninsular Malaysia coastal environments, adjacent to the southern waters of South China Sea and Strait of Malacca.
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    Concentration and source apportionment of volatile organic compounds (VOCs) in the ambient air of Kuala Lumpur, Malaysia
    (Springer, 2017) Puteri Nurafidah Hosaini; Md Firoz Khan; Nur Ili Hamizah Mustaffa; Norhaniza Amil; Noorlin Mohamad; Shoffian Amin Jaafar; Mohd Shahrul Mohd Nadzir; Mohd Talib Latif
    The accumulation of volatile organic compounds (VOCs) in ambient air affects air quality through the generation of surface level ozone and secondary organic aerosol. A study of the distribution and source apportionment of VOCs was conducted at two stations to investigate the air quality status of Kuala Lumpur. Samples of ambient air were collected into Tedlar sampling bags using an air sampling pump and then pre-concentrated with solid-phase micro-extraction fibre. Gas chromatography-mass spectrometry (GC-MS) was employed to measure the VOC species.
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    Source contribution of PM2.5 at different locations on the Malaysian Peninsula
    (Springer, 2015) Ooi Ee-Ling; Nur Ili Hamizah Mustaffa; Norhaniza Amil; Md Firoz Khan; Mohd Talib Latif
    This study determined the source contribution of PM2.5 (particulate matter <2.5 μm) in air at three locations on the Malaysian Peninsula. PM2.5 samples were collected using a high volume sampler equipped with quartz filters. Ion chromatography was used to determine the ionic composition of the samples and inductively coupled plasma mass spectrometry was used to determine the concentrations of heavy metals. Principal component analysis with multilinear regressions were used to identify the possible sources of PM2.5.
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    Volatile organic compounds and their contribution to ground-level ozone formation in a tropical urban environment
    (Elsevier, 2022) Mohd Faizul Hilmi Zulkifli; Nor Syamimi Sufiera Limi Hawari; Mohd Talib Latif; Haris Hafizal Abd Hamid; Anis Asma Ahmad Mohtar; Wan Mohd Razi Wan Idris; Nur Ili Hamizah Mustaffa; Liew Juneng
    This study aims to determine the trends of volatile organic compound (VOC) concentrations and their potential contribution to O3 formation. The hourly data (August 2017 to July 2018) for 29 VOCs were obtained from three Malaysian Department of Environment continuous air quality monitoring stations with different urban backgrounds (Shah Alam, Cheras, Seremban). The Ozone Formation Potential (OFP) was calculated based on the individual Maximum Incremental Reactivity (MIR) and VOC concentrations.