Browsing by Author "Hanashriah Hassan"

Now showing 1 - 2 of 2
  • Thumbnail Image
    ItemEmbargo
    Interaction of PM10 concentrations with local and synoptic meteorological conditions at different temporal scales
    (Elsevier, 2020) Hanashriah Hassan; Mohd Talib Latif; Liew Juneng; Norhaniza Amil; Md Firoz Khan; Diong Jeong Yik; Nur Aleesha Abdullah
    Changing meteorological conditions over short and long time scales are anticipated to affect the concentrations of particulate matter with aerodynamic diameter below than 10 μm (PM10) in the atmosphere. This study aims to identify the temporal characteristics of PM10 including its relationship with local and synoptic meteorological conditions in Petaling Jaya (PJ), Malaysia from 1996 to 2016.A high volume sampler (HVS), mounted on the rooftop of MetMalaysia, was used to monitor daily PM10 concentrations. The meteorological parameter data were obtained from the MetMalaysia PJ station.
  • Thumbnail Image
    ItemEmbargo
    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.