Browsing by Author "A. Z. Aris"

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    Controlling factors of groundwater hydrochemistry in a small island's aquifer
    (Springer, 2007) A. Z. Aris; M. H. Abdullah; A. Ahmed; K. K. Woong
    Factor analysis was applied to the hydrochemical data set of Manukan Island in order to extract the principal factors corresponding to the different sources of variation in the hydrochemistry. The application of varimax rotation was to ensure the clear definition of the main sources of variation in the hydrochemistry. The geochemical data of dissolved major, minor and trace constituents in the groundwater samples indicates the main processes responsible for the geochemistry evolution. By using Kaiser normalization, principal factors were extracted from the data for each location.
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    Status, source identification, and health risks of potentially toxic element concentrations in road dust in a medium-sized city in a developing country
    (Springer, 2018) S. M. Praveena; A. Z. Aris
    This study aims to determine the status of potentially toxic element concentrations of road dust in a medium-sized city (Rawang, Malaysia). This study adopts source identification via enrichment factor, Pearson correlation analysis, and Fourier spectral analysis to identify sources of potentially toxic element concentrations in road dust in Rawang City, Malaysia. Health risk assessment was conducted to determine potential health risks (carcinogenic and non-carcinogenic risks) among adults and children via multiple pathways (i.e., ingestion, dermal contact, and inhalation).