Browsing by Author "Munirah Abdul Zali"

Now showing 1 - 4 of 4
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    Comparison of rainwater quality before and during the MCO using chemometric analyses
    (Springer, 2023) Nadiana Arifn; Hafzan Juahir; Roslan Umar; Mokhairi Makhtar; Nur Hanis Mohamad Hanapi; Azimah Ismail; Munirah Abdul Zali
    This study aimed to classify the spatiotemporal analysis of rainwater quality before and during the Movement Control Order (MCO) implementation due to the COVID-19 pandemic. Chemometric analysis was carried out on rainwater samples collected from 24-gauge stations throughout Malaysia to determine the samples' chemical content, pH, and conductivity.
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    Consumption of water from ex-mining ponds in Klang Valley and Melaka, Malaysia: A health risk study
    (Elsevier, 2018) Isa Baba Koki; Kah Hin Low; Hafizan Juahir; Munirah Abdul Zali; Azman Azid; Sharifuddin Md Zain
    Evaluation of health risks due to heavy metals exposure via drinking water from ex-mining ponds in Klang Valley and Melaka has been conducted. Measurements of As, Cd, Pb, Mn, Fe, Na, Mg, Ca, and dissolved oxygen, pH, electrical conductivity, total dissolved solid, ammoniacal nitrogen, total suspended solid, biological oxygen demand were collected from 12 ex-mining ponds and 9 non-ex-mining lakes. Exploratory analysis identified As, Cd, and Pb as the most representative water quality parameters in the studied areas.
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    Hydrogeochemistry and groundwater quality assessment of the multilayered aquifer in Lower Kelantan Basin, Kelantan, Malaysia
    (Springer, 2018) Anuar Sefie; Ahmad Zaharin Aris; Mohammad Firuz Ramli; Tahoora Sheikhy Narany; Mohd Khairul Nizar Shamsuddin; Syaiful Bahren Saadudin; Munirah Abdul Zali
    Continual expansion of population density, urbanization, agriculture, and industry in most parts of the world has increased the generation of pollution, which contributes to the deterioration of surface water quality. This causes the dependence on groundwater sources for their daily needs to accumulate day by day, which raises concerns about their quality and hydrogeochemistry. This study was carried out to increase understanding of the geological setup and assess the groundwater hydrogeochemical characteristics of the multilayered aquifers in Lower Kelantan Basin.
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    Tracing sewage contamination based on sterols and stanols markers within the mainland aquatic ecosystem: a case study of Linggi catchment, Malaysia
    (Springer, 2021) Munirah Abdul Zali; Hafizan Juahir; Azimah Ismail; Ananthy Retnam; Azrul Normi Idris; Anuar Sefie; Ismail Tawnie; Syaiful Bahren Saadudin; Masni Mohd Ali
    Sewage contamination is a principal concern in water quality management as pathogens in sewage can cause diseases and lead to detrimental health effects in humans. This study examines the distribution of seven sterol compounds, namely coprostanol, epi-coprostanol, cholesterol, cholestanol, stigmasterol, campesterol, and β-sitosterol in filtered and particulate phases of sewage treatment plants (STPs), groundwater, and river water.