Browsing by Author "Fatimah Md. Yusoff"
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Item Embargo Active pharmaceutical ingredients in Malaysian drinking water: consumption, exposure, and human health risk(Springer, 2020) Sze Yee Wee; Didi Erwandi Mohamad Haron; Ahmad Zaharin Aris; Fatimah Md. Yusoff; Sarva Mangala PraveenaActive pharmaceutical ingredients (APIs) are typical endocrine disruptors found in common pharmaceuticals and personal care products, which are frequently detected in aquatic environments, especially surface water treated for drinking. However, current treatment technologies are inefficient for removing emerging endocrine disruptors, leading to the potential contamination of tap water. This study employed an optimized analytical method comprising solid-phase extraction and liquid chromatography–tandem mass spectrometry (SPE–LC–MS/MS) to detect APIs in tap water in Putrajaya, Malaysia.Item Embargo Application of enrichment factor, geoaccumulation index, and ecological risk index in assessing the elemental pollution status of surface sediments(Springer, 2019) Ley Juen Looi; Ahmad Zaharin Aris; Fatimah Md. Yusoff; Noorain Mohd Isa; Hazzeman HarisSediment can accumulate trace elements in the environment. This study profiled the magnitude of As, Ba, Cd, Co, Cu, Cr, Ni, Pb, Se, and Zn pollution in surface sediments of the west coast of Peninsular Malaysia. Trace elements were digested using aqua regia and were analyzed using the inductively coupled plasma-mass spectrometry. The extent of elemental pollution was evaluated using with the enrichment factor (EF) and geoaccumulation index (Igeo).Item Restricted Baseline metals pollution profile of tropical estuaries and coastal waters of the Straits of Malacca(Elsevier, 2013) Ley Juen Looi; Ahmad Zaharin Aris; Wan Lutfi Wan Johari; Fatimah Md. Yusoff; Zailina HashimThe status report on metal pollution in tropical estuaries and coastal waters is important to understand potential environmental health hazards. Detailed baseline measurements were made on physicochemical parameters (pH, temperature, redox potential, electrical conductivity, salinity, dissolved oxygen, total dissolved solid), major ions and metals concentrations at estuaries and coastal waters along the Straits of Malacca.Item Embargo Geo-accumulation index and contamination factors of heavy metals (Zn and Pb) in urban river sediment(Springer, 2017) Hazzeman Haris; Ley Juen Looi; Ahmad Zaharin Aris; Nor Farhanna Mokhtar; Nur Ain Ayunie Ayob; Fatimah Md. Yusoff; Abu Bakar Salleh; Sarva Mangala PraveenaThe aim of the present study was to appraise the levels of heavy metal contamination (Zn and Pb) in sediment of the Langat River (Selangor, Malaysia). Samples were collected randomly from 15 sampling stations located along the Langat River. The parameters measured were pH, redox potential, salinity, electrical conductivity, loss of ignition, cation exchanges capacity (Na, Mg, Ca, K), and metal ions (Zn and Pb).Item Embargo Mercury contamination in the estuaries and coastal sediments of the Strait of Malacca(Springer, 2015) Ley Juen Looi; Ahmad Zaharin Aris; Fatimah Md. Yusoff; Zailina HashimSediment is a great indicator for assessing coastal mercury contamination. This work profiled the magnitude of mercury pollution in the tropical estuaries and coastal sediments of the Strait of Malacca. Mercury was extracted through the ultrasound-assisted mercury extraction method and analyzed using the flow injection mercury system.Item Embargo Occurrence, distribution, and sources of emerging organic contaminants in tropical coastal sediments of anthropogenically impacted Klang River estuary, Malaysia(Elsevier, 2018) Tuan Fauzan Tuan Omar; Ahmad Zaharin Arisa; Fatimah Md. Yusoff; Shuhaimi MustafaThis baseline assessment reports on the occurrence, distribution, and sources of emerging organic contaminants (EOCs) in tropical coastal sediments of anthropogenically impacted Klang River estuary, Malaysia.