Browsing by Author "Hazzeman Haris"
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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 Embargo Distribution of metals and quality of intertidal surface sediment near commercial ports and estuaries of urbanized rivers in Port Klang, Malaysia(Springer, 2015) Hazzeman Haris; Ahmad Zaharin ArisThirty intertidal surface sediment samples with replicates were collected from Port Klang and the concentration of metals, sediment particle size and amount of organic matter were determined.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 Restricted Mercury and methylmercury distribution in the intertidal surface sediment of a heavily anthrophogenically impacted saltwater-mangrove-sediment interplay zone(Elsevier, 2017) Hazzeman Haris; Ahmad Zaharin Aris; Mazlin bin MokhtarTotal mercury (THg) and methylmercury (MeHg) concentrations were determined from sediment samples collected from thirty sampling stations in Port Klang, Malaysia. Three stations had THg concentrations exceeding the threshold effect level of the Florida Department of Environmental Protection and the Canadian interim sediment quality guidelines.