Browsing by Author "Sofia Anita"

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    Characterization, distribution, sources and origins of aliphatic hydrocarbons from surface sediment of Prai Strait, Penang, Malaysia: A widespread anthropogenic input
    (Thai Society of Higher Eduation Institutes on Environment, 2008) Mahyar Sakari; Mohamad Pauzi Zakaria; Nordin Hj Lajis; Che Abd Rahim Mohamed; Pourya Shahpoury Bahry; Sofia Anita; Kuhan Chandrug
    Persistent organic pollutants such as petroleum hydrocarbons are one of the most serious and important class of pollutants that face to many countries including Malaysia. Aliphatic hydrocarbons contain straight chain alkane; derive from anthropogenic and natural sources to the marine environment. The multi-purpose strait of Prai is located in the Northwest of Peninsular Malaysia plays an important economic role in the Southeast Asia. Twenty surface sediment samples were collected using Eckman dredge to measure the concentration and determine the characterization, sources and origins of the aliphatic hydrocarbons in December 2006. Samples (top 4 cm) were extracted with Soxhlet, treated with activated copper and subjected to 2 steps column chromatography for purification and fractionation. Alkane fraction injected into Gas Chromatography-Flame Ionization Detector (GC-FID) for instrumental analysis.
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    The history of petroleum pollution in Malaysia; urgent need for integrated prevention approach
    (Thai Society of Higher Education Institutes on Environment, 2010) Mahyar Sakari; Mohamad Pauzi Zakaria; Che Abd Rahim Mohamed; Nordin Haji Lajis; Kuhan Chandru; Pourya Shahpoury Bahry; Mohammadreza Mohammad Shafiee; Sofia Anita
    Petroleum pollution is known as point and non-point source of contaminations in the environment. A major class of petroleum contaminant is groups of compounds consist of two or more fused benzene rings called polycyclic aromatic hydrocarbons (PAHs) that are carcinogenic, mutagenic and toxic. Source identification of petroleum pollution is necessary to prevent pollution entry into the environment. Eight sedimentary cores were obtained from developed and developing areas around Peninsular Malaysia to investigate the historical profile of PAHs, their characteristics and its possible origins.