Pollution
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Item Restricted An analysis of land use/land cover changes using remote sensing data and its impacts towards sediment loading in Padas River sub-catchment(UMS, 2013) Ahmad Norazhar Mohd Yatim; Dazvieo Keniin; Farrah Anis Fazliatul Adnan; Carolyn Melissa PayusThe objective of this study was to investigate the land use and land cover (LULC) changes and its impacts towards the soil stability on the sediment loading. Two satellite images Landsat 5 for year 1991 and Spot 5 for year 2010 were classified using remote sensing and Geographic Information System (GIS) which describe the land cover and land use change (LULC) within 20 years of time for the river sub-catchment.Item Open Access An assessment of selected trace elements in intertidal surface sediments collected from the Peninsular Malaysia(Springer, 2010) Syaizwan Zahmir Zulkifli; Ferdaus Mohamat-Yusuff; Takaomi Arai; Ahmad Ismail; Nobuyuki MiyazakiConcentrations of 11 trace elements (V, Cr, Co, Ni, Cu, Zn, As, Ag, Cd, Pb, and U) were determined in the intertidal surface sediments of Peninsular Malaysia.Item Open Access An investigation of arsenic contamination in Peninsular Malaysia based on Centella asiatica and soil samples(Springer, 2013) G. H. Ong; C. K. Yap; M. Maziah; H. Suhaimi; S. G. TanThe first objective of this study was to provide data of arsenic (As) levels in Peninsular Malaysia based on soil samples and accumulation of As in Centella asiatica collected from 12 sampling sites in Peninsular Malaysia. The second objective was to assess the accumulation of As in transplanted C. asiatica between control and semi-polluted or polluted sites. Four sites were selected which were UPM (clean site), Balakong (semi-polluted site), Seri Kembangan (semi-polluted site) and Juru (polluted site).Item Restricted Analyses and pollution potential of heavy metals at the Jerangau-Jabor landfill in Kuantan, Malaysia(University of Tehran, 2020) How F. N. F.; Mohd Noh, N.S.; Nordin, N. A.; Abang Sapani, D. F. NThe impact of Industrialization has always been related to the better economic and social transformation. However, it should be well planned for environmental sustainability. Landfilling is the most used municipal solid waste (MSW) disposal method in Malaysia. Raw and treated leachate collected from Jerangau-Jabor Landfill Site (JJLS), Kuantan, Pahang were analysed for the content of silver, cadmium, chromium, copper, iron, lead, zinc using Flame Atomic Absorption Spectrometry (FAAS) and Inductively Coupled Plasma Mass Spectrometry (ICP-MS). The metal analyses result were compared with standard limits from the Environmental Quality (Control of Pollution from Solid Waste Transfer Station and Landfill) Regulations 2009, Malaysian Environmental Quality Act 1974 (Act 127) set by the Department of Environment, Ministry of Natural Resources and Environment, Malaysia and used to calculate the sub-leachate pollution index of heavy metals (sub-LPIhm) to evaluate the pollution potential of the heavy metals.Item Open Access Analysis of heavy metal concentrations in sediments of selected estuaries of Malaysia - a statistical assessment(Springer, 2009) Abbas F. M.; Alkarkhi; Norli Ismail; Aness Ahmed; Azhar mat EasaStatistical analysis of heavy metal concentrations in sediment was studied to understand the interrelationship between different parameters and also to identify probable source component in order to explain the pollution status of selected estuaries. Concentrations of heavy metals (Cu, Zn, Cd, Fe, Pb, Cr, Hg and Mn) were analyzed in sediments from Juru and Jejawi Estuaries in Malaysia with ten sampling points of each estuary.Item Restricted Anthropogenic concentrations of Cd, Ni and Zn in the intertidal, river and drainage sediments collected from north Western Peninsular Malaysia(Universiti Pertanian Malaysia Press, 2011) Yap, C. K.; Pang, B. H.Surface sediments were collected from the north western intertidal area (14 sites), drainage (3 sites), and rivers (3 sites) of Peninsular Malaysia in April 2005. The samples were analyzed for their concentrations of Cd, Ni, and Zn.Item Restricted 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 Assessment Cu, Ni and Zn pollution in the surface sediments in the Southern Peninsular Malaysia using cluster analysis, ratios of geochemical nonresistant to resistant fractions, and geochemical indices(Thai Society of Higher Eduation Institutes on Environment, 2011) Yap. C. K.; Wong, C. H.The intertidal sediment samples collected in May 2007 from 12 sampling sites in the southern part of Peninsular Malaysia, were determined for the total concentrations of Cu, Ni and Zn and their four geochemical fractions.Item Open Access Assessment of Cu, Pb, and Zn contamination in sediment of north western Peninsular Malaysia by using sediment quality values and different geochemical indices(Springer, 2011) C. K. Yap; B. H. PangSurface sediments were collected from the north western aquatic area (13 intertidal sites and 5 river drainages) of Peninsular Malaysia, which were suspected to have received different anthropogenic sources. These sites included town areas, ports, fishing village, industrial areas, highway sides, jetties and some relatively unpolluted sites.Item Open Access Assessment of heavy metal contamination at west and east coastal area of Peninsular Malaysia(Faculty of Science, Universiti Malaya, 2014) Ghufran Redzwan; Hafizah Abdul Halim; Siti Aisah Alias; M. Motior RahmanFive heavy metal elements [Pb (II), Cr (VI), Ni (II), Zn (II) and Cu (II)] in the sediment of the two coastal areas had been analyzed of the Mideast and Midwest of Peninsular Malaysia in the year of 2012. This is to assess and monitor contamination of heavy metal at a mangrove area in the state of Negeri Sembilan, Melaka and Pahang. Overall and individual analyses of the heavy metals showed the concentration of the named heavy metals were not at alarming stage. All analyzed elements were found to be much lower than the international guideline provided by the Chinese (EPA-China), Canadian (CEPA) and American (US-EPA). Quantitative assessment using Enrichment Factor shows that all analyses elements were to found be within the degree of background concentration.Item Open Access Assessment of Heavy Metal Contamination in Paddy Field Soils: A Case Study in Ranau Valley, Sabah, Malaysia(E3S Web of Ccnference, 2025-01-10) Siti Norliyana; Nadrah Ahmad DamanhuriThe weathering of ultrabasic rocks surrounding the Ranau Valley in Sabah, Malaysia, contributes to the formation of soils with elevated concentrations of heavy metals. These metals, including Manganese (Mn), Nickel (Ni), Chromium (Cr), and others, have the potential to disperse into nearby paddy fields, leading to significant soil contamination. This study aims to: (a) determine the concentrations of heavy metals in the paddy field soils of Ranau Valley and (b) map their spatial distribution using Geographic Information System (GIS) technology. The results revealed that Mn was the most abundant metal, with concentrations reaching 13,855.67 mg/kg, followed by Iron (Fe), Ni, Zinc (Zn), and Cr. Several metals, including Mn, Ni, and Cr, exceeded established soil toxicity thresholds, particularly in areas influenced by ultrabasic rocks and agricultural practices. Elevated levels of Copper (Cu), Lead (Pb), Zn, and Cadmium (Cd) were also observed in regions affected by the use of chemical fertilizers. These findings highlight the potential risks to agricultural productivity and food safety in the region, as metals such as cadmium and lead can accumulate in crops, posing health risks to local populations. To address these concerns, remediation strategies such as organic amendments and pH adjustments are recommended. Regular monitoring and sustainable soil management practices will be essential to safeguard soil health, ensure food security, and reduce environmental risks in the Ranau Valley.Item Restricted Assessment of heavy metal pollution in surface sediments of the Bayan Lepas area, Penang, Malaysia(Elsevier, 2017) Sharareh Khodami; Misni Surif; Wan Maznah W.O.; Reza DaryanabardThis study aimed to evaluate the spatial and temporal distribution of heavy metals (Cd, Cr, Cu, Co, Fe, Pb, Ni, V, and Zn) in the sediments of Bayan Lepas Free Industrial Zone of Penang, Malaysia. Ten sampling stations were selected and sediment samples were collected during low tide (2012 ? 2013). Metals were analyzed and the spatial distribution of metals were evaluated based on GIS mapping.Item Restricted Assessment of heavy metal pollution in surficial sediments from a tropical river-estuary-shelf system: A case study of Kelantan River, Malaysia(Elsevier, 2017) Ai-jun Wang; Chui Wei Bong,Yong-hang Xu; Meor Hakif Amir Hassan; Xiang Ye; Ahmad Farid Abu Bakar; Yun-hai Li; Zhi-kun Lai; Jiang Xu; Kar Hoe LohTo understand the source-to-sink of pollutants in the Kelantan River estuary and the adjacent shelf area in Malaysia, a total of 42 surface sediment samples were collected in the Kelantan River-estuary-shelf system to analyze for grain size, total organic carbon (TOC) content, Al and heavy metals (Cr, Ni, Cu, Zn, Cd and Pb).Item Open Access Assessment of heavy metals contamination in Mamut river sediments using sediment quality guidelines and geochemical indices(Springer, 2015) Bibi Noorarlijannah Mohammad Ali; Chin Yik Lin; Fera Cleophas; Mohd Harun Abdullah; Baba MustaThis paper describes the concentration of selected heavy metals (Co, Cu, Ni, Pb, and Zn) in the Mamut river sediments and evaluate the degree of contamination of the river polluted by a disused copper mine.Item Restricted Assessment of metals contamination in Klang River surface sediments by using different indexes(Thai Society of Higher Eduation Institutes on Environment, 2011) Abolfazl Naji; Ahmad IsmailSurface sediments (0-5 cm) from 21 stations throughout Klang River were sampled for metal concentration as well sediment's pH, total organic carbon (TOC) and particles sizes to obtain an overall classification of metal contaminations in the areaItem Open Access Assessment of multiresidue pesticides in agricultural soils from Ledang, Malaysia and related potential health risks(Technoscience Publications, 2018) Khitam Jaber Nabhan; Wan Mohd Afiq Wan Mohd Khalik; Md Pauzi Abdullah; Mohamed Rozali Othman; Anizan Isahak; Siti Aminah ZulkepliThe concentration levels of organochlorine and organophosphorus pesticide residues in agriculture soils from paddy field were successfully investigated. Residues were isolated using the Soxhlet extraction method, following a clean-up process (SPE Florosil) and a final determination of targeted compounds performed by using a gas chromatography electron capture detector.Item Restricted Assessment of toxicity level in selected heavy meetal in volcanic soils from Tawau, Sabah(UMS, 2015) Mohamed Ali Yusof Mohd Husin; Hennie Fitria W. Soehady Erfen; Baba MustaThe objective of this paper is to study the concentration and toxicity level of selected heavy metals in volcanic soils around Tawau, Sabah. In this study 10 soil samples were collected from different sampling stations. The selection of soil samples were based on the different type of volcanic rocks in the study area. The determination of concentration of heavy metals in soil samples were carried out using X-Ray Fluorescence (XRF) analysis.Item Open Access Awareness and Practices on Municipal Solid Waste Management among Students at University Malaysia Kelantan Jeli Campus(IOP Publishing, 2022) S A Nawawi; I Muniandy; N M Fauzi; A N M Nor; N Ibrahim; R M Jamil; H A Aziz; R Nawawi; S H Ya'acob; W N F W M NazarieThis study was conducted to determine the level of practices and awareness of municipal solid waste management (MSWM) among students in UMK Campus Jeli. Besides, the association between the practices and awareness of municipal solid waste management among students in Universiti Malaysia Kelantan (UMK) Jeli Campus were measured. This study utilised a questionnaire concerning the students' awareness and practices of MSW.Item Restricted Baseline distributions and sources of Polycyclic Aromatic Hydrocarbons (PAHs) in the surface sediments from the Prai and Malacca Rivers, Peninsular Malaysia(Elsevier, 2014) Mehrzad Keshavarzifard; Mohamad Pauzi Zakaria; Tan Shau Hwai; Ferdius@Ferdius Mohamat Yusuff; Shuhaimi Mustafa; Vahab Vaezzadeh; Sami M. Magam; Najat Masood; Sadeq A.A. Alkhadher; Fatemeh Abootalebi-JahromiIn this study, the surface sediments of the Malacca and Prai Rivers were analyzed to identify the distributions, and sources of Polycyclic Aromatic Hydrocarbons (PAHs).Item Open Access Bioremediation of petroleum contaminated beach sediments: Use of crude palm oil and fatty acids to enhance indigenous biodegradation(Kluwer Academic Publishers, 2004) J. P. Obbard; K. L. Ng; R. XuAmendment of simple organic carbon, in the presence of inorganic nutrients, to oil contaminated beach sediments can potentially stimulate the biodegradation of hydrocarbons by the indigenous microbial biomass. The ability of crude palm oil (CPO) and fatty acids, in the presence of soluble inorganic nutrients (C:N:P = 100:10:1), to stimulate biodegradation in sediments amended with Arabian light crude oil was investigated in laboratory microcosms over a 30-day period.