Browsing by Author "Sarva Mangala Praveena"
Now showing 1 - 20 of 20
Results Per Page
Sort Options
Item Restricted A baseline study of tropical coastal water quality in Port Dickson, Strait of Malacca, Malaysia(Elsevier, 2013) Sarva Mangala Praveena; Ahmad Zaharin ArisTidal variation in tropical coastal water plays an important role on physicochemical characteristics and nutrients concentration. Baseline measurements were made for nutrients concentration and physicochemical properties of coastal water, Port Dickson, Malaysia.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 Characterization and risk analysis of metals associated with urban ust in Rawang (Malaysia)(Springer, 2018) Sarva Mangala PraveenaThis study was designed to determine the particle size distribution and develop road dust index combining source and transport factors involving road dust for dust pollution quantification in Rawang. Principal component analysis (PCA) was applied to identify possible sources of potentially toxic elements and spot major pollution areas in Rawang. The health risks (carcinogenic and noncarcinogenic) to adults and children were assessed using the hazard index and total lifetime cancer Risk, respectively. A total of 75 road dust samples were collected and particle sizes (1000, 500, 250, 160, 125 and 63 μm) were determined. Concentrations of potentially toxic elements (Cu, Cd, Co, Cr, Pb, Ni, Zn and As) in particle size of 63 μm were analyzed.Item Embargo Concentration of ions in selected bottled water samples sold in Malaysia(Springer, 2023) Ahmad Zaharin Aris; Ryan Chuan Yang Kam; Ai Phing Lim; Sarva Mangala PraveenaMany consumers around the world, including Malaysians, have turned to bottled water as their main source of drinking water. The aim of this study is to determine the physical and chemical properties of bottled water samples sold in Selangor, Malaysia.Item Embargo Contamination assessment and potential human health risks of heavy metals in Klang urban soils: a preliminary study(Springer, 2014) Sarva Mangala Praveena; Nurul Syazani Yuswir; Ahmad Zaharin Aris; Zailina HashimUrban areas with rapid industrial development have major impacts on environmental soil quality. This study was carried out to determine contamination assessment of heavy metal concentration of urban soil from Klang district (Malaysia). Health risk assessment was used to determine potential health risks (carcinogenic and non-carcinogenic risks) in both adults and children. Moreover, this study was also used to identify the most significant contaminant and exposure pathway with regard to Klang urban soil.Item Restricted Extenuation of saline solutes in shallow aquifer of a small tropical island: A case study of Manukan Island, North Borneo(Thai Society of Higher Education Institutes on Environment, 2010) Ahmad Zaharin Aris; Mohd Harun Abdullah; Sarva Mangala Praveena; Mohd Kamil Yusoff; Hafizan JuahirIntensive exploitation of groundwater from Manukan Island, s aquifer has disturbed the natural equilibrium between fresh and saline water and has resulted in the increase of groundwater salinity and the hydrochemical complexities of freshwater-seawater contact. It was observed that the mixing between freshwater-seawater has created diversity in the geochemical processes of Manukan Island, s aquifer and altered the freshwater and seawater mixture away from the theoretical composition line.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 Health risk assessment of heavy metal in urban surface soil (Klang District, Malaysia)(Springer, 2015) Nurul Syazani Yuswir; Sarva Mangala Praveena; Ahmad Zaharin Aris; Sharifah Norkhadijah Syed Ismail; Zailina HashimIn this study, a total of 76 urban surface soil samples were collected in the Klang district (Malaysia), and analyzed for total and bioavailable heavy metal concentrations by inductively coupled plasma-optical emission spectrometry.Item Embargo Heavy metal quantification of classroom dust in school environment and its impacts on children health from Rawang (Malaysia)(Springer, 2018) Sock Yin Tan; Sarva Mangala Praveena; Emilia Zainal Abidin; Manraj Singh CheemaThis study aimed to determine bioavailable heavy metal concentrations (As, Cd, Co, Cu, Cr, Ni, Pb, Zn) and their potential sources in classroom dust collected from children’s hand palms in Rawang (Malaysia). This study also aimed to determine the association between bioavailable heavy metal concentration in classroom dust and children’s respiratory symptoms. Health risk assessment (HRA) was applied to evaluate health risks (non-carcinogenic and carcinogenic) due to heavy metals in classroom dust.Item Embargo Heavy metals dynamics and source in intertidal mangrove sediment of Sabah, Borneo Island(Thai Society of Higher Eduation Institutes on Environment, 2010) Sarva Mangala Praveena; Ahmad Zaharin Aris; Miroslav RadojevicThere is increasing concern about the impact of anthropogenic activities in many tropical coastal areas such as in mangrove forest. Heavy metal cycling is a serious problem faced in mangrove environments due to the anthropogenic activities. This study was carried out to investigate the dynamics of heavy metals dynamics concentration.Item Restricted Indicators of microbial beach water quality: Preliminary findings from Teluk Kemang beach, Port Dickson (Malaysia)(Elsevier, 2013) Sarva Mangala Praveena; Kwan Soo Chen; Sharifah Norkhadijah Syed IsmailThis study aims to determine the concentrations of total coliforms and Escherichia coli (E. coli) in beach water, Teluk Kemang beach. This study was also aimed to determine relationship between total coliforms, E. coli and physicochemical parameters. A perceived health symptoms among beach visitors are rarely incorporated in beach water studies, this element was also assessed in this study.Item Embargo Land use change in highland area and its impact on river water quality: a review of case studies in Malaysia(Springer, 2018) Azlini Razali; Sharifah Norkhadijah Syed Ismail; Suriyani Awang; Sarva Mangala Praveena; Emilia Zainal AbidinThe continuous trend of river water quality deterioration in Cameron Highlands has raised the issues for discussion in this review article. The purpose of this review is to briefly summarize the land use change, agriculture practices, agro-tourism, and agriculture policy and management toward water quality of the river system network in Cameron Highlands specifically in the downtown where most of the development and agriculture activities are concentrated. A rigorous review has been done on the existing literature to determine the relationship between land use change and agriculture practices toward river water quality in Cameron Highlands from 2001 to 2017.Item Restricted Modeling of water balance components in a small island via a numerical model application(Coastal Education & Research Foundation, Inc., 2012) Sarva Mangala Praveena; Mohd Harun Abdullah; Kawi Biding; Ahmad Zaharin ArisThe results of this study provide a management foundation for restoration of the groundwater resources of Manukan Island. The management foundation can also be used with other small islands that have similar hydrogeological conditions for the purpose of groundwater resource protection.Item Embargo Occurance, human health risks and public awareness level of pharmaceuticals in tap water from Putrajaya (Malaysia)(Springer, 2020) Sarva Mangala Praveena; Maizatul Zahirah Mohd Rashid; Fauzan Adzima Mohd Nasir; Sze Yee Wee; Ahmad Zaharin ArisPharmaceutical residue pollution remains as an underexplored issue, especially in Asian countries. Along with that line, the purpose of this study was to investigate the occurrence of pharmaceutical residues in tap water and its associated potential health risks, involving a total of 80 Putrajaya residents. Besides, this study also aimed to evaluate public awareness (knowledge, attitude, and practice) levels with regards to pharmaceutical handling.Item Embargo Occurrence of selected estrogenic compounds and estrogenic activity in surface water and sediment of Langat River (Malaysia)(Springer, 2016) Sarva Mangala Praveena; Tang Seok Lui; Nur Aqilah Hamin; Siti Quistina Noorain Abdul Razak; Ahmad Zaharin ArisThe occurrence and estrogenic activities of steroid estrogens, such as the natural estrone (E1), 17β estradiol (E2), and estriol (E3), as well as the synthetic 17α-ethynylestradiol(EE2), were investigated in eight sampling points along the Langat River (Malaysia). Surface water samples were collected at 0.5 m and surface sediment 0-5 cm from the river surface. Instrument analysis of steroid estrogens was determined by UPLC-ESI-MS with an ultra-performance liquid chromatograph (Perkin Elmer FX15) coupled to a Q Trap function mass spectrophotometerItem Embargo Pharmaceuticals residues in selected tropical surface water bodies from Selangor (Malaysia): Occurrence and potential risk assessments(Elsevier, 2018) Sarva Mangala Praveena; Siti Norashikin Mohamad Shaifuddin; Syazwani Sukiman; Fauzan Adzima Mohd Nasir; Zanjabila Hanafi; Norizah Kamarudin; Tengku Hanidza Tengku Ismail; Ahmad Zaharin ArisThis study investigated the occurrence of nine pharmaceuticals (amoxicillin, caffeine, chloramphenicol, ciprofloxacin, dexamethasone, diclofenac, nitrofurazone, sulfamethoxazole, and triclosan) and to evaluate potential risks (human health and ecotoxicological) in Lui, Gombak and Selangor (Malaysia) rivers using commercial competitive Enzyme-Linked Immunosorbent Assay (ELISA) kit assays.Item Restricted Sustainable groundwater management on the small island of Manukan, Malaysia(Springer, 2012) Sarva Mangala Praveena; Mohd Harun Abdullah; Kawi Bidin; Ahmad Zaharin ArisNumerical models are capable of simulating various groundwater scenarios and relate it towards groundwater management. This paper focuses on numerical modeling and water balance approaches in the search for a sustainable management plan in Manukan Island. The impacts of pumping and recharge rates represented by groundwater scenarios were investigated by means of hydraulic heads, chloride concentrations and water balance components.Item Restricted The influence of seawater on the chemical composition of groundwater in a small island: The example of Manukan Island, East Malaysia(Coastal Education & Research Foundation, Inc., 2012) Ahmad Zaharin Aris; Sarva Mangala Praveena; Mohd Harun AbdullahManukan Island in Sabah, Malaysia, is characterized as a small, unique island where groundwater is a major source for domestic water and other water-related activities. Hydrochemical studies were carried out in the island with the objective of identifying the influence of seawater on the chemical composition of groundwater in Manukan Island via ionic ratios and saturation states.Item Restricted Understanding of groundwater salinity using statistical modeling in a small tropical island, East Malaysia(Springer, 2011) Sarva Mangala Praveena; Mohd Harun Abdullah; Kawi Bidin; Ahmad Zaharin ArisThis paper presents an understanding of groundwater salinity by identification of effective factors using chemometric methods (cluster analysis and multiple linear regressions) in Manukan Island, Sabah. Local groundwater and environmental properties were used to explore the effective factors of groundwater salinity.Item Embargo Waste audit and awareness level on recycling program: A case study in Universiti Malaysia Sabah (UMS), Malaysia(UMS, 2006) Kamsia Budin; Sarva Mangala Praveena; Amran Ahmed; Ahmad Zaharin Aris; Ho Chung MunA waste audit was carried out in Universiti Malaysia Sabah on-campus residential colleges (AB, CD and E) from 8 to 22 March 2006 involving 1323 students. The waste audit was conducted to identify the total waste disposed by students and to determine the percentage of waste that can be recycled based on six categories : organic waste, plastics, paper, aluminum, glass, and others.