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155 results for “sediment”
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Research ArticleOpen accessEvery word in the titleHeavy Metals Analysis and Sediment Quality Values in Urban LakesAboud S. Jumbe, N. NandiniProblem statement: The objective of this research was to evaluate the degree of heavy metal contamination in lakes and the extent to which the sediment quality of the lakes of Bangalore city has deteriorated. Approach: In this study, heavy metals such as Cd, Co, Cu, Cr, Mn, Pb, Ni and Zn in lake bed sediments were analyzed using comparative sediment … …American Journal of Environmental Sciences, Vol. 5, Issue 6 · 31 Dec 2009 · 9,571 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTemporal Variability on Lowland River Sediment Properties and YieldMohd Khairul Amri Kamarudin, Mohd Ekhwan Toriman, A.S. Sharifah Mastura et al.Problem statement: A sediment analysis study was conducted at the Chini River on 16 and 31 August 2008. This study was conducted to review the formation of suspended sediment load in the Lake Chini catchment area, which flows into the Pahang River via the Chini River. Approach: Three sampling stations were chosen, the first one at upstream Chini River (S1), … …American Journal of Environmental Sciences, Vol. 5, Issue 5 · 31 Oct 2009 · 7,188 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleGeochemical Distribution of Trace Metals and Assessment of Anthropogenic Pollution in Sediments of Old Nakagawa River, Tokyo, JapanH.M. Zakir, Naotatsu Shikazono, Kazuo OtomoThe geochemical distributions of cadmium (Cd), copper (Cu), chromium (Cr), lead (Pb) and zinc (Zn) were examined in sediments collected from Old Nakagawa River (NR), Tokyo, Japan. A widely used 5-step sequential extraction procedure was employed for the fractionation of the metals and the concentrations were measured in the liquid extracts by inductively coupled plasma mass spectrometry (ICP-MS). The association … …American Journal of Environmental Sciences, Vol. 4, Issue 6 · 31 Dec 2008 · 7,453 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleGeochemistry of Sediment in the Major Estuarine Mangrove Forest of Terengganu Region, MalaysiaB.Y. Kamaruzzaman, M.C. Ong, M.S.Noor Azhar et al.Surface sediments collected from seven estuarine mangrove forests of Terengganu region (100 sampling points) were anaylzed for Pb, Cu and Zn using the sensitive Inductively Coupled Plasma Mass Spectrometer (ICP-MS). The average concentration of Pb, Cu and Zn were 10.5±7.12 µg g-1 dry weights, 31.1±16.5 µg g-1 dry weights and 20.8±13.3 µg g-1 dry weights, respectively. The statistical analysis of … …American Journal of Applied Sciences, Vol. 5, Issue 12 · 31 Dec 2008 · 7,321 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleRecent Sedimentation Rate and Sediment Ages Determination of Kemaman-Chukai Mangrove Forest, Terengganu, MalaysiaB.Y. Kamaruzzaman, M.C. OngTwo 20 cm sediment cores were collected with a D-section corer in the Kemaman-Chukai mangrove forest and analyzed for 210Pbex (excess 210Pb) in order to understand the sedimentation pattern. The activities of 210Pb along with the 208Po tracer were measured by Alpha Spectrometry on a silicon surface barrier detector connected to a multi channel analyzer. Sedimentation rates were determined applying … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 3 · 30 Sep 2008 · 9,303 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMicrotox Toxicity Assay for the Sediment Quality Assessment of Ganga RiverK.R. Beg, S. AliThe objective of this study was to determine the sediment quality assessment of Ganga River at Kanpur city where effluents from tannery industries are discharged. Sediment samples from control, upstream and downstream area were collected and analyzed for bacterial toxicity bioassay along with a reference sediment (LGC6137). The control samples collected from the point of origin of Ganga River at … …American Journal of Environmental Sciences, Vol. 4, Issue 4 · 31 Aug 2008 · 6,614 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleChemical Contaminants and Toxicity of Ganga River Sediment from Up and Down Stream Area at KanpurK. R. Beg, S. AliThe objective of this study was the sediment quality assessment of Ganga River at Kanpur city where effluents from tannery industries are discharged. Sediment samples from upstream and downstream area were collected and analyzed for trace metals and toxicity bioassay. Among various trace metals examined Cr in downstream sediment was 30-fold higher than in upstream sediment and its concentration was … …American Journal of Environmental Sciences, Vol. 4, Issue 4 · 31 Aug 2008 · 7,601 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleToxicity of Reference Sediment SamplesK. R. Beg, S. AliThis study was done to determine toxicity of certified reference sediment to be used for quality assurance in sediment toxicity testing program. Certified Reference Harbor Sediment (HS-4B for PAHs) and Estuarine Sediment (LGC-6137 for Trace Metals) were procured commercially from LGC Company, UK, and repeatedly analyzed against solid phase Microtox toxicity assay to determine EC50 values. Both PAHs rich and … …American Journal of Environmental Sciences, Vol. 4, Issue 4 · 31 Aug 2008 · 6,718 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAssessment of Suspended Sediments Concentration in Surface Waters, Using Modis ImagesMobasheri Mohammad RezaRemote sensing from air-borne and space-borne sensors have proved to be a useful method for Suspended Sediment Concentration (SSC) estimation as it provides an instantaneous and synoptic view of suspended sediments that would otherwise be unavailable. The reason for the success of remote sensing in such surveys is the strong positive relationship that exists between SSC and remotely sensed water … …American Journal of Applied Sciences, Vol. 5, Issue 7 · 31 Jul 2008 · 7,006 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEvaluation of Slope Assessment Systems for Predicting Landslides of Cut Slopes in Granitic and Meta-sediment FormationsSuhaimi Jamaludin, Bujang B.K. Huat, Husaini OmarIn Malaysia, slope assessment systems (SAS) are widely used in assessing the instability of slope or the probability of occurrence and the likely severity of landslides. These SAS can be derived based on either one particular approach or combination of several approaches of landslide assessments and prediction. This study overviews four slope assessment systems (SAS) developed in Malaysia for predicting … …American Journal of Environmental Sciences, Vol. 2, Issue 4 · 31 Dec 2006 · 6,909 accessesView PDFCite