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153 articles for “Sediment”
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Research ArticleOpen accessIn the abstractRiver Flow Conditions and Dynamic State Analysis of Pahang RiverMuhamad Barzani Gasim, M. E. Toriman, Mushrifah Idris et al.Pahang River (Sg. Pahang) is the longest river in Peninsular Malaysia. Flood is a common event in Pahang River Basin during wet season which triggered by monsoon season. The hydrodynamic study of Pahang River should be well understood especially when it is a target of northeast monsoon which influenced the Pahang River Basin every year (from November to March). 17 … …American Journal of Applied Sciences, Vol. 10, Issue 1 · 10 Jan 2013 · 8,709 accessesView PDFCite
Research ArticleOpen accessIn the abstractASSESSMENT OF SURFACE WATER QUALITY IN AN ARSENIC CONTAMINATED VILLAGEKumud C. Saikia, Susmita GuptaArsenic contamination of ground water has occurred in various parts of the world, becoming a menace in the Ganga-Meghna-Brahmaputra basin (West Bengal and Assam in India and Bangladesh). Recently arsenic has been detected in Cachar and Karimganj districts of barak valley, Assam, bordering Bangladesh. In this area coli form contamination comprises the major constraint towards utilization of its otherwise ample … …American Journal of Environmental Sciences, Vol. 8, Issue 5 · 31 Aug 2012 · 7,518 accessesView PDFCite
Research ArticleOpen accessIn the abstractTotal Petroleum Hydrocarbons By Gas Chromatography in Colombian Waters and SoilsC.. González, S. Roa, A. Suspes et al.Total Petroleum Hydrocarbons (TPHs) were required by the Colombian Environmental Authorities. However, the great diversity of hydrocarbon sources, in addition to the variety of available techniques and analytical methods had created confusion among the users of the data in regards to the appropriate methodologies. This study presents the results obtained in the method validation for the determination of TPHs in … …American Journal of Environmental Sciences, Vol. 8, Issue 4 · 20 Jun 2012 · 9,218 accessesView PDFCite
Research ArticleOpen accessIn the abstractLocalization of the Dissimilatory Arsenate Reductase in Sulfurospirillum Barnesii Strain SeS-3Eman AfkarProblem statement: Sulfurospirillim barnesii strain SeS-3 is one of the recently known bacterial isolates that can obtain energy to support growth by respiring the toxic oxyanions of arsenic and selenium under anaerobic conditions. Approach: The ultimate goal of this investigation is to localize the active sites for the reduction of arsenate arsenite as well as selenate selenite in S. barnesii … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 1 · 5 Mar 2012 · 7,910 accessesView PDFCite
Research ArticleOpen accessIn the abstractGroundwater Dynamics and Quality Assessment in an Agricultural AreaStefano Lo Russo, Adriano Fiorucci, Bartolomeo VignaProblem statement: The analysis of the relationships among the different hydrogeological Units and the assessment of groundwater quality are fundamental to adopt suitable territorial planning measures aimed to reduce the potential groundwater pollution especially in agricultural regions. In this study, the characteristics of groundwater dynamics and the assessment of its quality in the Cuneo Plain (NW Italy) were examined. Approach: … …American Journal of Environmental Sciences, Vol. 7, Issue 4 · 29 Sep 2011 · 7,373 accessesView PDFCite
Research ArticleOpen accessIn the abstractSafety and Efficacy of an Ayurvedic Formulation Cystone in Management of Ureteric Calculi: A Prospective Randomized Placebo Controlled StudyN.K. Mohanty, R.L. Nayak, Pralhad S. PatkiProblem statement: Medical management of urolithiasis is still a challenge for modern medical practice. In the present study, Cystone tablet, an Ayurvedic formulation claimed to be useful in urolithiasis was evaluated for its safety and efficacy in reduction or expulsion of ureteric calculi and to assess the role of Cystone in relieving the clinical symptoms. Approach: This was a prospective … …American Journal of Pharmacology and Toxicology, Vol. 5, Issue 2 · 30 Jun 2010 · 12,374 accessesView PDFCite
Research ArticleOpen accessIn the abstractRocks with Asbestos: Risk Evaluation by Means of an Abrasion TestBellopede Rossana, Clerici Carlo, Marini Paola, Zanetti GiovannaNaturally occurring asbestos and asbestiform minerals can be found in metamorphic rocks and in the soil of the alluvial plains. Problem statement: The definition of the "free-asbestos rock" and the limit to consider a rock or a soil safe is still a controversial issue. American and European laws did not present any method to define the hazard of the green … …American Journal of Environmental Sciences, Vol. 5, Issue 4 · 31 Oct 2009 · 7,672 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Groundwater Resources of the Morainic Amphitheatre: A Case Study in PiedmontMassimo Vincenzo Civita, Marina De Maio, Adriano FiorucciProblem statement: The risk of groundwater pollution and preservation of groundwater quality of these resources are extremely important topics, particularly at the present time in which water is becoming a limitative factor for land development. In this context the main objective of this study was the evaluation of the pollution vulnerability of groundwater in the Ivrea Morainic Amphitheatre (IMA), situated … …American Journal of Environmental Sciences, Vol. 5, Issue 4 · 31 Aug 2009 · 7,199 accessesView PDFCite
Research ArticleOpen accessIn the abstractPhenanthrene Contaminated Soil Biotreatment Using Slurry Phase BioreactorM. Arbabi, M. Sadeghi, Ch. AnyakoraProblem Statement: Polycyclic Aromatic Hydrocarbons (PAHs) are suspected toxins that accumulate in soils and sediments due to their insolubility in water and lack of volatility. Slurry-phase biological treatment is one of the innovative technologies that involve the controlled treatment of excavated soil in a bioreactor. Due to highly soil contamination from petroleum compounds in crude oil extraction and also oil … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 6,762 accessesView PDFCite
Research ArticleOpen accessIn the abstractMineralogy and Chemistry of Coronadite from Middle Cambrian Manganese Deposits at Wadi Dana, Southern JordanAhmad Al-Malabeh, Tayel El-HasanCoronadite was reported from the upper-most horizons of the Middle Cambrian sediments at two locations in Wadi Dana, central Wadi Araba and Jordan. The unit is composed of dolomite, limestone and shale. Geochemical investigations show appreciable variations in Mn, Pb, Fe, K and Ba contents in the coronadite between the two studied sites. Pb was found to increase downward in … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,551 accessesView PDFCite