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9 results for “minor elements”
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Research ArticleOpen accessIn the keywordsRare Earth Elements and Geochemical Partitioning of Zn and Pb in Sediments of an Urban RiverShaila Sharmin, H. M. Zakir, Naotatsu ShikazonoProblem statement: Urban river sediment pollution due to Zn and Pb is a serious problem in all over the world. The source and level of Zn and Pb pollution in sediments of Nomi River of Ota Ward, one of the most industrialized areas in Tokyo, Japan is still lacking. Approach: The present study focused on Rare Earth Elements (REEs) and … …American Journal of Environmental Sciences, Vol. 6, Issue 5 · 31 Oct 2010 · 6,966 accessesView PDFCite
Research ArticleOpen accessIn the abstractHeavy Metals Content and Ecotoxicity of Sediments from the Congo RiverDidier Makonko Mabidi, Honoré Manyingu Mutwejile, Georgette Ngakiama Beni Ngweme et al.This research aimed to quantify the contamination of Congo River sediments by heavy metals and to evaluate their ecotoxicological effects in the municipalities of Maluku, Gombe, and Kinsuka, Kinshasa Province. Metal concentrations in sediments reached 340 mg kg-1 for Cr, 310 mg kg-1 for Cu, 826 mg kg-1 for Zn, 63 mg kg-1 for as, 1.9 mg kg-1 for Cd, … …American Journal of Environmental Sciences, Vol. 20, Issue 1 · 9 Nov 2024 · 6,046 accessesView PDFCite
Research ArticleOpen accessIn the abstractNutritive Status of Maytenus heterophylla and Acacia nilotica Leaves Cultivated in Winter from Two Varied LandscapesMzuyanda Vela, Sabelo Christian Gajana, Emrobowansan Monday IdamokoroWinter season happens to be the period prone to drought and in most cases bedeviled with incidences of low-quality veld and a corresponding high rate of livestock mortality. The present research aimed to assess the nutritive worth of Acacia nilotica as well as Maytenus heterophylla leaves in the winter season from two varied landscapes (high landscape and low landscape). A … …OnLine Journal of Biological Sciences, Vol. 24, Issue 3 · 8 Apr 2024 · 5,299 accessesView PDFCite
Research ArticleOpen accessIn the abstractFormation of Tl-1212 Phase in CR Substituted (Tl1-xCrx) Sr2CaCu2O7 SuperconductorRanjbar G.M., R. Abd-ShulorSuperconducting samples of (Tl1-xCrx) Sr2CaCu2O7 for x = 0.0-0.7 have been prepared by a solid state reaction technique at normal pressure using high purity elements. The powder X-ray diffraction patterns have been studied for samples. All samples showed the Tl-1212 as the major phase and Tl-1201 as the minor phase. The superconducting transition temperature Tc has been determined from the … …Physics International, Vol. 3, Issue 2 · 20 May 2013 · 6,694 accessesView PDFCite
Research ArticleOpen accessIn the abstractChemical and Statistical Analyses of Elements in River Water of Morava e BincesFatbardh Gashi, Naser Troni, Fatmir Faiku et al.The objective of this research was assessment of environmental toxic elements downstream the river of Morava e Binces (Kosovo) and this study is a continuation of earlier studies of surface waters in our country. The sampling and analysis are conducted in accordance with EU and WHO standards. This study uses both quantitative and qualitative analysis to assess the water quality … …American Journal of Environmental Sciences, Vol. 9, Issue 2 · 8 Apr 2013 · 8,672 accessesView PDFCite
Research ArticleOpen accessIn the abstractSuitability Evaluation of Groundwater for Irrigation, Drinking and Industrial PurposesM. A. Hakim, A. S. Juraimi, M. Begum et al.Problem statement: Groundwater is an important source of freshwater for agricultural, drinking and domestic uses in many regions of the world including Bangladesh. Demand of groundwater has been increasing day by day for irrigation by bringing more area under cultivation. As a drinking water the bottled water market currently has an average annual growth rate of 7.4% between 2002 and … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 8,644 accessesView PDFCite
Research ArticleOpen accessIn the abstractSoil Quality of Die off and Die Back Mangrove Grown at Al-Jubail Area (Saudi Arabia) of the Arabian GulfAkram Ali, Ahmed Alfarhan, Ernest Robinson, Wafa AltesanThe declining mangrove vegetation along the Arabian Gulf coast necessitates a thorough study for finding out the soil status and for rehabilitating the affected population. In this study, soil supporting die back/die off mangrove plants at Al-Jubail area was studied. Field experiments were also conducted to determine the success/failure ratio of the germinated seeds in both healthy and damaged soils. … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 7,617 accessesView PDFCite
Research ArticleOpen accessIn the abstractPetrology and Origin of Ultramfic Xenoliths from North Eastern Jordan VolcanoesHassan Al-Fugha, Mazen AL-AmairehThe distribution of major, minor and trace elements in the Cenozoic alkali basalt from north-eastern Jordan indicates a homogeneous lava flow from a mantle source. These basaltic rocks contain abundant upper mantle xenoliths (spinal lherzolite, harzburgile and olivine- websterite). Theses xenoliths contain olivine, orthopyroxne, clinoporoxene and a few amounts of spinal. Their mineral assemblages, chemistry, texture and major elements abundances … …American Journal of Applied Sciences, Vol. 4, Issue 7 · 31 Jul 2007 · 7,013 accessesView PDFCite