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Human Exposure to Arsenic and Other Potentially Toxic Metals in Some Waters of Biu Volcanic Province, North-Eastern Nigeria PDF Ebook

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The Biu Volcanic Province is 1 of the largest Volcanic Provinces in Nigeria covering an space of 5000 km2 with a thickness of 250m. Geochemical analysis of the volcanic soil revealed the complete leaching of the major elements (CaO, K2O, MgO, MnO, and TiO2) from the surface soil probably into water sources. This may explain the extremely high Ca and K levels especially in the stream water where they display values of 348mg/l and 36 mg/l as versus 200mg/l to 12 mg/l respectively of WHO admissible limits for drinking water. The accumulation of transition metals in the soil (Co 84-111ppm; Cr: 230-441ppm); Ni: 169-237ppm) is geogenic derived from the weathering of the host basaltic rock. Cr, Ni, and Cu do not easily form soluble ions in solution explaining why they display lower levels below their respective WHO admissible limits for drinking water. The absence in the soil profile and the extremely higher values of potentially harmful elements (PHEs) (As, Se, Sb, and Pb) in the spring and stream water as opposed to the lower values in the wells and borehole water suggest their extreme solubility, direct leaching and transportation of these elements from the surrounding rocks into the surface water, which may be source of exposure to the inhabitants.


  • Human Exposure to Arsenic and Other Potentially Toxic Metals in Some Waters of Biu Volcanic Province, North-Eastern Nigeria Ebook Download
  • Admu Usman Mohammed, Adamu Usman Mohammed
  • Anchor Academic Publishing
  • doc document
  • PDF
ISBN: 9783954891764 ISBN-10: 395489176X Number Of Pages: 116 Published: 28th August 2014 Publisher: Anchor Academic Publishing Country of Publication: US Dimensions (cm): 21.0 x 14.8 Weight (kg): 0.16
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