Document Detail


Heavy metal composition of some solid minerals in Nigeria and their health implications to the environment.
MedLine Citation:
PMID:  19093508     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Heavy metals overload taken via ingestion, inhalation and dermal have been found to be detrimental to both the occupationally exposed group and member of the public. The body burden of these metals has been a source of concern in environmental safety regulatory programs. The risk factor becomes potentially high in an environment where regulatory safety criteria are either neglected or not available. The implication of indiscriminate or unregulated mining activities has been pointed out as a major risk to public health. In order to assess the potential toxicological and radiological health hazard posed to the environment due to mining activities in Nigeria, solid mineral ores (iron, tin and tantalite) from south-western and north-central (Kogi and Ekiti States) part of the country were analysed for their trace-metal contents. The analysis was performed using Energy Dispersive X-Ray Fluorescence (EDXRF) analyses spanning several months between 2005 and 2006. The samples were found to contain some major, minor and trace elements of varying concentrations. The elements reported here are K, Ca, Ti, V, Cr, Mn, Fe, Ni, Sr, Y, Zr, Nb, Sn, Ta, Re, Th, U, Sc, Cd, Bi, Ra and Zn. Toxic metal of serious environmental and public concern like Cadmium was detected. The possibility of altering heavy metal constituents of the natural ecosystem as a result of mining activities and the implications of such alterations has been enumerated. Possible pathway into the food chain as a result of mining activity has also been presented.
Authors:
Adeseye Muyiwa Arogunjo
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Pakistan journal of biological sciences: PJBS     Volume:  10     ISSN:  1028-8880     ISO Abbreviation:  Pak. J. Biol. Sci.     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2008-12-19     Completed Date:  2009-02-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101247723     Medline TA:  Pak J Biol Sci     Country:  Pakistan    
Other Details:
Languages:  eng     Pagination:  4438-43     Citation Subset:  IM    
Affiliation:
Department of Physics, Federal University of Technology, P.M.B. 704, Akure, Nigeria.
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MeSH Terms
Descriptor/Qualifier:
Air Pollutants / analysis
Environmental Health
Environmental Monitoring
Environmental Pollution*
Geologic Sediments / analysis
Iron / analysis
Metals, Heavy / analysis*
Minerals / analysis
Mining
Nigeria
Tin / analysis
Trace Elements / analysis
Chemical
Reg. No./Substance:
0/Air Pollutants; 0/Metals, Heavy; 0/Minerals; 0/Trace Elements; 7439-89-6/Iron; 7440-31-5/Tin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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