Evaluation of Bioavailability of Metals in Underground Water within the Vicinity of Dumpsites in Zaria Metropolis, Nigeria

Simple item page
dc.contributor.authorUzairu, Adamu
dc.contributor.authorUba, Sani
dc.contributor.authorM. S. Sallau,
dc.contributor.authorAbba, Hamza
dc.contributor.authorOkunola, Oluwole Joshua
dc.date.accessioned2016-06-02T09:42:42Z
dc.date.available2016-06-02T09:42:42Z
dc.date.issued2013
dc.description.abstractA sequential extraction was used to fractionate Zn, Pb, Cu, Cd, and Hg in waters from the hand- dug wells 100m away from the ten dunrpsites and a control site, 300m away from the Kusfa dumpsite in Zaria metropolis, Nigeria in both the wet and dry seasons. The bioavailable fractions across the seasons and sites were found to be the most abundant pools for all the metals with the exception zinc metal from the NTC dunrpsites wells in the dry season which had only 31.50%. Furthermore, the total extractable fraction for cadmium (Cd), lead (Pb) and mercury were above the WHO (2006) tolerable limits in both the seasons while the nutritive metals, zinc (Zn) and copper (Cu) were within the acceptable limit. However, the total extractable concentrations recorded in the wet across the sites were found lrigher than those in the dry- season, this is attributed leach ability of the metals to the underground water. Overall the potential bioavailabilities of the metals were found to follow similar trend across the seasons (wet and dry): Hg > Cd > Pb > Zn > Cu. In addition, the analysis of variance revealed a significant difference (P<0.05) among the metals concentrations across the sites and among the fractions. This strongly indicates the existence of pollution at the studied dumpsites communities. The bioaccumulation of the toxic metals noted in this study may lead to a serious health effects to the inhabitants as the bioaccumulation of lead affects the intelligence quotient in infants and it is carcinogenic whereas that of the cadmium leads to cancer of the kidney, hypertension and some vascular diseases, it also inhibits the activity of enzymes such as the adenosine triphosphate (ATP) and amylase. Mercury toxicity affects the cardiovascular, nervous, respiratory, gastrointestinal, hematologic, immune and reproductive systems. The raw waters in these dumpsites were found unfit for drinking including those at the control site.en_US
dc.description.sponsorshipThe research is financed by Petroleum Trust Fund Development (PTDF) and Ahmadu Bello University, Staff Development Programen_US
dc.identifier.urihttp://hdl.handle.net/123456789/7939
dc.language.isoenen_US
dc.subjectFractionation,en_US
dc.subjectHeavy metals,en_US
dc.subjectHand-dug well waters,en_US
dc.subjectDumpsites,en_US
dc.subjectZaria Metropolisen_US
dc.titleEvaluation of Bioavailability of Metals in Underground Water within the Vicinity of Dumpsites in Zaria Metropolis, Nigeriaen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Evaluation of Bioavailability of Metals in Underground Water within the Vicinity of Dumpsites in Zaria Metropolis, Nigeria.pdf
Size:
2.66 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.58 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Preprint Journal Articles