alexa The Catchment Area of Kadey in East-Cameroon: Assessment of Arsenic Contamination in Deep Groundwater Resources | OMICS International | Abstract
ISSN: 2381-8719

Journal of Geology & Geophysics
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Research Article

The Catchment Area of Kadey in East-Cameroon: Assessment of Arsenic Contamination in Deep Groundwater Resources

Kouassy Kalédjé PS1,2*, Ndam Noupayou JR1, Djomou Djomga PN3 and Mvondo Ondoua1
1Laboratory of Engineering Geology and Alterology, Department of Earth Sciences, Faculty of Science, University of Yaounde I, PO Box: 812, Yaounde, Cameroon
2Department of Mining and Geological, Sub-Regional Bilingual University of Mining, Sciences, Technology, Management and Professional Training, PO Box: 863, Yaounde, Cameroon
3Laboratory of Material and Inorganic Industrial Chemistr, Department of Applied Chemistry, National School of Agro-Industrial Sciences (ENSAI), University of Ngaoundéré, PO Box: 455 Ngaoundere, Cameroon
*Corresponding Author: Kouassy Kalédjé PS, Laboratory of Engineering Geology and Alterology, Department of Earth Sciences, Faculty of Science, University of Yaounde I, PO Box: 812, Yaounde, Cameroon, Tel: +237699095620, Email: [email protected]

Received Date: Apr 09, 2016 / Accepted Date: Jun 29, 2016 / Published Date: Jul 04, 2016

Citation: Kalédjé PSK, Noupayou JRN, Djomga PND, Ondoua JM (2016) The Catchment Area of Kadey in East-Cameroon: Assessment of Arsenic Contamination in Deep Groundwater Resources. J Geol Geophys 5:250.DOI: 10.4172/2381-8719.1000250

Copyright: © 2016  . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

This present study, in general, was carried out to assess arsenic in deep groundwater resources in the catchment area of Kadey, East-Cameroon and to predict arsenic mobilization process in relation to copper (indicatives aspects), iron, manganese, pH and ORP. Seventy-two (72) deep groundwater samples were collected during twenty four months between January 2014 and December 2015. The depths of the wells were ranged from 7 to 34 m. In year 2014 and year 2015, arsenic concentration in 17% and 26% of examined groundwater wells, respectively exceeded permissible World Health Organization (WHO) guideline value of 0.010 mg/L for drinking water. The concentrations of arsenic were in the range between arsenic is medium correlated with copper. The strong negative correlation between arsenic and ORP indicates that arsenic mobilization occurs under reducing condition. These distinct relationships indicate that arsenic release is considered to be affected by the reductive dissolution of Fe/Mn oxides in the groundwater. Arsenic has very weak negative correlation with pH suggesting less effect of pH on arsenic mobilization. Arsenic is not significantly correlated with the season which infers similar distribution of arsenic in both seasons. Arsenic varies spatially in groundwater of the valley showing high concentrations in central groundwater district.

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