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European Journal of Scientific Research - EuroJournals

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<strong>European</strong> <strong>Journal</strong> <strong>of</strong> <strong>Scientific</strong> <strong>Research</strong><br />

ISSN 1450-216X Vol.20 No.2 (2008), pp.302-316<br />

© Euro<strong>Journal</strong>s Publishing, Inc. 2008<br />

http://www.eurojournals.com/ejsr.htm<br />

Groundwater Pollution in Africans Biggest Towns: Case <strong>of</strong> the<br />

Town <strong>of</strong> Abidjan (Côte D’ivoire)<br />

Ahoussi Kouassi Ernest<br />

Laboratoire des Sciences et Techniques de l’Eau et de l’Environnement<br />

UFR des Sciences de la terre et des ressources Minières 22 BP 582 Abidjan 22, Université de Cocody<br />

E-mail: ahoussi_kouassi@caramail.com<br />

Soro Nagnin<br />

Laboratoire des Sciences et Techniques de l’Eau et de l’Environnement<br />

UFR des Sciences de la terre et des ressources Minières 22 BP 582 Abidjan 22, Université de Cocody<br />

Soro Gbombélé<br />

Laboratoire des Sciences et Techniques de l’Eau et de l’Environnement<br />

UFR des Sciences de la terre et des ressources Minières 22 BP 582 Abidjan 22, Université de Cocody<br />

Lasm Théophile<br />

Laboratoire des Sciences et Techniques de l’Eau et de l’Environnement<br />

UFR des Sciences de la terre et des ressources Minières 22 BP 582 Abidjan 22, Université de Cocody<br />

Oga Marie Solange<br />

Laboratoire des Sciences et Techniques de l’Eau et de l’Environnement<br />

UFR des Sciences de la terre et des ressources Minières 22 BP 582 Abidjan 22, Université de Cocody<br />

Zade Sompohi Pacôme<br />

Laboratoire des Sciences et Techniques de l’Eau et de l’Environnement<br />

UFR des Sciences de la terre et des ressources Minières 22 BP 582 Abidjan 22, Université de Cocody<br />

Abstract<br />

Groundwater <strong>of</strong> the town <strong>of</strong> Abidjan is collected by many private traditional wells.<br />

This study use hydrochimical, isotopic and statistical methods whose, classification in<br />

typical <strong>of</strong> water and multivariable analysis. The physicochemical analyses carried out on<br />

this water show that they are acid. The average temperature <strong>of</strong> water is close to the ambient<br />

temperature (25°C) <strong>of</strong> the city. Groundwaters are strongly mineral bearing. They are<br />

chlorinated sodic (76%) and bicarbonated sodic (26%). The contents <strong>of</strong> certain chemical<br />

elements in particular the nitrates and lead present values excessive higher than the<br />

standard <strong>of</strong> potability defined by the organization <strong>of</strong> the health (WHO) <strong>of</strong> 50 mg/L and 0,1<br />

mg/L what thus endangers pubic health which consumes them. The groundwaters collected<br />

<strong>of</strong> wells in the town <strong>of</strong> Abidjan are polluted. The principals components analyse shows that<br />

this pollution is <strong>of</strong> anthropic origin. It is the consequence <strong>of</strong> the domestic, industrial and or<br />

artisanal activities carried out in the town <strong>of</strong> Abidjan. The contents <strong>of</strong> stable isotopes <strong>of</strong> the<br />

environment indicate that this tablecloth is reloaded starting from the infiltration <strong>of</strong><br />

rainwater.

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