Determination of heavy metals in Bouregreg river sediments by Instrumental Neutron Activation Analysis

 

H. Bounouira1,3,5*, A. Choukri1, R. Cherkaoui2, A. Gaudry3,  M. Treuil3,

O.k. Hakam1, S.  Chakiri4, M. Bounakhla5, K. Embarch5

1 Equipe de Physique et Techniques Nucléaires, Laboratoire de Physique de la Matière et Rayonnement,

Université Ibn Tofail, Faculté des Sciences, B.P. 133, 14 000, Kénitra, Morocco.

2 Laboratoire de Physique Nucléaire, Université Mohammed V-Agdal, Faculté des Sciences,

4 Avenue Ibn Battouta B.P. 1014 RP, Rabat Morocco

3 Laboratoire Pierre Süe CEA – CNRS / UMR 9956 Centre de Saclay, Bât. 637 91191 Gif sur Yvette Cedex France

4 Equipe de Géomatériaux et Environnement, Laboratoire des Géosciences Appliquée, Université Ibn Tofail, 

Faculté des Sciences, B.P. 133, 14 000, Kénitra, Morocco.

5Centre National de l'Énergie, des Sciences et des Techniques Nucléaires (CNESTEN), B.P. 1382, R.P,  10001- Rabat, Morocco

* Corresponding author. E-mail: bounouira2000@yahoo.fr

Received: 13 July 2006; revised version accepted: 03 March 2008

 

Abstract

     Concentrations of heavy metals (As, Co, Cr, Fe, Mn, Ni, Sb, Ti, V ad Zn) were evaluated in 10 sediment samples from the Bouregreg river (Morocco) by using the Instrumental Neutron Activation Analysis (INAA).  This is a first step in order to determine regional “background” levels of heavy metals and to obtain the metal distribution patterns in this region. The certified reference material (Soil-7) was used for checking the reliability of results. Results obtained show typical metal enrichments estimated through the enrichment factor relatively to the upper continental crust composition. A general diffuse origin of heavy metals was observed and some local inputs may occur linked urban wastes (garbage dump in the Aguelmous area with Sb and As enrichment).

 

Keywords: Heavy metals; Bouregreg River; INAA; Sediments samples.

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