J. Phys. IV France
Volume 107, May 2003
Page(s) 397 - 400

J. Phys. IV France
107 (2003) 397
DOI: 10.1051/jp4:20030325

Trace element hydrochemical assessment of the Calabar Coastal Plain aquifer (Southern Nigeria) using factor analysis

A.E. Edet1, B.J. Merkel1 and O.E. Offiong2

1  Institute for Geology, University of Mining and Technology, Freiberg, Germany
2  Department of Pure and Applied Chemistty, University of Calabar, Calabar, Nigeria

This article present results of hydrochemical assessmcnt of 43 trace element content of a costal plain sand aquifer. The aim was mainly to determine the natural background evel of trace elements due to anticipated urban and industrial development as a result of the establishment of an export free zone in the area. Results show that all the elements considered are below common averages. Statistical factor analysis indicate two geochemical groups of elements. The first is related to natural geochemical process and the second to tidal flushing of the Calabar River estuary. This indicate that the sources of the elements are natural. This data which is the first of its kind in the area will form a baseline data set for future pollution monitoring and vulnerability assessment of the aquifer.

© EDP Sciences 2003