Table of Contents
Advances in Geology
Volume 2014, Article ID 894103, 8 pages
http://dx.doi.org/10.1155/2014/894103
Research Article

Trace Element Soil Quality Status of Mt. Cameroon Soils

1Department of Environmental Science, University of Buea, Buea, Cameroon
2Department of Geology, University of Buea, Buea, Cameroon

Received 15 April 2014; Revised 27 August 2014; Accepted 8 September 2014; Published 23 September 2014

Academic Editor: Wayne Stephenson

Copyright © 2014 Veronica E. Manga et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The concentrations of Cu, Co, Zn, Ni, V, and Cr in topsoils at six sites located along the lower slopes of Mt. Cameroon were assessed for their potential toxicity to humans and the ecosystem. Soils were collected from horizons down to a depth of 70 cm and analysed for trace element concentration by ICP-MS technique. The Dutch soil quality standards which use %clay/silt and organic matter content to derive target values were used to assess the contamination levels of the soils. The content of these soils was also compared to the United Kingdom ICRCL “soil trigger” values. Zinc and Cu values were persistently below the normal value (A) and occurred in the lower elevation, the region of extreme weathering, while Cr and V values were above the intervention (C) values. The high content of Cr in common fertilisers poses a potential risk in toxicity in the higher elevations experiencing lower weathering rates, where soil Cr levels are elevated.