Trace Elements Analysis of Okaba Coal and their Environmental Implications

Abstract

Trace elements analytical studies were carried out on coal samples from Okaba coal deposits in the lower Benue Trough of Nigeria to ascertain their constitutional levels and consequent environmental impact. Chemical analysis of the coal samples indicated that they contain on average basis 2.77% Fe, 0.06% Mn, 13 ppm Cd, 0.013 ppm Ni. Copper was not detected in any of the samples. The trace elements showed concentrations generally lower than the generally anticipated concentrations in coals. This implies that the mining, processing and utilization of the Okaba coal will have only minimal negative environmental and health impacts on account of its negligible trace elements content