Abstract
The concentration of various major and trace metals (Na, K, Ca, Mg, P. Mn, Cu, Zn, B, Fe, Cd. Pb, Cr, Ni, Co, and V) were determined by means of Atomic Absorption Spectrophotometer (AAS, Perkin-Elmer Analyst 700 single beam) in the bottom ash of stem wood of Acacia stenophylla A. Cunn. Ex. Benth. burnt in an open hearth. The metals were in following order of concentration: Major metals: Ca >> > K > Fe > Mg > P > Mn > Na > Zn > B > Cu Trace metals: Pb > Cr > V > Co > Ni > Cd The metallic contents were compared with that of some African and Australian Acacia species, some Pinus species and that in the bottom ash of some energy-generating units of European countries reported in the literature. The heavy metals contents in A. stenophylla bottom ash were found within permissible limits from land application viewpoint for forest nutrification in acidic soils deficient for K, Ca and P.
