Title: ISOLATION AND IDENTIFICATION OF HEAVY METAL TOLERANT BACTERIA
FROM ARAPAJA DUMPSITE, IBADAN,OYO STATE
Authors: Bankole, S. O*
, Adekunle, E.A
, Oyewunmi, R.V
and Olomola, D.B
Abstract: Dumpsites constitute nuisance and lots of environmental pollution because of different
components that make up the dump which are mostly household and industrial wastes.
Decomposition of these wastes introduce some toxic materials into the soil that harbour
microorganisms and possibly have negative impact on the soil microflora. Therefore this
research investigated the level of heavy metal contamination in the soil from Arapaja dumpsite
and also the presence of bacteria tolerant to the high level of contamination. Relatively high
concentration of all metals investigated was recorded which are in no way compared to WHO
standard for permissible limit for metals in soil. Presence of some bacteria were observed which
indicates that those isolates can tolerate the level of heavy metal contamination and present them
as good candidates for restoration of heavy metal contaminated soils.
