Effects Of Petroleum Level (waste Oil) On Soil Fertility In The Vicinity Of A Mechanic Workshop

1.0       INTRODUCTION             Used motor oil is a very dangerous polluting product. It contains PAH’s and high levels of metals. PAH’s such as benzo[a]pyrene, are well known for their high carcinogenity. Considerable quantities of heavy metals such as Pb, Zn, Cu, Cr, Ni, and Cd are contained in used crankcase oil, these metals are highly toxic to organisms In Nigeria, it is common among motor mechanics to dispose waste oils into gutters, water drains and soil (Okonokhua et al., 2007).  Waste oils is defined as used lubricating oils obtained after servicing and subsequently draining from…