Levels of Polycyclic Aromatic Hydrocarbons (PAHs) in marshy soils and sediments within Warri and its environs, Nigeria by ADEJOKE VICTORIA BAYOWA Submitted in accordance with the requirements for the degree of MASTER OF SCIENCE in the subject ENVIRONMENTAL SCIENCE at the UNIVERSITY OF SOUTH AFRICA, SUPERVISOR: Dr I.E. AGBOZU CO-SUPERVISOR: Prof O R AWOFOLU NOVEMBER 2014