SOURCE APPORTIONMENT OF POLYCYCLIC AROMATIC HYDROCARBONS IN SELECTED SOIL SAMPLES WITHIN DELTA STATE, NIGERIA USING ISOTOPE COMPOSITION

Ivwurie W., Emelife S.C., Sun C. and Snape C.

Department of Chemistry,

Federal University of Petroleum Resources, Effurun

Email: wivwurie@yahoo.com 

ABSTRACT

Five soil samples from five different communities in Delta state were analyzed for their isotopic compositions using gas chromatograpy-isotope ratio mass spectrometry (GC-IRMS). The bulk isotope ratio ranged from -25.5 ‰ to -27.4 ‰.  The bulk isotope ratio for samples from Erhiemu, Egbo-Uwherhie and Afioseri suggested that the PAHs had predominant contributions from crude oil source while that for the other two samples from Abraka (road side and farm field) showed PAH input from other sources (pyrosynthetic origin).