%0 Journal Article
%T OCCURRENCE AND PROFILE OF POLYCYCLIC AROMATIC HYDROCARBONS IN COALS AND SHALES FROM EASTERN NIGERIA
%A Jude .E. Ogala
%A Chukwujindu M.A. Iwegbue
%J Petroleum and Coal
%D 2011
%I Slovnaft V?RUP
%X The concentrations and profiles of polycyclic aromatic hydrocarbons (PAHs) in coal and shale samplesfrom eastern Nigeria were examined. The total concentrations of PAHs in the samples ranged from304¨C 4082 ¦Ìgkg-1 and 274 ¨C 1815 ¦Ìgkg-1 for coal and share samples respectively. The profiles of PAHs inthe coal and shale samples differed significantly. The coal samples had higher PAHs concentrationsthan the shale samples. In the coal samples 4-rings PAHs showed predominance over 2, 3, 5-and 6-rings polycyclic aromatic hydrocarbons while 3-rings polycyclic aromatic hydrocarbons showedpredominance over 2,4,5 and 6-rings PAHs in the shale samples. The results indicate coal from easternNigeria are characterized with high contents of 3 and 4-rings PAHs and poorer in 2,5 and 6-rings PAHs.This suggests that the coal samples are from seams of paralic origin.
%K polycyclic aromatic hydrocarbons
%K coals
%K shales
%K Nigeria.
%U http://www.vurup.sk/sites/default/files/downloads/pc_3_2011_ogala_121_0.pdf