Distribution of hydrocarbon in sedimen of Sungai Kuala Terengganu

Abstract

Hydrocarbon pollution in estuary area has attracts many attention due to it hazardous properties of hydrocarbon. Estuary area is a productive area, thus we must keep it in secure level. Thus monitoring the level of hydrocarbon level in estuary area has become a concern. Some of component of hydrocarbon has demonstrates carcinogenic effect to human body, especially polycyclic aromatic hydrocarbon (PAHs). Purpose of this study is to determine the distribution of total aliphatic hydrocarbon (T AHs) and polycyclic aromatic hydrocarbon (P AHs) at each 9 station and to determine its concentration. Samples were collected using Ponar Grab, back to laboratory it was dried, undergoes soxhlet extraction process, and then it fractionated, lastly samples from each stations were injected into GC-FID. From station I to station 9 there are 3 species ofTAHs which is n-Pentatriacontane, n-Nonatriacontane, dan n-Tetracontane while 2 species of P AHs which is naphthalene dan acenaphthene are not found in Sungai Kuala Terengganu. For TAHs identification, n-Heneicosane can be found in all 9 stations and its concentration is varies from l.180ppb to 108.245ppb. For PAHs species that were present at every station is pyrene and lndeno(l,2,3-cd)pyrene.