پديدآورندگان :
Keshavarzifard Mehrzad mkf1759@yahoo.com Environmental Forensics Research Center (ENFORCE), Faculty of Environmental Studies, Universiti Putra Malaysia,
43400 UPM, Serdang, Selangor, Malaysia; Department of Earth Sciences, Faculty of Sciences, Shiraz University, Shiraz 71454, Iran , Pauzi Zakaria Mohamad drpauzi@gmail.com Environmental Forensics Research Center (ENFORCE), Faculty of Environmental Studies, Universiti Putra Malaysia,
43400 UPM, Serdang, Selangor, Malaysia , Keshavarzifard Shahin shahinkf@yahoo.com Department of Environmental Sciences, Faculty of Sciences , Zanjan University, Zanjan, Iran , Sharifi Reza rezasharifi@shirazu.ac.ir Department of Earth Sciences, Faculty of Sciences, Shiraz University, Shiraz 71454, Iran
كليدواژه :
Aliphatic Hydrocarbons , Sediment , Pollution , Source , Peninsular Malaysia
چكيده فارسي :
Surface sediments from the Kedah and Merbok Rivers and Estuaries, Peninsular Malaysia were analyzed for n-alkanes (nC10-nC36) using gas chromatography–mass spectrometry (GC–MS). The molecular indices of specific n-alkanes including even carbon/odd carbon numbered alkanes, carbon preference index (CPI) values, terrestrial to aquatic (TAR) ratios were calculated to evaluate the possible sources of hydrocarbons. The concentrations of total alkanes varied from 2241 to 11478 and 1684 to 3811 µg g-1 dw in the Kedah and Merbok Rivers, respectively. The even carbons numbered alkanes were predominant in the collected samples, which can be interpreted as a consequence of microbial activities. The carbon preference index (CPI) values (1 to 1.06) suggested significant contribution of aquatic organisms or petroleum hydrocarbons for n-alkanes sources. This is confirmed by terrestrial to aquatic (TAR) ratios.
