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- W2794287116 abstract "The present work was aimed at investigating the concentration levels and seasonal distribution pattern of polycyclic aromatic hydrocarbons (PAH), polychlorinated biphenyls (PCB), chlorobenzenes (CB), and organochlorine pesticides (OCP) of Zarqa River sediments in Jordan. Sediment samples were collected along Zarqa River and its two main tributaries namely Seil Zarqa and Wadi Dhuliel in the periods from December 2000 to January 2002. An efficient extraction and clean up procedure was developed and optimised. Organchlorine compounds were quantified using gas chromatography coupled to electron capture detection (GC/ECD) and gas chromatography coupled to mass spectrometry (GC/MS) was used for PAH quantification. The concentration levels of PAH for summer sampling period were found higher by a factor 2-3 than for winter one. The distribution of individual PAH in sediments varies widely depending on their structure and molecular weight. PCB have shown similar trends to that of PAH trends along the sampling sites and a significant correlation was observed between their total concentrations. CB were detected in low concentration levels. The hexachlorobenzene (HCBz) is the predominated over the pentachlorobenzene (PCBz). The results have shown that the studied area is contaminated with OCP residues. However, the DDT metabolites were mostly occurred of the OCP. The occurrence of the organochlorine compounds depended on the predominated anthropogenic activities, time of application, rainfall quantities as well as physical and chemical sediment properties. Generally, the concentrations of most target compounds were significantly correlated to the sediment organic matter." @default.
- W2794287116 created "2018-03-29" @default.
- W2794287116 creator A5081344848 @default.
- W2794287116 date "2003-05-22" @default.
- W2794287116 modified "2023-09-24" @default.
- W2794287116 title "Residue Analysis of Organic Pollutants in Sediments from the Amman/Zarqa Area in Jordan" @default.
- W2794287116 doi "https://doi.org/10.24355/dbbs.084-200511080100-525" @default.
- W2794287116 hasPublicationYear "2003" @default.
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