Comparison of the Polycyclic Aromatic Hydrocarbons and Heavy Metal Concentrations in Air for the July 2012 And Oct.2013 At Baiji District, Iraq

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Author(s) Moutaz A. Al-Dabbas | Raad Al- Khafaji
Pages 513-122
Volume 5
Issue 10
Date October, 2016
Keywords TSP, Heavy Metals, PAH, Baiji Oil Refinery, Baiji, Iraq

The total suspended particles (TSP) were measured at selected locations in two periods July 2012 and Oct. 2013 at area near the Baiji Oil Refinery. The heavy metals (Co, Ni, Pb, Zn, Cr, and Cd) and polycyclic aromatic hydrocarbons (PAHs) concentrations in aerosol from air samples were determined. Aerosol samples were collected, total of 34 samples (17 samples for both sampling periods) were analyzed by GC-MS in order to determine 16 PAH compounds. The results of average concentration of suspended particles (TSP) are higher than the permissible limits of the Iraqi National and the world limits at the both periods, July 2012 (2714.1 μg/m3) and October 2013 (1124.8 μg/m3). Comparison of the averages of the heavy metals (Co, Ni, Pb, Zn, Cr, and Cd) with the national and world limits, noticed that they are lower than these limits. Except for the concentration of Cr and Cd at the two periods and Pb in July only, were higher than the world limits. Naphthalene was the most abundant PAH detected and there is strong correlation between total suspended particles (TSP) and total polycyclic aromatic hydrocarbons (TPAH) in all the sampling sites for both sampling periods.The variation between the two periods indicates the direction, speed and the intensity of the sand dust storms effect during the months of the research. Consequently, the total TSP, heavy metals and polycyclic aromatic hydrocarbons (PAHs) concentrations in aerosol concentrations for both sampling periods showed an increase at the direction away from the Baiji Oil Refinery mostly at the south and east directions depending on wind direction.

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