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Paper Information

Journal:   IRAN-WATER RESOURCES RESEARCH   SPRING 2009 , Volume 5 , Number 1 (13); Page(s) 34 To 43.
 
Paper: 

ASSESSMENT OF PAHS COMPOUND CLEAN UP LEVELS REGARDING GROUNDWATER PRESERVATION SOUTH OF TEHRAN OIL REFINERY

 
 
Author(s):  TAHERI E.*, GITIPOUR S.
 
* KHAJE NASIR TOOSI UNIVERSITY OF TECHNOLOGY, TEHRAN, IRAN
 
Abstract: 

Leakage of petroleum compounds from Tehran Oil Refinery (TOR) has caused soil contaminations in this area. These compounds can enter the groundwater and cause direct or indirect hazardous effects.
This research is focused on Poly Aromatic Hydrocarbons (PAHs), the main group of petroleum compounds. Gas Chromatography (GC) analysis are made on 19 samples collected in grid sampling from sides and center of the stream adjacent to the TOR. Also according to the geotechnical properties of the area and considering the physical and hazardous quality of the contaminants, clean up levels are assessed for the groundwater preservation. Among 16 poly aromatic priority pollutants, four compounds which have the highest concentrations in the area and also have carcinogenic effects are evaluated. These compounds are benzo [a] pyren (BaP), benzo [k] fluoranthene (BaK), benzo [a] anthracene (BaC), and chrysene (Chr).
This study showed that the concentration of BaP, BkF, and BaA were higher than the allowable concentrations. Also in case of BaP, maximum evaluated concentration (638ppm) was 50 times higher than the allowable concentration (13.2 ppm).
Different dispersing mechanisms are also evaluated and applicable methods are discussed in order to control the contaminants. In addition, based on geotechnical properties of the soil and considering physical specifications of the contaminants, biologic methods and phyto-remediation via phyto-transformation and rhizosphere-bioremediation are recommended to clean up the site.

 
Keyword(s): POLY AROMATIC HYDROCARBONS, CLEAN-UP LEVELS, BENZO [A] PYRENE, BENZO [K] FLUORANTHENE, CHRESENE
 
References: 
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