Volume 17, Issue 64 (summer 2013)
jwss 2013, 17(64): 95-107 |
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feizi H, Chorom M, Heidari A. Study of the Amount and Distribution Pattern of Soil Heavy Metals (Ni, Cd) in Soils Affected by Hydrocarbon Pollution. jwss 2013; 17 (64) :95-107
URL: http://jstnar.iut.ac.ir/article-1-1509-en.html
URL: http://jstnar.iut.ac.ir/article-1-1509-en.html
Shahid Chamran University , hfeizi.soil2008@yahoo.com
Abstract: (22360 Views)
In order to describe soils polluted with hydrocarbons, the amount and distribution pattern of soil heavy metals (Ni, Cd) in soils were studied. Soil samples were taken from one of the western oil field of Iran. The field was naturally exposed to crude oil spillage into soil and consequently was environmentally polluted during the development, production, transportation and storage of crude oil. Sampling was started near the oil wells with maximum relative contamination and continued to the remote places based on grid sampling pattern. Samples were characterized by physicochemical analysis. The results revealed different levels of total hydrocarbons (from 0.12 to 2.99 mg/kg of dry soil), Ni (from 32 to 136 mg/kg. of dry soil) and Cd (from 0 to 4mg/kg of dry soil). In addition, the role of soil agents such as pH and EC and sedimentary indexes was considerable in controlling the pollution trend in the studied area. Finally, by interpolation module and prediction of unknown values via Kriging techniques, the expansion plans were created. The extracted plans obviously illustrated the decrease in the levels of pollution indexes with the increase in distance from the given centers of pollution
Type of Study: Research |
Subject:
Ggeneral
Received: 2011/05/27 | Accepted: 2012/07/21 | Published: 2013/09/16
Received: 2011/05/27 | Accepted: 2012/07/21 | Published: 2013/09/16
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