Volume 21, Issue 3 (Fall 2017)                   jwss 2017, 21(3): 55-68 | Back to browse issues page

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Tayebi M, Naderi M, Mohammadi J. Spatial Distribution of Some Heavy Metals in Different Soil Particle Size Fractions in Kafe Moor, Kerman Province, Iran. jwss 2017; 21 (3) :55-68
URL: http://jstnar.iut.ac.ir/article-1-3197-en.html
1. Dept. of Soil Sci., Shahrekord Univ., Shahrekord, Iran. , mahtayebi@yahoo.com
Abstract:   (6929 Views)

The aim of this work was to study distribution of some heavy metals in different soil particle-size fractions and to assess their spatial distribution. The study was carried out in Kafe Moor (Kerman, Iran) where the Gol-Gohar Iron Mine is located. One hundred twenty composite soil samples were randomly collected and transferred to the laboratory in bags. After air-drying, the samples were fractionated into six classes including 2- 0.5, 0.5-0.25, 0.25-0.125, 0.125- 0.075, 0.075-0.05 and <0.05 mm. Elemental concentrations (Fe, Mn, Cu, Zn, Pb and Ni) were determined using acid digestion method (HNO3, 4.0 N) and an atomic absorption spectrophotometer in each class. Ordinary Kriging technique was used for predicting spatial distribution of heavy metals. The results showed that content of metals in soil increased with decreasing particle size. The results also showed that the concentration of Fe, Mn, Cu, Zn, Pb and Ni in <0.05 mm size fraction were 2.13, 1.70, 4.79,2.43, 1.42, and 3.47 times higher than in 2-0.05 mm size fraction, respectively. In addition, mapping the concentrations of heavy metals with kiriging showed that metals pollution decreased with increasing distance from mines area.

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Type of Study: Research | Subject: Ggeneral
Received: 2016/01/13 | Accepted: 2016/11/12 | Published: 2017/11/8

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