Characterization of Heavy Metal Fractions in Agricultural Soils by Sequential Extraction Procedure: The Relationship Between Soil Properties and Heavy Metal Fractions |
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| Authors: | Ali Sungur Erkan Yilmaz Selehattin Yilmaz Hasan Ozcan |
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| Institution: | 1. ?anakkale Onsekiz Mart University, Faculty of Agriculture, Department of Soil Science and Plant Nutrition, ?anakkale, Turkey;2. Erciyes University, Faculty of Sciences, Department of Chemistry, Kayseri, Turkey;3. ?anakkale Onsekiz Mart University, Faculty of Art and Science, Department of Chemistry, ?anakkale, Turkey |
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| Abstract: | The present research was conducted to determine heavy metals in agricultural soils from Çanakkale, Turkey, using a sequential extraction procedure (acid soluble, reducible, oxidizable, and residual) as proposed by the Community Bureau of Reference (BCR) of the European Commission. Soil samples were taken from 12 different cultivated sites and analyzed for Cd, Co, Cr, Cu, Mn, Ni, Pb, and Zn concentrations. The results revealed an order of Mn > Cd > Pb > Co > Ni > Cu > Zn > Cr for the heavy metals based on the sum of the first three fractions (acid soluble + reducible + oxidizable). The relationships between soil properties and each metal fraction were identified through Pearsons's correlation analysis. Hierarchical cluster analysis was performed to determine the behaviors and similarities of metals in each fraction. While Mn, Pb, and Zn exhibited subjective behaviors in the acid-soluble fraction, Cd, Co, Cu, Cr, and Ni exhibited similar behaviors with each other. |
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| Keywords: | Agricultural soil heavy metal BCR sequential extraction |
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