Geochemical Characteristics and Environmental Assessment of Paddy Fields: A Case Study of Kočani Field (Republic of Macedonia)

Rogan Šmuc, Nastja and Dolenec, Tadej and Serafimovski, Todor and Tasev, Goran and Dolenec, Matej (2011) Geochemical Characteristics and Environmental Assessment of Paddy Fields: A Case Study of Kočani Field (Republic of Macedonia). In: Advances in Environmental Research. Nova Science Publishers, Inc., New York, New York, USA, pp. 39-72. ISBN 978-1-61728-774-9

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Abstract

Contamination of soils with heavy metals is widespread and induces a long-term risk to ecosystem health. This research focuses on the heavy metal contamination of the paddy soils from Kocani Field (Republic of Macedonia) originating from irrigation of the paddy fields by riverine water impacted by past and present base-metal mining activities and acid mine drainage.
The distribution and mobility characteristics of heavy metals (Ag, As, Cd, Cu, Mo, Ni, Pb, Sb and Zn) in Kocani paddy soil samples from Kocani Field were evaluated. Very high concentrations of Ag, As, Cd, Cu, Mo, Ni, Pb, Sb and Zn were found in the paddy soils samples in the vicinity of the Zletovska River (western part of Kocani Field). The river drains the acid mine waters and tailing effluents from the Pb-Zn mine in Zletovo and it is used for irrigation of the surrounding paddy fields. The detected total concentrations of these metals are far above the threshold values considered to be phytotoxically excessive for the surface soil. Heavy metal contamination of Kocani paddy soils was also assessed using geoaccumulation index, contamination factor and contamination degree. The results of the applied indexs confirmed a very high contamination status for Kocani paddy soils. The mobility potential of the investigated heavy metals in paddy soil samples decreases in the following order: Cd > Mo > Sb > Zn > Cu > As > Pb > Ni > Ag.

Item Type:	Book Section
Subjects:	Natural sciences > Earth and related environmental sciences
Divisions:	Faculty of Natural and Technical Sciences
Depositing User:	Goran Tasev
Date Deposited:	22 Nov 2012 13:39
Last Modified:	22 Nov 2012 13:39
URI:	https://eprints.ugd.edu.mk/id/eprint/1721

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