Heavy metal contamination of paddy soils and riceud(Oryza sativa L.) from Kočani Field (Macedonia)

摘要

This research focuses on the heavy metaludcontamination of the paddy soils and rice fromudKočani Field (eastern Macedonia) resulting fromudirrigation by riverine water impacted by past andudpresent base-metal mining activities and acid mineuddrainage. Very high concentrations of As, Cd, Cu, Pbudand Zn were found in the paddy soils (47.6, 6.4, 99,ud983 and 1,245 μg g-1) and the rice (0.53, 0.31, 5.8,ud0.5 and 67 μg g-1) in the western part of KočaniudField, close to the Zletovska River, which drains theudmining facilities of the Pb–Zn mine in Zletovo. Inudterms of health risk, the observed highest concentrationsudof these elements in the rice could have anudeffect on human health and should be the subject ofudfurther investigations.