engleski

Heavy metal concentrations in tissues of wild boar of continental Croatia

In continental Croatia concentrations of heavy metals Cd, Hg and Pb were studied in the kidney and muscle tissues of free-living wild boar (n=169) from hunting grounds. The highest average metals levels measured in muscle/kidney were (mg/kg): Cd 0.005/4.58 ; Pb 0.15/0.195 ; Hg 0.012/0.15. Samples exceeding the permitted values (muscle/kidney mg/kg: Cd 0.05/1 ; Pb 0.1/0.5 ; Hg 0.03/0.1) in all regions studied was: for Cd 13.6% of muscle and 71.6% of kidney ; for Pb 13.6 % of muscle and 8.9 % of renal tissue and for Hg 19.5 % of kidney and 2.4 % of muscle. Significant differences in renal and muscle Cd, Pb and Hg concentrations between counties were determined. According to high percentages of unsuitable samples in muscle and kidney samples Vukovar- Srijem and Virovitica-Podravina regions were highly contaminated with Cd, Sisak-Moslavina and Virovitica-Podravina County with Pb and Brodsko- Posavina had highest Hg concentrations. High Cd, Pb and Hg levels in the kidney and muscle tissues of wild boar suggest a detailed investigation of physiological and environmental factors contributing to animal contamination and an intensified control of meat and elimination of organ from human nutrition.

Metal pollution; Cadmium; Lead; Mercury; Wild boars; Croatia

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