Наличие на олово и кадмий във вътрешни органи на свине от различни региони на Северна България

Abstract

The study reflected the contamination of pigs with Cd and Pb from different regoins of North bulgaria depending on a putative pollution of forage and environment with heavy metals.
Differences were found in the contamination of internal organs - liver and kidney, in relation to the industrial pollution of the region with PB and Cd, while as a comparison the contamination of animals from the region of Manole in South Bulgaria. Clear seasonal dynamics in contamination of pigs was observed and despite the different levels of heavy metal concentrations in liver and kidney by regions, the content of Pb and Cd was below the permitted levels for Bulgaria, according to normative documents in action.