Characterization of heavy metals contents in different plant foods from polluted sites and their impact in food chain

摘要

Environmental pollution with heavy metals is a global problem that concerns every part of the planet Earth. From this global environmental pollution framework doesn’t deviate neither Macedonia nor China. Many studies have been conducted in order to monitor the content of heavy metals in different parts of the biosphere of the two countries. The significantly worrying data were obtained in both cases; indicates the presence of higher content of heavy metals (Cd, Cu, Cr, Fe, Hg, Ni, Pb, Tl and Zn) in soils in Macedonia (Stafilov et al., 2014) and China (Wang et al., 2003). Furthermore, special importance is given on the bioavailability of heavy metals in soil and their bioaccumulation of different plant species used in the human dietary. Therefore, the main purpose of this project is, based on the predetermined data on contaminated areas to: 1) determine the bioavailability of heavy metals in soil 2) to determine their bioaccumulation in different types of plant foods that are planted in these areas and 3) determine their impact in the food chain. When heavy metals entering the food chain, causes serious consequences and health disorders at human population (World Health Organization, 1996). Notably, for any healthy society is a healthy human population and controlling the food quality is one of the most significant challenges as a part of the environmental protection.