Bioaccumulation of metals in human blood in industrially contaminated area

Heavy metals were analyzed in different foods crops, milk, meat and blood samples collected from different age group subjects such as children (1–12 years), adolescent (12–18 years), adults (18–45 years) and old age (above 45 and 55 years for males and females, respectively) from polluted and relatively less polluted areas. The results revealed that the consumption of contaminated food crops, meat and milk have significantly increased the concentrations of selected metals in the human blood. Cu, Zn and Mn concentrations were significantly higher (p < 0.05) in the blood samples collected from the polluted area as compared to control area. Old people had accumulated high concentrations of metals as compared to the younger ones within the same area. Males accumulated higher concentrations of metals as compared to females.