Our earths crust is the ultimate source of all metallic elements present in the ecosystem. Globally there are 35 metals that concern us because of residential or occupational exposure; 23 of these are the heavy metals. In this study, the level of heavy metals pollution in poultry chicken (Gallus domesticus) at Karachi, Hyderabad and Thatta were investigated during the year 2007-9. A total 200 random poultry organs (liver, brain and heart) of same aged groups of chickens were collected from poultry shops of 6 selected locations, and 4 heavy metals Cd, Ni, Cu and Pb were analyzed. Based on...