INTRODUCTION: IMAM KHOMEINI’S PORT IS LOCATED IN THE NORTH WEST END OF PERSIAN GULF WITH KHOR-E-MUSA’S CANAL. SHIPPING, VESSELS ACCIDENTS AND INLAND INDUSTRIAL POLLUTION CAN CONTAMINATE ARE POLLUTIVE FEATURE WHICH AFFECTED THE REAGION, HEAVY METALS POLLUTIONS ARE SO IMPORTANT, AMONG THESE FACTORS. HEAVY METALS ARE STABLE POLLUTANT AND THEY AREN, T DISINTEGRATABLE WITH BIOLOGICAL ACTIVITIES, AND ALSO THAT THEY CAN ACCUMULAT IN AQUATIC CREATURES. BIVALVES ARE THE MOST IMPORTANT TO USE AS ENVIRONMENTAL MONITORING AS POLLUTION INDICATORS.