
The Uppanar estuary runs behind the SIPCOT complex which is located at Cuddalore. The present study was conceded out to conclude the heavy metals in sediments samples Uppanar Estuary, Cuddalore, Southeast coast of India. The data obtained during period January to December 2012 reveled that six heavy metals of two stations. The minimum and maximum values of heavy metal ranges in sediment Iron, Copper Zinc, Cadmium, Chromium and Nickel were 1.88 to 6.48 and 1.24 to 6.32; 0.35 to 1.37 and 0.25 to 1.32; 0.35 to 1.25 and 0.31 to 1.12; 0.13 to 0.52 and 0.12 to 0.36; 0.13 to 0.68 and 0.12 to 0.53 and 0.11 to 0.69 and 0.09 to 0.53 at the two stations with minimum and maximum mean values of 4.60±1.78 (S1) and 4.31±1.87 (S2); 0.95±0.38 (S1) and 0.81±0.37 (S2); 0.74±0.28 (S1) and 0.66±0.25 (S2); 0.32±0.12 (S1) and 0.27±0.09 (S2); 0.35±0.20 (S1) and 0.28±0.18 (S2); 0.33±0.20 (S1) and 0.26±0.14 (S2) values was respectively. The results indicate that industrial growth has affected the aquatic environments and normal monitoring will help to adopt severe pollution control measures for better managing of the aquatic area.