Evaluation of heavy metal pollution from coastal water of Nizampatnam Bay and Lankevanidibba, East Coast of India

Thirty locations in the Coastal area of Nizampatnam Bay and Lankevanidibba were studied for heavy metals and their concentrations in the Coastal water. The samples were analysed for Cd, Co, Cr, Fe,Mn,Pb, and Zn to evaluate metal concentrations in coastal water. The concentration of metals Cd, Co, Cr, Fe, Mn, Pb, and Znwere determined by ICP-OES, in coastal water. The concentration of Cd (Cadmium) is demonstrating elevated contamination in all the sampling sites. The coastal wateris polluted by heavy metals like,Mn and Zn. It acts as a sink for the multitude of anthropogenic sources in the study area.The metals were identified in allcoastal water samples were proxies of pollution,Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-OES-Perki Elmer-Optima 4300 DV) is an analytical technique used for elemental determinations and instrument was utilized for water analysis. Based on the order of accumulation the metal content was more and as a result pollution was more in the coastal water due to release of industrial wastes and anthropogenic activities.The comparison of Premonsoon and post monsoon is given. Premonsoon:Pb (16.049 mu g/L), Zn (7.998 mu g/L), Mn (15.976 mu g/L), Ni (8.827 mu g/L), Fe (10.028 mu g/L), Cd (9.221 mu g/L), Cu (11.744 mu g/L), Cr (10.486 mu g/L), post monsoon: Pb (15.952 mu g/L), Zn (8.084 mu g/L), Mn (20.437 mu g/L), Ni (8.583 mu g/L), Fe (0.763 mu g/L), Cd (4.837 mu g/L), Cu (12.116 mu g/L), Cr (8.008 mu g/L).

Automated summary

Thirty locations in the Coastal area of Nizampatnam Bay and Lankevanidibba were studied for heavy metals and their concentrations in the Coastal water. Cd, Co, Cr, Fe, Mn, Pb, and Zn were found to be the main pollutants, with Cd showing elevated contamination in all sampling sites. The accumulation of metals in coastal water was higher, indicating increased pollution due to industrial waste discharge and anthropogenic activities.