Spatial Distribution of Trace Metals in Groundwater: A Study Done in The Industrial Area of Visakhapatnam, Andhra Pradesh, India

Heavy metals though present at low level, are a matter of concern for determining the quality of the environment. The samples were analyzed by ICP-MS for the distribution of different heavy metals (Pb, As, Zn, Co. Ni, Cu, As, Se, Rb, Cs, Ti, Cr & V) present in trace amount. Hg was analyzed by CVAAS. The Physico-chemical analysis with reference to selective parameters was carried out. The groundwater samples were collected from four different sites around the industrial areas of Visakhapatnam. 22 metals were detected in trace amounts in the groundwater samples. The suitability of water as per complied with BIS 10500: 2012 was conformed. The concentration of mercury was analyzed in three forms. The total mercury (THg) was as observed in the range 0.76-3.54ng/L, organic mercury (OHg) in 0.13-1.03ng/L and dissolved mercury (DHg) in the range 0.02-2.35ng/L.