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SPATIAL DISTRIBUTION OF HEAVY METAL CONCENTRATION IN GROUNDWATER IN AND AROUND PALK STRAIT SEA SHORE AREA USING GIS TECHNIQUES

A.Balakrishnan, Dr.A.Ramu and A.Murugesan

metal pollution is one of the common and important problem of water bodies and responsible for causing serious health effects to humans and animals. The aim of present study was to assess the heavy metal concentration in groundwater in Palk Strait sea shore area during the post –monsoon season. Heavy metals like Arsenic Heavy (As), Manganese (Mn), Zinc (Zn), Cadmium (Cd), Chromium (Cr), Copper (Cu), Mercury (Hg) and Lead (Pb) present in ground water were determined by Atomic absorption spectrometer. The concentrations of heavy metals were compared with drinking water standard prescribed by WHO, BIS, ICMR and FAO. The spatial distributions of heavy metal in ground water were taken to Geological Information System (GIS). In Arc GIS, spatial distribution maps were prepared for the above analyzed heavy metals.