Resistivity Investigation for Mapping Polluted Areas In and Around Hyderabad, India

Geoelectrical, Physiographic and Hydrogeochemical investigations were carried out along and across the Musi River covering an area of 113.75 Km2 stretching from Amberpet to Nallachervu to know the ground water pollution potential due to discharge of sewage in and around Musi. 35 Vertical Electrical Soundings were conducted on 6 Profiles across the Musi. Topographic levels and water levels were also collected near the VES points.30 Ground and Surface water samples were collected to know the concentrations of various chemical parameters. Using the data, contour maps of the chemical parameters and physical parameters has been prepared. Moreover geoelectrical cross sections along and across the Musi are studied. When we face down stream of Musi in general it is found that the North side of the Musi is at lower elevation so also the aquifers when compared to South side. In view of the continuity of the aquifers from high elevated areas to low elevated areas the ground water is moving towards low lying areas. The high concentrations of TDS and other major chemical parameters are found at low-lying areas that are reflected in the resistivity contour maps.