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Agents Polluting Ground Water Ground water is highly susceptible to contamination because of human activity. The leaching of surface materials also pollutes the ground water. Due to urbanisation and industrialisation large volumes of solid wastes and sewerage are discharged on the land without any treatment. They seep into ground, leading to pollution. This is indicated mostly by the high concentration of EC, Nitrates, and Chlorides in the ground water. A study conducted by CGWB in Hyderabad revealed that, the bulk drug producing and chemical industries located in and around L B Nagar, Uppal, Bolaram, Jeedimetla, Sanathnagar and Balanagar areas are causing adverse effect on ground water quality. The colour and chemical constituents of ground water from the surrounding areas of the chemical industr ies is generally beyond desirable limits. In a similar study conducted by CGWB in Visakhapatnam it was found that the industrial effluents released on ground have the greatest potential of polluting ground water. The study shows that the effluents travel downward till they reach water table and move laterally. Due to heavy rainfall the matter is further washed down to reach the water table. |
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