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River pollution

Paper type: Essay
Pages: 2 (473 words)
Categories: Environment, Nature, Pollution, River, Water, Water Pollution
Downloads: 27
Views: 733

The water in most of our rivers is highly polluted. The pollution of river water is caused by the dumping of untreated sewage and industrial wastes into it. For example, the river Ganga which flows for over 2500 kilometres from Gangotri in the Himalayas to Ganga Sagar in the Bay of Bengal is being turned into a dirty water drain by the discharge of untreated sewage and industrial wastes emanating from more than a hundred towns and cities which lie along its way.

In addition to sewage and industrial wastes, the pollution of river Ganga is also caused by other human activities like bathing, washing of clothes, immersion of ashes of the dead and dumping of unburnt corpses in its water. The industries also discharge chemical effluents into the river water. The toxicity of these chemical effluents kills the fish in many parts of the river.

The contamination of river water can be usually found from two factors: (i) the presence of coliform bacteria in river water, and (ii) measurement of pH of river water.

Coliform is a group of bacteria found in human intestines. The presence of coliform in the river water indicates its contamination by disease-causing micro-organisms.

This is because though coliform itself is harmless but its presence in river water indicates that other, more harmful, intestinal bacteria might also be present. The pH of river water is measured by using universal indicator paper. If the pH of river water is found to be below 7, then the river water will be acidic and hence polluted. A multicrore ‘Ganga Action Plan’ (GAP) project was launched in 1985 to clean the river Ganga and make its water pollution free.

Wells and tube-wells (bore-wells) are yet another source of water. Some of the rainwater which falls on earth seeps through the soil and goes down under the surface of the earth. Ultimately this water is stopped by some hard rocks and collects there. This underground water is taken out by digging a ‘well’ into the ground. This is called well water.

Such wells are a common sight in village areas. The deep tube- wells called ‘bore-wells’ are also dug into the earth which are much deeper than the ordinary wells and their water is drawn out by using water pumps. This water is used for the irrigation of crops and for drinking purposes.

When too much water is pumped out through deep tube-wells then the water table (level of water below the earth’s surface) gets lowered too much. This lowering of water table decreases the amount of available underground water.

In order to maintain the water table at a proper depth, it is necessary to ensure better percolation of rainwater into the soil. A scheme called ‘rainwater harvesting’ is recommended to stop flowing rainwater and make it percolate into the soil more efficiently.

Cite this essay

River pollution. (2016, May 27). Retrieved from https://studymoose.com/river-pollution-essay

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