Rispana River- Responsible Factors of Water Pollution in Dehradun Valley

The River that flows into the city of Dehradun is Rispana which furthermoves and joins the river Suswa which is the tributary of the Ganges. Rispana flows between the city of Dehradun and the pollution of the city flows through this river and reaches the Ganges. This river has come in the middle of the city due to increasing population and urbanization whereas earlier this river used to determine the eastern boundary of Dehradun city. Water is needed for the maintenance of life of plants and animals, for navigation, hydroelectric power and for disposal of sewage. For survival, man requires 1 kg of food, drink 2litres of water and 22 kg air to breathe daily. Supplies for fresh water also provide the aquatic organisms with dissolved oxygen and some essential minerals and nutrient making it indeed the most vital element for life. That is why most of our villages, towns and cities sprang up in the past near places where plentiful water was available in the form of lakes and rivers. History tells us that human civilizations perished or migrated to better locations in the absence or scarcity of water. In primitive ages the man used to live near the river. The greatest use of water was for irrigation and agricultural pursuits, while only the people consumed a small amount. The use of water for drinking and cooling was limited to the amount that people could easily take from the wells or the stream in their vessels. The management and conservation of water resources have become important issues. Water is by far the most important natural resource and an environmental medium, which is most susceptible topollution. The most important contributors to pollution of water are sewage, oil, industrial and agricultural wastes. These can be divided as degradable and non-degradable. Degradabble pollutants, mostly domestic sewage, can be rapidly decomposed by natural process. This research paper presenting the actual condition related to water pollution and responsible pollutants in Dehradun Valley.