ASSESSMENT OF SOLANI RIVER (ROORKEE) QUALITY_ UNDER .URBAN INFLUENCE

Abstract

Water is a part of environmental system and it is one of the abundantly available substances in nature. It is an essential constituent of all animal and vegetable matter and forms about 75% of the matter of earth's crust. With respect to other forms of water. rain water is considered to be the purest form of naturally occurring water. The rain water, however, is associated with dissolved gases such as CO2, SO4 NI-I3 etc. now-a-days. good quality water is becoming inadequate even for the normal living and is getting polluted due to sewage and industrial wastes, agricultural wastes etc. Now-a-days, continually degrading quality of the environment all over the world has become a matter of serious concern. The three important things emerged after numerous world level debates about environment are, the environment is a global property and hence warrants care and maintenance at global level, the science and technology will have to be fed as an input to a right model of development in future and then it will have to play much more important role in restoring and healing the earth's present environmental status and the need of hour is the application of cheaper economic and feasible technology as for as monitoring and according planning for restoration measures are concerned. Water contamination (pollution) is defined as the change in the physio-chemical and micro biological characteristics. Surface run-off gets impurities of various kinds from ground with which it comes in to contact.