Short Notes on Geographical Account of River Pollution
i. Rapidly growing domestic, municipal, industrial and agricultural demand for water from rivers naturally affects the quality of water.
ii. Today more and more water is drained out of the rivers. It has resulted in reducing their volume.
iii. A heavy load of untreated sewage and industrial effluents is discharged into the rivers.
a. This affects not only the quality of water but also the self-cleansing capacity of the river. For example, if there is an adequate stream flow, the Ganga water is able to dilute and assimilate pollution loads of large cities within 20 kms.
b. Increasing urbanisation and industrialisation do not allow it to happen.
c. The result is that the pollution level of many rivers is rising.
iv. Concern over rising pollution of our rivers has led to the launching of various action plans to clean the rivers.