Abstract
Newaj river is the ‘Life Line’ for the city of Rajgarh as it is the major source of water supply for the entire city. The study represents the results of physico-chemical parameters such as pH, Dissolved Oxygen, Biological Oxygen Demand and Chemical Oxygen Demand during different seasons from Nov. 2008 to Oct. 2009. It was observed that BOD and COD increased regularly but DO decreased in summer season except reference water sampling station. BOD, COD, DO values have deviated from the standard values. These values show that river water can directly be used for irrigation and for drinking purpose, it needs treatment.
Highlights
The Newaj river is the left bank tributary of the river Parwan which is a right bank principal tributary of Kalisindh River
The present study aims to assess the Newaj river water quality at different sampling stations with most critical parameters, i.e. pH, DO, BOD, COD
The dissolved oxygen is determined by Winkeler's method [APHA 1989]3 with azide modification, BOD is determined by BOD incubation method and COD by potassium dichromate open reflux condenser method
Summary
The Newaj river is the left bank tributary of the river Parwan which is a right bank principal tributary of Kalisindh River. In the present years due to the growth in population, urbanization, settlement of brick manufacturing plant, deforestation etc. The river is contaminated regularly and the maintenance of the quality of river water will be a severe problem in the years to come. The present study aims to assess the Newaj river water quality at different sampling stations with most critical parameters, i.e. pH, DO, BOD, COD.
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