Study and interpretation of physico-chemical characteristic of lake water quality in Nagpur city (India).

Abstract

This paper is intended to be a study concerning lake water pollution in Nagpur city, Maharashtra (India). Regional and seasonal variation of some physico-chemical parameters such as nutrients salts, total nitrogen and total phosphorous, in addition, temperature, pH, conductivity, dissolved oxygen (D0), chemical oxygen demand(COD), biological oxygen demand (BOD) and suspended solid (SS) were determined for the estimation of pollution load during the period from January to December 2008. The sampling points were selected on the basis of their importance. A monitoring network was set at representative site in the whole studied area and water samples were taken on a regular basis for laboratory analysis. Important variations have occurred in the investigated area as a result of human activity and discharge of waste water. During present study, Ambazari, Gandhisagar and Futala Lake water showed significant pollution as compared to Gorewada Lake. This is attributable to pollution due to human activities such as immersion of idols of God and Goddess during festival season, surface runoff resulting from rainfall, washing activities and sewage (poor) around Lake. All the calculated water quality parameters in studied lakes showed fair water quality rating in autumn season which then change to medium in rainy season and higher during summer season. The situation is alarming and degradation is in continuous process, therefore immediate action is required for its better management.