Abstract

ASSESSMENT OF WATER QUALITY OF UPPER LAKE BHOPAL.

Zahida Bano* and Dr. Rajendra Chuahan

Abstract

Limnological studies of Upper Lake Bhopal were carried out during November 2010 to October 2012. The present study deals with physico –chemical parameters such as, total dissolved solids, total hardness, calcium hardness, magnesium hardness, chloride, nitrate nitrogen and phosphate. The minimum and maximum range of physico – chemical parameters were as, total dissolved solids 105-170 mg/l from site 2 in monsoon season and from site 2 in summer season respectively, total hardness 61-98 mg/l from site 2 in winter season and from site 2 in summer season respectively, minimum calcium hardness 44mg/l from site 2 in monsoon season and maximum 76.4mg/l from site 1in summer season, minimum magnesium hardness 2.9 mg/l from site 1 in post- monsoon season and maximum 8.8 mg/l from site 1in summer season, minimum chloride 15mg/l from site 2 in winter season and maximum 41 mg/l from site 2 in winter season, minimum nitrate nitrogen 0.41μg/l from site 1 in summer season and maximum 1.14μg/l from site 2 in monsoon season and minimum phosphate 0.16μg/l from site 1 in post- monsoon season and maximum 0.30μg/l from site 2 in monsoon season. It was concluded that the anthropogenic pressure, domestic sewage and season is mainly responsible for the variation of physico-chemical parameter of Upper Lake.

Keywords: Pollution, surface run-off, physico –chemical parameter, Upper lake.