Document Type : Primary Research paper
Department of Environmental Science, Madhyanchal Professional University, Ratibad- Bhopal (M.P), India
Department of Environmental Science, Govt. Degree College, Ganderbal, Kashmir (J&K), India
The current study was aimed to evaluate the Physico-chemical characteristics of Manasbal Lake. Water quality data collected over a two-year period from six sites was examined for 15 parameters. The ANOVA revealed that water temperature (F= 2.90, P < 0.05), electrical conductivity (F=12.5646, <0.05), DO (F= 7.189008, P < 0.05), BOD (F= 36.39959, P < 0.05), COD (F= 22.23, < 0.05), total alkalinity (F= 4.08, < 0.05), Calcium (F= 14.66, P < 0.05), Magnesium (F= 13.17, P < 0.05), nitrate-nitrogen (F= 8.29, P < 0.05), total phosphorus (F= 16.36, P < 0.05), ammonical nitrogen (F= 13.58119, P < 0.05), total suspended solids (F= 11.79, P < 0.05) varied significantly within the sites, as well as among the seasons, whereas transparency (F= 0.048, P <0.05), pH (F= 2.45, P <0.05), and chloride (F= 2.9, P <0.05) showed no significant variation among the seasons but varied significantly within the sites. During the study the Physico-chemical characteristics revealed that Gratabal (S2), Kondabal (S1) and Jarokabal (S6) were the most disturbed sites than others due to influx of different kinds of waste materials from human habitation. According to the study, the primary sources of water quality deterioration in the investigated lake were untreated domestic wastewaters, agricultural runoff, solid waste, human and animal waste, and silt load from the nearby population and from Laar-Kuhl - a meager water route to the lake.