SUMAIYA KHATIB AND NANDITA SINGH
Abstract
Lakes are of great importance both from the natural and economic point of view. Lake water is a source of drinking and domestic water supply for people living in and around the area. The present study was conducted to assess the organic pollution indicators like BOD, COD and DO. The sampling of water was based on human and aquatic activities around the lake. Water from five sampling stations of Varhala Lake was monitored for seasonal variations from May 2011 to April 2012. The BOD was positively correlated with COD of 0.609, as both are the products of oxidation. The correlation between DO and BOD, gave a negative relationship of 0.517 between two variables.