Correlation of COD and BOD of Damodar River Water Samples Before and After Meeting of Mining Effluents Around Khas Karnpura Coalfields, Jharkhand: Assessing the correlation between BOD and COD in Damodar River water samples

Abstract

The COD and BOD are important parameter for indication of pollution. The correlation ofBOD and COD of Damodar River water has been assessed seasonally in the year 2014 before and aftermeeting of mining effluents from station (1 to 6). The variable  and  shows 5.20 and 0.012 beforemeeting of mining effluents and 0.28 and 0.068 after meeting of mining effluents respectively. It hasbeen observed significant correlation between BOD and COD.A straight line equation between BOD and COD are observed for Damodar River water before and aftermeeting mining effluents.BOD = + (COD)It has been found that BOD is function of COD.