Assessment of the Chemical Characteristics of River Serlui-A in Aizawl, Mizoram, North East, India

Abstract

The present study was carried out to assess the chemical characteristics of river Serlui-A in Aizawl, Mizoram, at monthly intervals for a period of two years, i.e. from October 2016 to September 2018. The results are presented on seasonal basis i.e. pre-monsoon (February-May), monsoon (June-September) and post-monsoon (October-January) seasons. For detailed investigation, 4 sampling sites were selected and water samples were collected at monthly interval. The findings on various water quality attributes with value range in parentheses are as- pH (6.1-7.9), dissolved oxygen (5 to 7.9 mgL-1),biological oxygen demand (1.1 to 3.8 mgL-1), chloride (5.2 to 47.5 CaCO3 mgL -1), total alkalinity (25.6 to 186 mgL -1) and total hardness (18 to 181 CaCO3 mgL-1). The findings were compared with the standards given by several scientific agencies for potable water . The pH, DO, chloride, total alkalinity and total hardness were within the prescribed limit, however, BOD was beyond the limit. The data were subjected to correlation coefficient among different variables using SPSS version 16.0 software to check the validity and significance of the result.