The Biobrio 12(1 & 2), 2025

Seasonal Dynamics of Physicochemical Parameters in Puraini Pokhar, Bihar: Implications for Freshwater Quality and Ecosystem Health

Nitisha Nayan & Arun Kumar

ABSTRACT:

Puraini Pokhar, a perennial freshwater pond in Madhepura, Bihar, India, holds ecological, economic, and cultural significance for the surrounding communities. This study was conducted to assess the physicochemical properties of the pond water across three seasons-pre-monsoon, monsoon, and post-monsoon-to evaluate its ecological status and suitability for human and aquatic life. Parameters analyzed included temperature, pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), turbidity, total dissolved solids (TDS), electrical conductivity (EC), nitrate, and phosphate concentrations. Results revealed seasonal fluctuations, with some parameters exceeding BIS permissible limits, particularly during the pre-monsoon period. These variations are attributed to anthropogenic activities such as agricultural runoff, domestic discharge, and solid waste dumping. The findings underscore the urgent need for regular monitoring and implementation of sustainable pond management practices.

Keywords:    

Physicochemical parameters, Puraini Pokhar, Anthropogenic impact, Environmental monitoring, Sustainable pond management, Agricultural runoff, Ecological degradation

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