Seasonal Variations of Some Physico-Chemical Parameters of Ramsagar Dighi, Dinajpur, Bangladesh

Physico-chemical parameters of water in Ramsagar Dighi, Dinajpur were studied during the period of May 2022 to January 2023 in detail. Samples were collected from fourteen sampling points of the study area and were analyzed for the important water quality parameters, e.g. total dissolve solids (TDS), temperature, turbidity, electric conductivity (EC), dissolved oxygen (DO), biochemical oxygen demand (BOD), pH, arsenic, iron, chlorine, nitrate and salinity etc. These parameters indicate the level of quality of water for drinking and other domestic purposes. The parameters then were compared to Bangladesh standards. The study found that all physico-chemical parameter values varied significantly for all sampling sites between summer and monsoon seasons. The water quality were comparatively moderate in all season. But nitrate condition exceeded the standard value in all seasons.