| The water samples for physicochemical parameters were collected from holy river Ramganga, Bareilly, UP India for two years from the three study sites during 2020-21 and 2021-22. The observations were done on different physicochemical characteristics like air temperature, water temperature, pH, transparency, total dissolved solids, total suspended solids, dissolved oxygen, free CO2, carbonate, bicarbonate, chloride, calcium, magnesium and total hardness. The value of pH was highest in summer while total dissolved solids and total suspended solids of river water reported maximum during September. However, in winter the dissolved oxygen and free carbon dioxide have their highest values. A positive correlation was observed between air and water temperature (0.833), total dissolved solids and total suspended solids (0.947), dissolved oxygen and bicarbonate (0.925) and dissolved oxygen and magnesium (0.912) . Positive correlations were expressed between bicarbonate and magnesium (0.881). The correlation between dissolved oxygen and calcium (0.972) and dissolved and chloride (0.915) were also reported during the study period. The results indicated that the mean of most physicochemical parameters were within the permissible limit of WHO and BIS standards while some parameters like dissolved oxygen, calcium and magnesium were found to be higher.
Keywords: Physicochemical characteristics, Dissolved oxygen, Ramganga River, Total hardness and Chloride.
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