PHYSICO-CHEMICAL CONDITIONS OF THE BHADRA RIVER AT KESHABPUR UPAZILA OF JASHORE, BANGLADESH (BSc Thesis)- Degree Awarded

PHYSICO-CHEMICAL CONDITIONS OF THE BHADRA RIVER AT KESHABPUR UPAZILA OF JASHORE, BANGLADESH, BSc. Thesis, (Degree Awarded)

ABSTRACT

The Bhadra River, a large freshwater wetland in Bangladesh's Jashore area, is an essential ecosystem that sustains a wealth of species and is a significant resource for the local population. This research examines the water quality of the Bhadra Rivers throughout the winter and monsoon seasons (During January 2024 to October 2024), focusing on key parameters like air temperature, water temperature, pH, EC, TDS, Turbidity, DO, BOD, Na⁺, K⁺, Ca²⁺, Mg²⁺, HCO₃^-, Cl^-, NO₃^-, PO₄^3- and SO₄^2-. The minimum and maximum value of this parameters are 25.3-26.7^oC, 24.9-26.6^oC, 7.45-7.78, 1547-1599µS/cm, 769-800 mg/l, 11.3-14.9 NTU, 4.44-5.5 mg/l, 1.5-2.1 mg/l, 12.36-14.99 mg/l, 5.01-6.73 mg/l, 14.21-18.32 mg/l, 12.32-15.23 mg/l, 72.16-75.31 mg/l, 20.14-26.14 mg/l, 0.68-0.76 mg/l, 4.87-6.77 mg/l and 13.12-15.94 mg/l in winter season respectively and  26.6-27.5^oC, 25.8-26.9^oC, 6.63-7.45, 1438-1540 µS/cm, 675-780 mg/l, 17.18-26.3 NTU, 4.9-5.9 mg/l, 2.8-3.4 mg/l, 9.62-11.40 mg/l, 4.96-5.33 mg/l, 10-16.48 mg/l, 10.12-13.66 mg/l, 54.9-69.7 mg/l, 17.73-25.51 mg/l, 0.426-0.560 mg/l, 3.43-4.37 mg/l and10.50-12.74 mg/l in monsoon season. The results reveal significant seasonal fluctuations in water quality, influenced by natural processes and anthropogenic activities such as agricultural runoff, industrial discharge, and urban effluents. The findings indicate that certain parameters exceed permissible limits set by national and international water quality standards, highlighting potential risks to aquatic life and human health. This study emphasizes the need for regular monitoring and effective management strategies to preserve the ecological integrity of the river and sustain its vital role in supporting local communities.

• Supervision