Water quality and trophic status of Raipur reservoir in Gwalior, Madhya Pradesh

Meenakshi Saxena, D.N. Saksena


This study is aimed to assess water quality and trophic status of Raipur reservoir. The range of various parameters of reservoir water (ambient temperature-20.35-41.050C, water temperature-14.83-31.30C, transparency-29.46-111.5 cm, turbidity-3.85-15.23NTU, water depth-1.12-4.42 m, colour-transparent-dark brown, electrical conductivity- 288.40-421.50 µScm-1, total dissolved solids-179.64-273.58 mg L-1, total suspended solids-84.30-113.95 mg L-1, total solids-263.91-385.04 mg L-1, pH-7.93-9.05,  dissolved oxygen-7.49-9.63 mg L-1, free carbon dioxide-nil-9.30 mg L-1, total alkalinity-49.30-105.50 mg L-1, total hardness-102.0-167.75 mg L-1, chlorides-24.10-85.23 mg L-1, sulphates-3.70-12.60 mg L-1, nitrate-nitrogen-0.250-0.870 mg L-1, nitrite-nitrogen-0.033-0.089 mg L-1, inorganic phosphorus-0.029-0.086 mg L-1, silicates-2.70-12.78 mg L-1, ammonia-0.43-1.56 mg L-1, sulphides-0.695-1.44 mg L-1, biochemical oxygen demand-2.65-6.94 mg L-1, chemical oxygen demand-58.7-120.5 mg L-1, calcium-26.85-44.67 mg L-1, magnesium-8.46-18.85 mg L-1, sodium-8.55-16.43 mg L-1 and potassium-4.25-7.53 mg L-1) exhibit monthly as well as seasonal fluctuations. The nutrients including calcium, silicates, sulphates, phosphates, nitrates and potassium are in sufficient quantities for the growth of aquatic plants and animals in the reservoir. The above study indicated that the Raipur reservoir is under category of meso-eutrophic water body.

Keywords: Physico-chemical parameters, Trophic status and Raipur reservoir

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ISSN (Paper)2224-3186 ISSN (Online)2225-0921

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