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Analysis of Physic-Chemical Parameters for Pollution and Water Quality Status of Cherlapally Lake, Hyderabad, AP, India

Author Affiliations

  • 1 University College of Science, Osmania University, Hyderabad, AP-500007, INDIA

Int. Res. J. Environment Sci., Volume 3, Issue (7), Pages 53-57, July,22 (2014)


Experiments were conducted to analyse the physic-chemical parameters in water samples from Cherlapally Lake, Cherlapally village, Ranga Reddy district, A.P. India. The lake was constructed in the year 1970s. The water flows all time of the year and the lake appears like full-tank. In the recent 15 years Cherlapally Lake receiving waste water (drainage) coming from Kapra Village and Kushaiguda areas in addition to heavy metal pollution from heavy metal and other industries. The main aim of this study is to assess the pollution status and quality of water of this lake. Water samples were collected from three sites of the lake that are in-let of the lake (site-1), out-let of the lake (site-2), middle of the lake (site-3), and analysed for various Physical-Chemical parameters. The outcome of the results is showed as: Temperature from 27.1C to 28.2C. pH ranged from 7.42 to 7.68, Electrical conductivity from 1419 to 1709 S/cm, Total dissolved solids from 971 to 1162 mg/L; alkalinity ranged from 500 to 675 mg/L; Total hardness [CaCo3] from 306 to 380 mg/L; Acidity from 0.1 to 0.2 mg/L; COD (Chemical Oxygen Demand) from 232 to 1360 mg/L; BOD (Biological Oxygen Demand) from 58 to 380 mg/L; Nitrate [No-3] from 8 to 12 mg/L; Chloride[Cl-] from 224 to 276 mg / L; Sulphate [So4-] from 191 to 239 mg/L; Phosphate [Po4-] from 0.11 to 0.15 mg/L respectively. Parameters like BOD, COD from Cherlapally Lake were exceeded BIS and WHO standards. Because of these reason the Lake can be regarded as polluted Lake.


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