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HYDROCHEMICAL CHARACTERISTICS OF WATER IN DALVOY LAKE, MYSORE CITY

HYDROCHEMICAL CHARACTERISTICS OF WATER IN DALVOY LAKE, MYSORE CITY. Mahesha * & A. Balasubramanian ** * Research Scholar, Department of Environmental Science, University of Mysore, Manasagangothri,Mysore-570 006. E-mail: mahekalasa@yahoo.co.in

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HYDROCHEMICAL CHARACTERISTICS OF WATER IN DALVOY LAKE, MYSORE CITY

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  1. HYDROCHEMICAL CHARACTERISTICS OF WATER IN DALVOY LAKE, MYSORE CITY Mahesha* & A. Balasubramanian** *Research Scholar, Department of Environmental Science, University of Mysore, Manasagangothri,Mysore-570 006. E-mail: mahekalasa@yahoo.co.in **Professor and Director, EMMRC, University of Mysore, Manasagangothri, Mysore-570006. E-mail:emmrc1@gmail.com

  2. CONTENTS • INTRODUCTION • STUDY AREA • MATERIAL AND METHODS • RESULTS • CONCLUSION

  3. INTRODUCTION • Aquatic ecosystem performs numerous functions. • Lakes form an important fresh water ecosystem. • Anthropogenic activities have altered the ecosystem. • Dynamics of Lake ecosystems. • Aims to evaluate chemical parameters of a lake.

  4. STUDY AREA • Dalvoy Lake in Mysore City. • Area is 359 acres, length 2.2 Km. • It is in the southwest direction. • Latitude 12 14’N and 12 16’N. • Longitude of 76 38’E and 76 39’E. • An elevation of 707.1 above mean sea level.

  5. METHODOLOGY • Samples were collected from the lake. • To find out depthwise variation of quality, some samples were collected from depth varying 4-12 feet. • Samples were analysed following the standard procedures. • The chemical analysis results were processed using the computer programme HYCH.

  6. RESULT • TDS ranges between 773 and 837mg/L(500mg/L). • Ca &Mg 98 and 75mg/L, against 75 and 30 mg/L. • Cl 179 mg/L (250mg/L). • Na 129 mg/L (200mg/L), NO3 28mg/L (45mg/L) and SO4 27 mg/L (200mg/L), within the permissible limit as per ISI standards.

  7. RESULT • Handa’s Classification-both permanent and temporary hardness. • Cu 0.192 ppm (0.05ppm), Ni 0.376 ppm (0.02ppm) and Mn 0.144ppm (0.1ppm) are above ISI prescribed standard limits.

  8. Fig.2 Flow Chart of the Hydrochemical data processing Program ‘HYCH’

  9. CONCLUSION • Water pollution is not only an aesthetic problem. • Ca, Mg, Cu, Ni & Mn concentration are more. • Cu-seepage of effluent paper industry, agricultural activities. Municipal waste and sewage. • Ni & Mn might be entering through the waste waters exhaused from automobile workshops, service station, etc. • Lake water seems to be suitable for agriculture. • Encroachment along the sides should be checked.

  10. Thank you

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