TREND OF TEMPORAL VARIATION OF CAUVERY RIVER WATER QUALITY AT K R NAGAR IN KARNATAKA
2012
SUDEVI BASU | K. S. LOKESH
The data sets of 4 water quality monitoring stations in River Cauvery at K R Nagara which comprised of 10 water quality parameters monitored monthly over 12 years (2000-2011) are used for this study. Temporal variation of the parameters in each station is represented by Box plots. Almost all the plots indicate high positive skewness for all stations, showing rampant pollution in the river due to anthropogenic sources. This is a grave concern as no prominent drains enter the river directly in this stretch, yet high values of BOD, COD,total coliform, faecal coliform along the river indicates human waste enters the river and pollutes the same. Also Pearson’s correlation matrix for all stations indicate positive correlation between BOD and COD, TDS and Conductivity, TDS and Chlorides and TC and FC.
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