Q ST QUA TAT ALIT US O TY IN OF W N IN WA NDIA ATER A- 2 R ...
Q ST QUA TAT ALIT US O TY IN OF W N IN WA NDIA ATER A- 2 R ...
Q ST QUA TAT ALIT US O TY IN OF W N IN WA NDIA ATER A- 2 R ...
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Figure 3.18: Water Quality Trend of BOD in River PennarBOD (mg/l)76<strong>WA</strong>TER <strong>QUA</strong>LI<strong>TY</strong> TREND <strong>OF</strong> RIVER PENNAR6.36.05.254.43.942.93 2.8 2.8 332.82.7 2.5 2.82.42 2.11.9 1.9 1.91.51 1 110.8 10.5 0.6 0.70.80.502002 2003 2004 2005 2006 2007 2008 2009 2010 2011M<strong>IN</strong> MEAN MAX YEAR3.6 Observed Water QualityWater Quality of Rivers at a GlanceThe monitoring results obtained during 2011 under National Water Quality Monitoring Programmereflect that organic matter & bacterial population of faecal origin continue to dominate the water pollutionproblem in India. The major water quality concerns as revealed from the monitoring results arepathogenic pollution as reflected through indicators i.e. Total Coliforms (TC) & Faecal Coliform (FC),organic matter as reflected through Biochemical Oxygen Demand (BOD) and salinity as reflected throughconductivity. The observed range of water quality parameters in major Indian rivers for the year 2011along with summary for the year 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 and 2010 is given inTable 3.1 for comparative assessment of water quality trend between the years.40
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