Drinking Water: Quality & Challenges:<br />• Metro cities of Delhi, Kolkata and Chennai failed in almost 10 out of 11 quality parameters tested by the Bureau of Indian Standards. <br />• Composite water Management Index: India ranks 120/122 countries. <br /><br />Cause of poor water quality: <br />• Mixing of surface water & ground water (Arsenic, fluoride contamination) <br />• Pipeline not maintained – contamination. <br />• Water supply line & sewerage line running side by side. <br />• Digging in cities & no hygiene – liberal source of pollution <br /><br />Impact: <br />• Harmful health impacts: water borne diseases ~ 70% <br />• Tourist inflow will decrease – water, air quality low. <br />• Plastic pollution: bottled water gives rise to plastic pollution <br />• Wasting resources: for 1 liter of RO or bottled water, many liters of water used. <br />• RO is expensive & deprived of nutrients. <br /><br />Challenges: <br />• Bacteria & solid wastes including chemicals hence need treatment – only chlorination not enough. <br />• Distribution & supply side quality different – need to pinpoint the issue. <br />• Boiling of water may not be enough anymore: consumer cannot do much. <br />• Water is a state subject: Federal structure. <br /><br />Way Forward: <br />• Data based support system – water quality should be tested frequently. <br />• Involvement of all citizens – sensitization & awareness.<br />• BSI standard should be mandatory. <br />• Accountability needs to be fixed. <br />• Long distance travel & treatment should be localized. <br />• Proper maintenance - pricing should be recovered.<br />• Upgrade treatment plant - killing bacterial waste primary concern: now dissolved solids content increased.<br />• New technology (ion exchange) & efficient water refining systems.<br /><br />follow me on <br /><br /><br />Dailymotion platfrom channel link -https://www.dailymotion.com/dm_68c34b0d6aa02120a52f3e2d4833e54b<br /><br />Dailymotion partner page - https://www.dailymotion.com/partner/x2bgvtt/media/video
