div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=envis-ganga-an-illustrationpdf-1-sewage-drains-a-flow-b-bod-2-no-of-gpihtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: cpcbenvisnicincpcbenvisnicinenvis_newsletterCPCB ENVIS Ganga - An illustrationpdf1 Sewage Drains a Flow b BOD 2 No of GPI a Effluents b BOD 3 Water Quality a DO mgl loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader033vdocumentsusreader033viewer20220421055e83975c89ad5844d31cb32ahtml5thumbnails1jpg width=140 height=200 divdiv