The Ganga today is one of the most polluted rivers. It is not only untreated sewage that is dumped into the river but also toxic waste from hospitals and tanneries.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/polluted-flows-ganga
[2] http://admin.indiaenvironmentportal.org.in/category/author/swati-daftuar
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ganga
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sewage
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hospital-waste
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/river-pollution
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bangladesh
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/garbage
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/haridwar-d
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/state-pollution-control-board-spcb-0
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/uttaranchal-uttarakhand
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/yamuna
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/urbanisation