The water quality of five major rivers in the country, including the Ganga, deteriorated during the coronavirus-induced lockdown due to factors like release of sewage and no fresh water discharge from the upstream, the Central Pollution Control Board said.

The investigated water quality analysis results of these (Sirhind Feeder Canal, Rajasthan Feeder Canal and Indira Gandhi Canal) canals from 25 selected locations are compared with the BIS 10500:2012 standards and CPCB standards for Designated Best Use.

Question raised in Lok Sabha on Polluted Rivers, 12/12/2019. Central Pollution Control Board (CPCB) in association with the State Pollution Control Boards (SPCBs)/ Pollution Control Committees (PCCs) monitors the water quality of rivers on a regular basis across the country through a network of monitoring stations.

Question raised in Rajya Sabha on Action Plan for Pollution Free Rivers, 08/07/2019. The 351 river stretches on 323 rivers are prioritised based on BOD values in five classes.