14 Jan 2026
Timeline: Polluted River Stretches of Karnataka
The Polluted River Stretches (PRS) assessment by the Central Pollution Control Board (CPCB) provides a national snapshot of river health using a statutory, Biological Oxygen Demand (BOD)-based criterion. This page traces the timeline of PRS assessments, with a particular focus on Karnataka’s rivers, including those in the Cauvery basin. 2000Statutory Threshold for River Pollution The…