Environment and Disaster Management › Pollution
हिन्दी — Read in HindiWater pollution and river rejuvenation
The quality of India's rivers and drinking water: polluted stretches, sewage treatment, contaminants such as fluoride and arsenic, and the programmes that clean rivers. Prelims has asked what biological oxygen demand measures and which pollutants are found in drinking water in parts of India.
Foundation note: How a river is judged polluted: the classes, the standards and the sewage gap
Showing 1 of 5 articles, those that changed from 1 to 30 June 2026.Show all
Urban River Management Plans
Copy link to Urban River Management PlansPrelims and Mains
Urban River Management Plans shift urban planning from city centric to river centric, a shift set out at the National Ganga Council in Kanpur in December 2019.
- Their agenda runs from floodplain regulation and pollution abatement to wetland rejuvenation and reuse of treated water, using nature based solutions such as constructed wetlands, sponge parks and phytoremediation of drains.
- A constructed wetland treats sewage where it flows, with stone structures that slow the water, rock filters and plants that take up nutrients, so it needs far less energy than a mechanical plant.
What changed
24 Jun 2026BriefThe National Mission for Clean Ganga (NMCG) and the National Institute of Urban Affairs have completed plans for 13 cities, toward all 97 main stem Ganga cities. PIB, 24 Jun 2026: NMCG Scales Up Urban River Management Plans Across 63 Ganga Basin Cities (opens in a new tab)
See also: Reuse of treated wastewater · Namami Gange
Also filed elsewhere
- Fluorosis · on Non communicable diseases, nutrition and food safety
Fluorosis is the harm done to the teeth and the bone by years of drinking groundwater that carries fluoride.