Overview
- Delhi’s irrigation minister said the visible foam near Kalindi Kunj is a localized effect driven by turbulence at the Okhla barrage.
- Experts from IIT Delhi and multiple agencies attributed the froth to agitation that turns existing impurities into foam under specific hydraulic conditions.
- Officials identified surfactants from detergents, discharges from illegal dyeing units, waste from laundry clusters, and inflows from untreated or partially treated drains as contributors.
- The phenomenon is limited to certain stretches and becomes more prominent when river flows are low and pollutants concentrate.
- Lt Governor Taranjit Singh Sandhu visited the site to consult experts on practical, sustainable measures, while a Rs 6.2 crore tender for two inspection boats drew opposition criticism.