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Delhi-NCR Hindustan Times India Politics • Oct 22, 2026

Delhi Yamuna Toxic Foam Crisis: Delhi Jal Board to Spray Defoaming Agents Ahead of Chhath Festival

💡 Key Takeaways

•The Delhi Jal Board will initiate the spraying of chemical defoaming agents in the coming weeks.
•The intervention aims to control toxic froth accumulation on the Yamuna river ahead of the Chhath festival.
•Municipal authorities are deploying these measures to address environmental degradation and public health concerns.

NEW DELHI [NCRBuzz Wire] — ### The Verified Facts

**The Delhi Jal Board (DJB) will initiate the spraying of chemical defoaming agents in the coming weeks to control froth formation ahead of the Chhath festival.** This targeted municipal intervention addresses the heavy accumulation of pollutant foam resembling glacier-like layers on the surface of the Yamuna river. Municipal authorities are deploying these agents to mitigate environmental degradation and safeguard devotees participating in upcoming seasonal rituals.

### Background Context

**Seasonal froth formation on the Yamuna river is primarily driven by high levels of untreated domestic sewage, phosphates from household detergents, and industrial effluent mixing into the watercourse during low-flow periods.** Previous municipal responses by agencies such as the Delhi Jal Board have similarly relied on deploying chemical defoaming agents and deploying boats with netting to physically clear the surface pollutants before major religious observances.

### What Lies Ahead

**The Delhi Jal Board will execute the anti-foaming spray operations across critical river stretches in the weeks leading up to the Chhath festival.** Municipal authorities continue to monitor water quality parameters while environmental regulators assess the long-term efficacy of chemical interventions against persistent industrial and domestic discharge.

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🏛️ Background Context

Yamuna river pollution remains a critical perennial challenge for urban planners and municipal authorities in Delhi-NCR. High phosphate concentrations combined with untreated industrial effluents and sewage during low winter discharge consistently generate heavy chemical froth, impacting public religious observances and urban river ecology.

💡 Citizen & Commuter Quick Explainer (FAQ)

Q1: What measures are being taken to clear the Yamuna toxic foam?

The Delhi Jal Board will spray chemical defoaming agents in the coming weeks to dissolve the froth ahead of the Chhath festival.

Q2: Why does the toxic foam form on the Yamuna river?

Seasonal froth accumulation is primarily caused by untreated domestic sewage, high phosphate levels from household detergents, and industrial discharges mixing during low-flow periods.

Q3: When will the anti-foaming operations take place?

The chemical defoaming spray operations are scheduled to be initiated in the weeks leading up to the Chhath festival.

Verified Wires: Hindustan Times India Politics Original Wire Dispatch ↗

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