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The Hindu

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Delhis winter pollution: How effective is GRAP in tackling the crisis?

As Delhis air quality plunges into the poor category, the CAQM has implemented Stage I of the Graded Response Action Plan (GRAP). This explainer breaks down what GRAP is, its four stages of emergency measures, why winter pollution spikes in the national capital, and whether historical data shows the action plan actually helps curb the crisis.

27 Oct 2026 3:35 pm