IITM: Firecrackers remain Delhi's top pollutant post-Deepavali

IITM models show firecracker contribution to Delhi's pollution peaked on November 9, a day after Deepavali, then declined by November 11. The finding confirms the expected seasonal spike, with no deviation from established patterns. It matters as it underscores the persistent air-quality crisis in the capital, though no new policy response is indicated.

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