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Delhi Pollution

IITM's data shows that firecrackers contributed 5.6% of Delhi's PM2.5 pollution on November 5. This rose to 9.3% on November 6, 5.6% on November 7 and 43.4% on Diwali, November 8. The next day, November 9, firecrackers caused 71% of Delhi's PM2.5 pollution, while vehicles contributed just 6.9%