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Mumbai Diwali pollution: AQI improves from 2025 before firecracker spike

  • On Sunday, Mumbai recorded its cleanest Diwali afternoon in four years with an Air Quality Index of 131, but pollution surged sharply across the city as evening firecracker celebrations began.
  • Atmospheric scientist Gufran Beig of the National Institute of Advanced Studies said strong sea breezes caused by a wind reversal helped disperse pollutants earlier in the day.
  • Pollution levels climbed rapidly by nightfall in suburbs like Andheri East, where the Chakala monitoring station reported a surge from 42 at 8 pm to 483 by 10 pm.
  • Air quality remained poor across parts of Mumbai by Monday morning, with the Bandra Reclamation area recording an AQI of 231 and smog visible around Bandra and Kala Nagar.
  • Delhi experienced similar deterioration on Sunday night, with its AQI reaching 373, as atmospheric scientist Beig warned that lingering firecracker pollutants may cause further air quality declines.
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Indian Express broke the news in Noida, India on Sunday, November 8, 2026.
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