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Delhi air quality at 'hazardous' levels after Diwali fireworks

Despite green firecrackers, Delhi's air quality index surged to severe levels, with PM2.5 concentrations reaching over 15 times the World Health Organization's safe limit, officials said.

  • Delhi's Air Quality Index remained in the 'very poor' category at 350 on October 21, 2025, according to the Central Pollution Control Board .
  • Areas like Bawana and Jahangirpuri experienced 'severe' pollution levels with AQI values of 423 and 407, respectively, according to monitoring stations.
  • Despite a Supreme Court ruling allowing limited use of 'green firecrackers,' many people reportedly ignored the guidelines, contributing to hazardous air quality levels.
  • Delhi's PM2.5 pollution level of 228 micrograms per cubic meter was 15.1 times higher than the World Health Organization's limit, based on CPCB data.
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Lean Left

India's capital, New Delhi, was covered on Tuesday with a thick chape of toxic pollution after a night of fireworks fired at Diwali, the Hindu festival of lights.

·Montreal, Canada
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Center

TOKYO (AP) — A thick mixture of smoke and smog blanketed India's capital Tuesday, a day after millions of people celebrated the Hindu festival of Diwali with fireworks that spiked air pollution.

·Calhoun, United States
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Lean Left

According to data from the Swiss company IQAir, which measures air quality in cities around the world, air quality in New Delhi has deteriorated to dangerously low levels, partly due to the use of pyrotechnics during the Hindu festival of lights, Diwali.

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Phys.org broke the news in United Kingdom on Monday, October 20, 2025.
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