According to a Centre for Science and Environment (CSE) report, the average PM2.5 concentration during the week before Diwali stood at 236 micrograms per cubic metre, almost double the 120 ug/m3 recorded in 2025. It was also the highest pre-Diwali average in three years.
On November 8, the day of Diwali, Delhi recorded an AQI of 376
Why Delhi Looked Less Hazy This Diwali Despite Worse Air Quality
Nov 11, 2026 | 12:34 PM
