Data stories
Data stories · 19 Oct87 cities had dirtier air than Delhi this October. Most were in Indonesia and MalaysiaGood Air ranked 467 cities in 7 Asian countries by October 2026 PM2.5 from government monitors. The 25 most polluted are all in Indonesia; Delhi is 88th.- Data storiesAfter the monsoon, Maharashtra's air got worse four times as fast as Delhi'sWe compared 219 Indian cities before and after the 2026 monsoon left. Maharashtra's median AQI doubled, all 34 cities worse; Delhi NCR's rose 25%.
- Data storiesWhat time of day is Delhi's air cleanest? Our hourly data says early afternoonDelhi NCR's air was cleanest from noon to 5 pm and dirtiest late at night in our hourly data for 10 to 17 October 2026. When to walk, run and open windows.
