SmogRank / World / India / Delhi / August 2026

Most polluted cities in Delhi, India, August 2026

5 cities in Delhi, India ranked by their average PM2.5 over the 31 days. Worst: Dera Māndi at 46.9 µg/m³, #28 of 2,866 cities in the world. Cleanest: Najafgarh at 25.9. A city needs measurements on 70% of the days to be ranked.

Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.

← Dera Māndi 82% 80%0
Every city in Delhi, India ranked for August 2026, one column each, ranked by unhealthy days: height is the share of its measured days that were unhealthy, colour its average. Point at it to read a city; tap to open it.
  1. 1Dera Māndi
    82%
  2. 2Delhi
    39%
  3. 3Narela
    23%
  4. 4Najafgarh
    13%
  5. 5Aya Nagar
    11%
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

All cities in the world, August 2026 · All cities in India, August 2026 · Delhi now

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SmogRank, most polluted cities in Delhi, India, PM2.5, August 2026, smogrank.com/in/region/delhi/history/2026-08 (accessed 6 Oct 2026).

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