SmogRank / World / India / Uttar Pradesh / 2025

Most polluted cities in Uttar Pradesh, India, 2025

20 cities in Uttar Pradesh, India ranked by their average PM2.5 over the 365 days; 20 above the WHO annual guideline (5.0 µg/m³). Worst: Ghāziābād at 88.8 µg/m³, #6 of 2,624 cities in the world. Cleanest: Bareilly at 20.5. 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.

← Ghāziābād 78% 70%0
Every city in Uttar Pradesh, India ranked for 2025, 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. 1Ghāziābād
    78%
  2. 2Muzaffarnagar
    74%
  3. 3Noida
    71%
  4. 4Dādri
    70%
  5. 5Lucknow
    67%
  6. 6Bulandshahr
    64%
  7. 7Gorakhpur
    58%
  8. 8Kanpur
    57%
  9. 9Hāpur
    53%
  10. 10Greater Noida
    52%
  11. 11Meerut
    49%
  12. 12Khurja
    48%
  13. 13Agra
    47%
  14. 14Morādābād
    42%
  15. 15Prayagraj
    37%
  16. 16Jhānsi
    35%
  17. 17Fīrozābād
    31%
  18. 18Varanasi
    25%
  19. 19Vrindāvan
    24%
  20. 20Bareilly
    16%
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

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SmogRank, most polluted cities in Uttar Pradesh, India, PM2.5, 2025, smogrank.com/in/region/uttar-pradesh/history/2025 (accessed 7 Oct 2026).

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