SmogRank / World / India / Uttar Pradesh / April 2025

Most polluted cities in Uttar Pradesh, India, April 2025

20 cities in Uttar Pradesh, India ranked by their average PM2.5 over the 30 days. Worst: Loni at 126.2 µg/m³, #1 of 2,896 cities in the world. Cleanest: Vrindāvan at 17.2. A city needs measurements on 70% of the days to be ranked.

About 8.13M people in these 9 cities breathed unhealthy air on an average day of April 2025.

Ranked by people: each city's population times its share of unhealthy days, those with a daily mean over 35.4 µg/m³ (US AQI 101+). That is how many people living there breathed unhealthy air on an average day. Only cities measured at 2 or more places at least 3 km apart are ranked: one monitor shouldn't speak for a whole city. Population is the city itself, not its wider metro area.

← Kanpur 2.47M 2M0
Every city in Uttar Pradesh, India ranked for April 2025 with monitors in two or more places, one column each, ranked by people breathing unhealthy air: height is people on an average day, colour its average. Point at it to read a city; tap to open it.
  1. 1Kanpur
    2.47M
  2. 2Lucknow
    2.37M
  3. 3Agra
    1.07M
  4. 4Meerut
    968K
  5. 5Prayagraj
    626K
  6. 6Noida
    269K
  7. 7Morādābād
    210K
  8. 8Varanasi
    146K
  9. 9Bareilly
    0
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, April 2025, smogrank.com/in/region/uttar-pradesh/history/2025-04 (accessed 7 Oct 2026).

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.