SmogRank / World / Hungary / October 2025

Most polluted cities in Hungary, October 2025

5 cities in Hungary ranked by their average PM2.5 over the 31 days. Worst: Debrecen at 19.8 µg/m³, #278 of 2,296 cities in the world. Cleanest: Pécs at 8.3. A city needs measurements on 70% of the days to be ranked.

← Debrecen 19.8 µg/m³ 20 µg/m³0
Every city in Hungary ranked for October 2025, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1Debrecenlow-cost sensorsHajdú-Bihar
    19.8
  2. 2MiskolcBorsod-Abaúj-Zemplén
    15.4
  3. 3NyíregyházaSzabolcs-Szatmár-Bereg
    12.4
  4. 4SzegedCsongrád
    10.5
  5. 5PécsBaranya
    8.3
Good0–5
Fair6–15
Moderate16–50
Poor51–90
Very poor91–140
Extremely poor141+

The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. 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, October 2025 · Hungary now

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SmogRank, most polluted cities in Hungary, PM2.5, October 2025, smogrank.com/hu/history/2025-10 (accessed 2 Oct 2026).

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