SmogRank / World / Romania / January 2026

Most polluted cities in Romania, January 2026

19 cities in Romania ranked by their average PM2.5 over the 31 days. Worst: Târgu Mureş at 97.7 µg/m³, #12 of 2,281 cities in the world. Cleanest: Braşov at 21.2. A city needs measurements on 70% of the days to be ranked.

← Târgu Mureş 97.7 µg/m³ 90 µg/m³0
Every city in Romania ranked for January 2026, 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. 1Târgu Mureşlow-cost sensorsMureș County
    10
  2. 2Sighetu MarmaţieiMaramureş
    9
  3. 3DejCluj County
    9
  4. 4Târgu JiuGorj County
    7
  5. 5Baia MareMaramureş
    6
  6. 6Cluj-NapocaCluj County
    4
  7. 7CraiovaDolj
    4
  8. 8CodleaBrașov County
    4
  9. 9SuceavaSuceava
    4
  10. 10ZalăuSălaj County
    4
  11. 11VoluntariIlfov
    3
  12. 11CalafatDolj
    3
  13. 13BufteaIlfov
    3
  14. 14IaşiIași County
    3
  15. 15Piatra NeamţNeamț County
    3
  16. 16Popeşti-LeordeniIlfov
    3
  17. 17TimişoaraTimiș County
    3
  18. 18BucharestBucharest
    3
  19. 19BraşovBrașov County
    3
Low risk1–3
Moderate risk4–6
High risk7–10
Very high risk10+

Canada's AQHI+ for PM2.5 (1 point per 10 µg/m³), which is defined on hourly values. 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, January 2026 · Romania now

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SmogRank, most polluted cities in Romania, PM2.5, January 2026, smogrank.com/ro/history/2026-01 (accessed 2 Oct 2026).

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