SmogRank / Countries / Slovakia / 2026

Most polluted cities in Slovakia, 2026

3 cities in Slovakia ranked by their average PM2.5 so far (273 of 365 days); 3 above the WHO annual guideline (5.0 µg/m³). Worst: Devínska Nová Ves at 10.0 µg/m³, #661 of 2,181 cities in the world. Cleanest: Bratislava at 9.1. A city needs measurements on 70% of the days to be ranked.

  1. 1Devínska Nová VesBratislava Region
    10.02.0×
  2. 2PopradPrešov Region
    9.21.8×
  3. 3BratislavaBratislava Region
    9.11.8×
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, 2026 · Slovakia now

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SmogRank, most polluted cities in Slovakia, PM2.5, 2026 (so far), smogrank.com/sk/history/2026 (accessed 2 Oct 2026).

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