Krompachy vs Trnava: PM2.5 compared
Over the last year, Krompachy's air was 28% more polluted than Trnava, Trnava Region's: PM2.5 averaged 13.3 µg/m³ against 10.4, on the 206 days both cities were measured. Krompachy had the dirtier air on 149 of those days, Trnava, Trnava Region on 56. Krompachy was over the WHO's daily guideline of 15 µg/m³ on 76 of them, Trnava, Trnava Region on 36.
Right now
The last year, day by day
Month by month
Year by year
| Year | Krompachy | Trnava | Days Krompachy was worse |
|---|---|---|---|
| 2026 so far | 58 | 53 | 125 |
| 2025 | 63 | 56 | 188 |
| 2024 | 70 | 60 | 168 |
Means in US AQI over the days both cities were measured that year; a year shows once they share 30 such days.
Each city's worst days
Krompachy
- 8 Oct 202610336.2 µg/m³
- 15 Mar 20269331.4 µg/m³
- 16 Nov 20259231.2 µg/m³
Trnava
- 5 Aug 20268024.9 µg/m³
- 26 Jun 20267924.1 µg/m³
- 16 Apr 20267723.1 µg/m³
Daily means in US AQI, with µg/m³ beside them, since the index stops at its top value, over the days both cities were measured in the last year. Each date opens that day's world board.
Compare either city with another
Krompachy
Side by side with Prešov (the nearest), Čaňa (Slovakia's 2nd worst on 30 days), Gujranwala (the world's worst on 30 days).
Trnava
Side by side with Sereď (the nearest), Gujranwala (the world's worst on 30 days).
Use this page
SmogRank, PM2.5 daily means compared, Krompachy and Trnava, Trnava Region, 13 Oct 2025 – 12 Oct 2026, smogrank.com/compare/sk-krompachy/sk-trnava (accessed 12 Oct 2026).
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.
The same rules as every SmogRank figure: reference monitors first, and a day counts with 18 measured hours. How we measure.
Updated 2026-10-12 21:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.