SmogRank / Krompachy / Trenčín
Krompachy vs Trenčín: PM2.5 compared
Over the last year, Krompachy's air was 18% more polluted than Trenčín's: PM2.5 averaged 13.4 µg/m³ against 11.4, on the 177 days both cities were measured. Krompachy had the dirtier air on 123 of those days, Trenčín on 51. Krompachy was over the WHO's daily guideline of 15 µg/m³ on 65 of them, Trenčín on 38.
Right now
The last year, day by day
Month by month
Year by year
| Year | Krompachy | Trenčín | Days Krompachy was worse |
|---|---|---|---|
| 2026 so far | 58 | 55 | 101 |
| 2025 | 62 | 58 | 168 |
| 2024 | 70 | 60 | 180 |
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
Trenčín
- 25 Mar 20268527.6 µg/m³
- 20 Mar 20268326.1 µg/m³
- 16 Apr 20268024.9 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 worst on 30 days), Gujranwala (the world's worst on 30 days).
Trenčín
Side by side with Púchov (the nearest), Čaňa (Slovakia's worst on 30 days), Gujranwala (the world's worst on 30 days).
Use this page
SmogRank, PM2.5 daily means compared, Krompachy and Trenčín, 13 Oct 2025 – 12 Oct 2026, smogrank.com/compare/sk-krompachy/sk-trencin (accessed 13 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 2026-10-13 00:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.