Krompachy vs Ružomberok: PM2.5 compared

Over the last year, Krompachy's air was 14% more polluted than Ružomberok's: PM2.5 averaged 13.4 µg/m³ against 11.8, on the 208 days both cities were measured. Krompachy had the dirtier air on 148 of those days, Ružomberok on 58. Krompachy was over the WHO's daily guideline of 15 µg/m³ on 77 of them, Ružomberok on 56.

Right now

Krompachy#1,426on the 24-hour board of 2,504, at 29 US AQI (5.3 µg/m³)

Ružomberok#471on the 24-hour board of 2,504, at 56 US AQI (11.9 µg/m³)

The last year, day by day

Krompachy

Ružomberok

Each city's daily mean from 13 Oct 2025 to 12 Oct 2026, one stripe a day, coloured by band. A blank stripe is a day without a daily mean.

Month by month

Monthly means in µg/m³ over the days both cities were measured. Solid: Krompachy. Faded: Ružomberok. A month shows once both share 10 such days. Dashed line: the WHO daily guideline, 15 µg/m³.

Year by year

Year	Krompachy	Ružomberok	Days both measured	Days Krompachy was worse
2026 so far	13.1	11.2	179	132
2025	15.5	15.0	262	146
2024	19.0	15.6	216	157

Means in µg/m³, as in the chart above, 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
27 Jun 20269532.7 µg/m³
15 Mar 20269331.4 µg/m³

Ružomberok

15 Nov 202510135.5 µg/m³
13 Mar 20268426.9 µg/m³
16 Nov 20258225.9 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).

Ružomberok

Side by side with Liptovský Mikuláš (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 Ružomberok, 13 Oct 2025 – 12 Oct 2026, smogrank.com/compare/sk-krompachy/sk-ruzomberok (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 03:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.