SmogRank / World / Europe / Slovakia / Košice Region
Most polluted cities in Košice Region, Slovakia
4 measured cities, last 30 days; 0 above the WHO 24-hour guideline. Worst: Čaňa at 11.6 µg/m³, #493 in the world.
About 0 people in this city breathed unhealthy air on an average day over the last 30 days.
Ranked by people: each city's population times its share of unhealthy days, those with a daily mean over 35.4 µg/m³ (US AQI 101+). That is how many people living there breathed unhealthy air on an average day. Only cities measured at 2 or more places at least 3 km apart are ranked: one monitor shouldn't speak for a whole city. Population is the city itself, not its wider metro area.
Cities coloured by their PM2.5 over the last 24 hours. Fires, smoke and ash: Oct 5, the newest UTC day mapped.
- 1Košice 0
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Estimated: cities without a monitor
Košice Region cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Michalovce | ≈ 11 µg/m³ |
| Spišská Nová Ves | ≈ 8 µg/m³ |
| Rožňava | ≈ 9 µg/m³ |
Bad-air episodes in Košice Region
- Europe, June 202630 June 2026, 1 day14 cities31 µg/m³peak, Târgu Mureş
- Slovakia, Czechia and Poland, June 202627 to 28 June 2026, 2 days18 cities33 µg/m³peak, Krompachy
- Eastern Europe, 15 to 17 April 20263 days25 cities44 µg/m³peak, Szeged
- Poland, Hungary and Slovakia, March 202612 to 13 March 2026, 2 days10 cities64 µg/m³peak, Łask
- Eastern Europe, 16 to 21 December 20256 days129 cities298 µg/m³peak, Banja Luka
- Eastern Europe, 3 to 7 December 20255 days64 cities158 µg/m³peak, Żywiec
Times when many cities around here had PM2.5 at twice their usual or more on the same days.
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SmogRank, most polluted cities in Košice Region, Slovakia, PM2.5, last 30 days to 6 Oct 2026, 23:00 UTC, smogrank.com/sk/region/kosice-region?w=30d.
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.
Updated 2026-10-06 23:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.