SmogRank / Countries / Slovakia

Most polluted cities in Slovakia

31 measured cities ranked by PM2.5, last 7 days. Worst: Prešov at 9.8 µg/m³, #557 in the world.

#City µg/m³
1Prešov Prešov Region
9.8
2Púchov Trenčín Region
9.8
3Zvolen Banská Bystrica Region
9.6
4Trenčín Trenčín Region
9.5
5Ružomberok Žilina Region
9.5
6Humenné Prešov Region
9.4
7Martin Žilina Region
9.4
8Trnava Trnava Region
9.1
9Senec Bratislava Region
8.9
10Čadca Žilina Region
8.9
11Nitra Nitra Region
8.8
12Vranov nad Topľou Prešov Region
8.7
13Snina Prešov Region
8.6
14Malacky Bratislava Region
8.6
15Liptovský Mikuláš Žilina Region
8.6
16Bratislava Bratislava Region
8.5
17Trebišov Košice Region
8.4
18Sereď Trnava Region
8.4
19Pezinok Bratislava Region
8.4
20Košice Košice Region
8.1
21Bardejov Prešov Region
7.9
22Partizánske Trenčín Region
7.8
23Prievidza Trenčín Region
7.2
24Žilina Žilina Region
7.0
25Žiar nad Hronom Banská Bystrica Region
6.8
26Devínska Nová Ves Bratislava Region
6.6
27Senica Trnava Region
6.5
28Komárno Nitra Region
5.8
29Poprad Prešov Region
5.7
30Handlová Trenčín Region
5.1
31Banská Bystrica Banská Bystrica Region
4.8
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

Estimated: cities without a monitor

Slovakia 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.

City7-day estimateBand
Petržalka estimated≈ 8 µg/m³Good
Považská Bystrica estimated≈ 7 µg/m³Good
Nové Zámky estimated≈ 8 µg/m³Good
Michalovce estimated≈ 9 µg/m³Good
Karlova Ves estimated≈ 8 µg/m³Good
Dúbravka estimated≈ 8 µg/m³Good
Spišská Nová Ves estimated≈ 6 µg/m³Good
Komárno estimated≈ 8 µg/m³Good
Levice estimated≈ 6 µg/m³Good
Piešťany estimated≈ 8 µg/m³Good
Topoľčany estimated≈ 9 µg/m³Good
Podunajské Biskupice estimated≈ 7 µg/m³Good
Dunajská Streda estimated≈ 9 µg/m³Good
Dubnica nad Váhom estimated≈ 9 µg/m³Good
Rimavská Sobota estimated≈ 6 µg/m³Good
Vrakuňa estimated≈ 7 µg/m³Good
Šaľa estimated≈ 8 µg/m³Good
Hlohovec estimated≈ 8 µg/m³Good
Brezno estimated≈ 6 µg/m³Good
Nové Mesto nad Váhom estimated≈ 8 µg/m³Good
Dolný Kubín estimated≈ 7 µg/m³Good
Rožňava estimated≈ 7 µg/m³Good
Bánovce nad Bebravou estimated≈ 8 µg/m³Good
Stará Ľubovňa estimated≈ 8 µg/m³Good
Skalica estimated≈ 7 µg/m³Good
Galanta estimated≈ 9 µg/m³Good
Kežmarok estimated≈ 8 µg/m³Good

Regions

Banská Bystrica Region 3Bratislava Region 5Košice Region 2Nitra Region 2Prešov Region 6Trenčín Region 4Trnava Region 3Žilina Region 5

Updated 2026-10-01 12:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.