SmogRank / Countries / Slovakia

Most polluted cities in Slovakia

30 measured cities ranked by PM2.5, last 30 days. Worst: Trebišov at 8.1 µg/m³, #602 in the world.

#City µg/m³
1Trebišov Košice Region
8.1
2Prešov Prešov Region
8.0
3Senec Bratislava Region
8.0
4Vranov nad Topľou Prešov Region
7.9
5Košice Košice Region
7.8
6Humenné Prešov Region
7.8
7Púchov Trenčín Region
7.7
8Nitra Nitra Region
7.7
9Snina Prešov Region
7.6
10Trnava Trnava Region
7.6
11Trenčín Trenčín Region
7.6
12Sereď Trnava Region
7.5
13Ružomberok Žilina Region
7.5
14Malacky Bratislava Region
7.5
15Bardejov Prešov Region
7.2
16Bratislava Bratislava Region
7.1
17Partizánske Trenčín Region
7.0
18Martin Žilina Region
7.0
19Zvolen Banská Bystrica Region
6.9
20Pezinok Bratislava Region
6.9
21Liptovský Mikuláš Žilina Region
6.9
22Čadca Žilina Region
6.6
23Prievidza Trenčín Region
6.5
24Žiar nad Hronom Banská Bystrica Region
6.2
25Senica Trnava Region
6.2
26Žilina Žilina Region
6.1
27Komárno Nitra Region
5.6
28Poprad Prešov Region
5.5
29Devínska Nová Ves Bratislava Region
5.4
30Banská Bystrica Banská Bystrica Region
4.5
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 14:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.