SmogRank / World / Europe / Switzerland / Bern
Most polluted cities in Bern, Switzerland
No city in Bern, Switzerland has enough readings to rank for the last 30 days.
A city joins this ranking with enough days of readings over the last 30 days; none here has that right now, so there is nothing to map or chart.
Last 24 hours: 1 measured city · Last 7 days: 1 measured city · This year: 1 measured city
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
Bern 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 |
|---|---|
| Biel/Bienne | ≈ 9 µg/m³ |
| Thun | ≈ 7 µg/m³ |
| Köniz | ≈ 8 µg/m³ |
| Burgdorf | ≈ 10 µg/m³ |
| Steffisburg | ≈ 7 µg/m³ |
Bad-air episodes in Bern
- Europe, 1 to 12 March 202612 days532 cities109 µg/m³peak, Radomsko
- Europe, December 2025 to January 202625 December 2025 to 2 January 2026, 9 days189 cities110 µg/m³peak, Kempten (Allgäu)
- Europe, June 202510 to 12 June 2025, 3 days89 cities49 µg/m³peak, Villefontaine
- Europe, 14 February to 1 March 202516 days619 cities178 µg/m³peak, Krotoszyn
- Europe, 1 to 14 February 202514 days628 cities179 µg/m³peak, Banja Luka
- Germany, France and 19 more countries, January 202514 to 24 January 2025, 11 days446 cities252 µg/m³peak, Sarajevo
Times when many cities around here had PM2.5 at twice their usual or more on the same days.
Updated 2026-10-10 05:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); Love My Air (City and County of Denver), no reuse terms published (why we use them).