SmogRank / World / Europe / Switzerland / Vaud
Most polluted cities in Vaud, Switzerland
1 measured city, last 24 hours; 0 above the WHO 24-hour guideline. The only one: Payerne at 3.6 µg/m³, #2,037 in the world.
Now: cities by their PM2.5 over the last 24 hours; fires, smoke and ash from Oct 9, the newest day mapped.
- 1Payerne 200.2×▼334
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
Vaud 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 |
|---|---|
| Lausanne | ≈ 7 µg/m³ |
| Yverdon-les-Bains | ≈ 9 µg/m³ |
| Montreux | ≈ 7 µg/m³ |
| Renens | ≈ 10 µg/m³ |
| Vevey | ≈ 7 µg/m³ |
| Nyon | ≈ 10 µg/m³ |
| Pully | ≈ 7 µg/m³ |
| Morges | ≈ 10 µg/m³ |
Bad-air episodes in Vaud
- Europe, 1 to 12 March 202612 days532 cities109 µg/m³peak, Radomsko
- 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
- Europe, 8 to 27 January 202420 days519 cities244 µg/m³peak, Czechowice-Dziedzice
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 Vaud, Switzerland, PM2.5, last 24 hours to 10 Oct 2026, 04:00 UTC, smogrank.com/ch/region/vaud. Some readings from 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.
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 2026-10-10 04:07 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).