SmogRank / World / Switzerland / Schwyz / January 2025

Most polluted cities in Schwyz, Switzerland, January 2025

1 city in Schwyz, Switzerland ranked by their average PM2.5 over the 31 days. The only one: Küssnacht at 2.8 µg/m³, #2,404 of 2,426 cities in the world. A city needs measurements on 70% of the days to be ranked.

  1. 1Küssnacht
    16
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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

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SmogRank, most polluted cities in Schwyz, Switzerland, PM2.5, January 2025, smogrank.com/ch/region/schwyz/history/2025-01 (accessed 10 Oct 2026). Some readings from Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published.

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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.