SmogRank / World / Switzerland / Basel-City / March 2026
Most polluted cities in Basel-City, Switzerland, March 2026
1 city in Basel-City, Switzerland ranked by their average PM2.5 over the 31 days. The only one: Basel at 12.3 µg/m³, #1,154 of 2,947 cities in the world. A city needs measurements on 70% of the days to be ranked.
- 1Basel 57
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 Basel-City, Switzerland, PM2.5, March 2026, smogrank.com/ch/region/basel-city/history/2026-03 (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); 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.