SmogRank / World / Czechia / Olomouc Region / September 2023
Most polluted cities in Olomouc Region, Czechia, September 2023
2 cities in Olomouc Region, Czechia ranked by their average PM2.5 over the 30 days. Worst: Olomouc at 14.4 µg/m³, #181 of 2,128 cities in the world. Cleanest: Přerov at 13.1. A city needs measurements on 70% of the days to be ranked.
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
All cities in the world, September 2023 · All cities in Czechia, September 2023 · Olomouc Region now
Use this board
SmogRank, most polluted cities in Olomouc Region, Czechia, PM2.5, September 2023, smogrank.com/cz/region/olomouc-region/history/2023-09 (accessed 7 Oct 2026).
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.