SmogRank / World / Slovakia / Trnava Region / July 2023
Most polluted cities in Trnava Region, Slovakia, July 2023
2 cities in Trnava Region, Slovakia ranked by their average PM2.5 over the 31 days. Worst: Trnava at 15.0 µg/m³, #127 of 1,375 cities in the world. Cleanest: Senica at 11.0. A city needs measurements on 70% of the days to be ranked.
OpenAQ's archive, where our readings come from, has almost none for one of these days. Cities in the United States and Europe have it from the EPA's and the European Environment Agency's own records of the same monitors; elsewhere a city's average is over its other days. Why.
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, July 2023 · All cities in Slovakia, July 2023 · Trnava Region now
Use this board
SmogRank, most polluted cities in Trnava Region, Slovakia, PM2.5, July 2023, smogrank.com/sk/region/trnava-region/history/2023-07 (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.